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Vishesh 'ironeagle' Bangotra
2026-03-08 00:41:19 +05:30
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commit 80f8defcc2
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docs/index.md
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# openapi_first
::: openapi_first
- [Openapi First](openapi_first/)

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mcp_docs/modules/openapi_first.app.json
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"module": "openapi_first.app",
"content": {
"path": "openapi_first.app",
"docstring": "openapi_first.app\n=========================\n\nOpenAPI-first application bootstrap for FastAPI.\n\nThis module provides `OpenAPIFirstApp`, a thin but strict abstraction\nthat enforces OpenAPI as the single source of truth for a FastAPI service.\n\nCore principles\n---------------\n- The OpenAPI specification (JSON or YAML) defines the entire API surface.\n- Every operationId in the OpenAPI spec must have a corresponding\n Python handler function.\n- Handlers are plain Python callables (no FastAPI decorators).\n- FastAPI route registration is derived exclusively from the spec.\n- FastAPI's autogenerated OpenAPI schema is fully overridden.\n\nWhat this module does\n---------------------\n- Loads and validates an OpenAPI 3.x specification.\n- Dynamically binds HTTP routes to handler functions using operationId.\n- Registers routes with FastAPI at application startup.\n- Ensures runtime behavior matches the OpenAPI contract exactly.\n\nWhat this module does NOT do\n----------------------------\n- It does not generate OpenAPI specs.\n- It does not generate client code.\n- It does not introduce a new framework or lifecycle.\n- It does not alter FastAPI dependency injection semantics.\n\nIntended usage\n--------------\nThis module is intended for teams that want:\n\n- OpenAPI-first API development\n- Strong contract enforcement\n- Minimal FastAPI boilerplate\n- Predictable, CI-friendly failures for spec/implementation drift",
"docstring": "OpenAPI-first application bootstrap for FastAPI.\n\n---\n\n## Summary\n\nThis module provides `OpenAPIFirstApp`, a thin but strict abstraction\nthat enforces OpenAPI as the single source of truth for a FastAPI service.\n\nNotes:\n **Core Principles:**\n\n - The OpenAPI specification (JSON or YAML) defines the entire API surface\n - Every operationId in the OpenAPI spec must have a corresponding Python handler function\n - Handlers are plain Python callables (no FastAPI decorators)\n - FastAPI route registration is derived exclusively from the spec\n - FastAPI's autogenerated OpenAPI schema is fully overridden\n\n **Responsibilities:**\n\n - Loads and validates an OpenAPI 3.x specification\n - Dynamically binds HTTP routes to handler functions using operationId\n - Registers routes with FastAPI at application startup\n - Ensures runtime behavior matches the OpenAPI contract exactly\n\n **Constraints:**\n\n - This module intentionally does NOT: Generate OpenAPI specs, generate client code, introduce a new framework or lifecycle, or alter FastAPI dependency injection semantics.",
"objects": {
"FastAPI": {
"name": "FastAPI",
@@ -16,21 +16,21 @@
"kind": "function",
"path": "openapi_first.app.load_openapi",
"signature": "<bound method Alias.signature of Alias('load_openapi', 'openapi_first.loader.load_openapi')>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nThe specification is parsed based on file extension and validated\nusing a strict OpenAPI schema validator. Any error results in an\nimmediate exception, preventing application startup.\n\nParameters\n----------\npath : str or pathlib.Path\n Filesystem path to an OpenAPI specification file.\n Supported extensions:\n - `.json`\n - `.yaml`\n - `.yml`\n\nReturns\n-------\ndict\n Parsed and validated OpenAPI specification.\n\nRaises\n------\nOpenAPISpecLoadError\n If the file does not exist, cannot be parsed, or fails\n OpenAPI schema validation."
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nArgs:\n path (str | Path):\n Filesystem path to an OpenAPI specification file. Supported extensions: .json, .yaml, .yml.\n\nReturns:\n dict[str, Any]:\n Parsed and validated OpenAPI specification.\n\nRaises:\n OpenAPISpecLoadError:\n If the file does not exist, cannot be parsed, or fails OpenAPI schema validation.\n\nNotes:\n **Guarantees:**\n\n - The specification is parsed based on file extension and validated using a strict OpenAPI schema validator\n - Any error results in an immediate exception, preventing application startup"
},
"bind_routes": {
"name": "bind_routes",
"kind": "function",
"path": "openapi_first.app.bind_routes",
"signature": "<bound method Alias.signature of Alias('bind_routes', 'openapi_first.binder.bind_routes')>",
"docstring": "Bind OpenAPI operations to FastAPI routes.\n\nIterates through the OpenAPI specification paths and methods,\nresolves each operationId to a handler function, and registers\na corresponding APIRoute on the FastAPI application.\n\nParameters\n----------\napp : fastapi.FastAPI\n The FastAPI application instance to which routes will be added.\n\nspec : dict\n Parsed OpenAPI 3.x specification dictionary.\n\nroutes_module : module\n Python module containing handler functions. Each handler's\n name MUST exactly match an OpenAPI operationId.\n\nRaises\n------\nMissingOperationHandler\n If an operationId is missing from the spec or if no corresponding\n handler function exists in the routes module.\n\nBehavior guarantees\n-------------------\n- Route registration is deterministic and spec-driven.\n- No route decorators are required or supported.\n- Handler resolution errors surface at application startup."
"docstring": "Bind OpenAPI operations to FastAPI routes.\n\nArgs:\n app (fastapi.FastAPI):\n The FastAPI application instance to which routes will be added.\n spec (dict):\n Parsed OpenAPI 3.x specification dictionary.\n routes_module (module):\n Python module containing handler functions. Each handler's name MUST exactly match an OpenAPI operationId.\n\nRaises:\n MissingOperationHandler:\n If an operationId is missing from the spec or if no corresponding handler function exists in the routes module.\n\nNotes:\n **Responsibilities:**\n\n - Iterates through the OpenAPI specification paths and methods\n - Resolves each operationId to a handler function, and registers a corresponding APIRoute on the FastAPI application\n\n **Guarantees:**\n\n - Route registration is deterministic and spec-driven. No route decorators are required or supported. Handler resolution errors surface at application startup."
},
"OpenAPIFirstApp": {
"name": "OpenAPIFirstApp",
"kind": "class",
"path": "openapi_first.app.OpenAPIFirstApp",
"signature": "<bound method Class.signature of Class('OpenAPIFirstApp', 49, 120)>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"signature": "<bound method Class.signature of Class('OpenAPIFirstApp', 38, 104)>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",

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mcp_docs/modules/openapi_first.binder.json
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"module": "openapi_first.binder",
"content": {
"path": "openapi_first.binder",
"docstring": "openapi_first.binder\n============================\n\nOpenAPI-driven route binding for FastAPI.\n\nThis module is responsible for translating an OpenAPI 3.x specification\ninto concrete FastAPI routes. It enforces a strict one-to-one mapping\nbetween OpenAPI operations and Python handler functions using operationId.\n\nCore responsibility\n-------------------\n- Read path + method definitions from an OpenAPI specification\n- Resolve each operationId to a Python callable\n- Register routes with FastAPI using APIRoute\n- Fail fast when contract violations are detected\n\nDesign constraints\n------------------\n- All routes MUST be declared in the OpenAPI specification.\n- All OpenAPI operations MUST define an operationId.\n- Every operationId MUST resolve to a handler function.\n- Handlers are plain Python callables (no decorators required).\n- No implicit route creation or inference is allowed.\n\nThis module intentionally does NOT:\n-------------------------------\n- Perform request or response validation\n- Generate Pydantic models\n- Modify FastAPI dependency injection\n- Interpret OpenAPI semantics beyond routing metadata\n\nThose concerns belong to other layers or tooling.",
"docstring": "OpenAPI-driven route binding for FastAPI.\n\n---\n\n## Summary\n\nThis module is responsible for translating an OpenAPI 3.x specification\ninto concrete FastAPI routes. It enforces a strict one-to-one mapping\nbetween OpenAPI operations and Python handler functions using operationId.\n\nNotes:\n **Core Responsibility:**\n\n - Read path + method definitions from an OpenAPI specification\n - Resolve each operationId to a Python callable\n - Register routes with FastAPI using APIRoute\n - Fail fast when contract violations are detected\n\n **Design Constraints:**\n\n - All routes MUST be declared in the OpenAPI specification\n - All OpenAPI operations MUST define an operationId\n - Every operationId MUST resolve to a handler function\n - Handlers are plain Python callables (no decorators required)\n - No implicit route creation or inference is allowed\n\n **Constraints:**\n\n - This module intentionally does NOT: Perform request or response validation, generate Pydantic models, modify FastAPI dependency injection, or interpret OpenAPI semantics beyond routing metadata.",
"objects": {
"APIRoute": {
"name": "APIRoute",
@@ -16,14 +16,14 @@
"kind": "class",
"path": "openapi_first.binder.MissingOperationHandler",
"signature": "<bound method Alias.signature of Alias('MissingOperationHandler', 'openapi_first.errors.MissingOperationHandler')>",
"docstring": "Raised when an OpenAPI operation cannot be resolved to a handler.\n\nThis error occurs when:\n- An OpenAPI operation does not define an operationId, or\n- An operationId is defined but no matching function exists in the\n provided routes module.\n\nThis represents a violation of the OpenAPI-first contract and\nindicates that the specification and implementation are out of sync."
"docstring": "Raised when an OpenAPI operation cannot be resolved to a handler.\n\nNotes:\n **Scenarios:**\n\n - An OpenAPI operation does not define an operationId\n - An operationId is defined but no matching function exists in the provided routes module\n\n **Guarantees:**\n\n - This represents a violation of the OpenAPI-first contract and indicates that the specification and implementation are out of sync"
},
"bind_routes": {
"name": "bind_routes",
"kind": "function",
"path": "openapi_first.binder.bind_routes",
"signature": "<bound method Function.signature of Function('bind_routes', 41, 102)>",
"docstring": "Bind OpenAPI operations to FastAPI routes.\n\nIterates through the OpenAPI specification paths and methods,\nresolves each operationId to a handler function, and registers\na corresponding APIRoute on the FastAPI application.\n\nParameters\n----------\napp : fastapi.FastAPI\n The FastAPI application instance to which routes will be added.\n\nspec : dict\n Parsed OpenAPI 3.x specification dictionary.\n\nroutes_module : module\n Python module containing handler functions. Each handler's\n name MUST exactly match an OpenAPI operationId.\n\nRaises\n------\nMissingOperationHandler\n If an operationId is missing from the spec or if no corresponding\n handler function exists in the routes module.\n\nBehavior guarantees\n-------------------\n- Route registration is deterministic and spec-driven.\n- No route decorators are required or supported.\n- Handler resolution errors surface at application startup."
"signature": "<bound method Function.signature of Function('bind_routes', 38, 93)>",
"docstring": "Bind OpenAPI operations to FastAPI routes.\n\nArgs:\n app (fastapi.FastAPI):\n The FastAPI application instance to which routes will be added.\n spec (dict):\n Parsed OpenAPI 3.x specification dictionary.\n routes_module (module):\n Python module containing handler functions. Each handler's name MUST exactly match an OpenAPI operationId.\n\nRaises:\n MissingOperationHandler:\n If an operationId is missing from the spec or if no corresponding handler function exists in the routes module.\n\nNotes:\n **Responsibilities:**\n\n - Iterates through the OpenAPI specification paths and methods\n - Resolves each operationId to a handler function, and registers a corresponding APIRoute on the FastAPI application\n\n **Guarantees:**\n\n - Route registration is deterministic and spec-driven. No route decorators are required or supported. Handler resolution errors surface at application startup."
},
"Any": {
"name": "Any",

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mcp_docs/modules/openapi_first.cli.json
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"module": "openapi_first.cli",
"content": {
"path": "openapi_first.cli",
"docstring": "openapi_first.cli\n========================\n\nCommand-line interface for FastAPI OpenAPI-first scaffolding utilities.\n\nThis CLI bootstraps OpenAPI-first FastAPI applications from versioned,\nbundled templates packaged with the library.",
"docstring": "Command-line interface for FastAPI OpenAPI-first scaffolding utilities.\n\n---\n\n## Summary\n\nThis CLI bootstraps OpenAPI-first FastAPI applications from versioned,\nbundled templates packaged with the library.",
"objects": {
"argparse": {
"name": "argparse",
@@ -43,21 +43,21 @@
"name": "available_templates",
"kind": "function",
"path": "openapi_first.cli.available_templates",
"signature": "<bound method Function.signature of Function('available_templates', 20, 29)>",
"docstring": "Return a list of available application templates."
"signature": "<bound method Function.signature of Function('available_templates', 21, 34)>",
"docstring": "Return a list of available application templates.\n\nReturns:\n list[str]:\n Sorted list of template names found in the internal templates directory."
},
"copy_template": {
"name": "copy_template",
"kind": "function",
"path": "openapi_first.cli.copy_template",
"signature": "<bound method Function.signature of Function('copy_template', 32, 49)>",
"docstring": "Copy a bundled OpenAPI-first application template into a directory."
"signature": "<bound method Function.signature of Function('copy_template', 37, 64)>",
"docstring": "Copy a bundled OpenAPI-first application template into a directory.\n\nArgs:\n template (str):\n Name of the template to copy.\n target_dir (Path):\n Filesystem path where the template should be copied.\n\nRaises:\n FileNotFoundError:\n If the requested template does not exist."
},
"main": {
"name": "main",
"kind": "function",
"path": "openapi_first.cli.main",
"signature": "<bound method Function.signature of Function('main', 52, 88)>",
"signature": "<bound method Function.signature of Function('main', 67, 103)>",
"docstring": null
}
}

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mcp_docs/modules/openapi_first.client.json
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"module": "openapi_first.client",
"content": {
"path": "openapi_first.client",
"docstring": "openapi_first.client\n====================\n\nOpenAPI-first HTTP client for contract-driven services.\n\nThis module provides `OpenAPIClient`, a thin, strict HTTP client that\nderives all callable operations directly from an OpenAPI 3.x specification.\n\nIt is the client counterpart to `OpenAPIFirstApp`.\n\nCore principles\n---------------\n- The OpenAPI specification is the single source of truth.\n- Each operationId becomes a callable Python method.\n- No implicit schema mutation or inference.\n- No code generation step.\n- Minimal abstraction over httpx.\n\nWhat this module does\n---------------------\n- Parses an OpenAPI 3.x specification.\n- Dynamically creates one callable per operationId.\n- Enforces presence of:\n - servers\n - paths\n - operationId\n- Formats path parameters safely.\n- Handles JSON request bodies explicitly.\n- Returns raw `httpx.Response` objects.\n\nWhat this module does NOT do\n----------------------------\n- It does not generate client code.\n- It does not validate request/response schemas.\n- It does not deserialize responses.\n- It does not retry requests.\n- It does not implement authentication helpers.\n- It does not assume non-2xx responses are failures.\n\nIntended usage\n--------------\nThis client is designed for:\n\n- Service-to-service communication\n- Integration testing\n- Contract-driven internal SDK usage\n- Systems that want OpenAPI-first symmetry with `OpenAPIFirstApp`\n\nDesign constraints\n------------------\n- Only the first server in the OpenAPI `servers` list is used if\n `base_url` is not explicitly provided.\n- Only explicitly declared request bodies are allowed.\n- `application/json` is handled natively; other media types are sent as raw content.\n- All responses are returned as-is.",
"docstring": "OpenAPI-first HTTP client for contract-driven services.\n\n---\n\n## Summary\n\nThis module provides `OpenAPIClient`, a thin, strict HTTP client that\nderives all callable operations directly from an OpenAPI 3.x specification.\n\nIt is the client counterpart to `OpenAPIFirstApp`.\n\nNotes:\n **Core Principles:**\n\n - The OpenAPI specification is the single source of truth\n - Each operationId becomes a callable Python method\n - No implicit schema mutation or inference\n - No code generation step\n - Minimal abstraction over httpx\n\n **Responsibilities:**\n\n - Parses an OpenAPI 3.x specification\n - Dynamically creates one callable per operationId\n - Enforces presence of servers, paths, and operationId\n - Formats path parameters safely\n - Handles JSON request bodies explicitly\n - Returns raw `httpx.Response` objects\n\n **Constraints:**\n\n - This module intentionally does NOT: Generate client code, validate request/response schemas, deserialize responses, retry requests, implement authentication helpers, or assume non-2xx responses are failures.",
"objects": {
"Any": {
"name": "Any",
@@ -51,21 +51,21 @@
"kind": "class",
"path": "openapi_first.client.OpenAPIFirstError",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstError', 'openapi_first.errors.OpenAPIFirstError')>",
"docstring": "Base exception for all OpenAPI-first enforcement errors.\n\nThis exception exists to allow callers, test suites, and CI pipelines\nto catch and distinguish OpenAPI contract violations from unrelated\nruntime errors.\n\nAll exceptions raised by the OpenAPI-first core should inherit from\nthis type."
"docstring": "Base exception for all OpenAPI-first enforcement errors.\n\nNotes:\n **Responsibilities:**\n\n - This exception exists to allow callers, test suites, and CI pipelines to catch and distinguish OpenAPI contract violations from unrelated runtime errors\n - All exceptions raised by the OpenAPI-first core should inherit from this type"
},
"OpenAPIClientError": {
"name": "OpenAPIClientError",
"kind": "class",
"path": "openapi_first.client.OpenAPIClientError",
"signature": "<bound method Class.signature of Class('OpenAPIClientError', 67, 68)>",
"signature": "<bound method Class.signature of Class('OpenAPIClientError', 44, 47)>",
"docstring": "Raised when an OpenAPI client operation fails."
},
"OpenAPIClient": {
"name": "OpenAPIClient",
"kind": "class",
"path": "openapi_first.client.OpenAPIClient",
"signature": "<bound method Class.signature of Class('OpenAPIClient', 71, 291)>",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nThis client derives all callable methods directly from an OpenAPI 3.x\nspecification. Each operationId becomes a method on the client\ninstance.\n\nDesign principles\n-----------------\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation\n- Returns raw httpx.Response objects\n- No response validation or deserialization\n\nParameters\n----------\nspec : dict\n Parsed OpenAPI 3.x specification.\nbase_url : str | None\n Base URL of the target service. If omitted, the first entry\n in the OpenAPI `servers` list is used.\nclient : httpx.Client | None\n Optional preconfigured httpx client instance.\n\nRaises\n------\nOpenAPIClientError\n If:\n - No servers are defined and base_url is not provided\n - OpenAPI spec has no paths\n - An operation is missing operationId\n - Duplicate operationIds are detected\n - Required path parameters are missing\n - Required request body is missing\n\n Example\n-------\n```python\nfrom openapi_first import loader, client\n\nspec = loader.load_openapi(\"openapi.yaml\")\n\napi = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n)\n\n# Call operationId: getUser\nresponse = api.getUser(\n path_params={\"user_id\": 123}\n)\n\nprint(response.status_code)\nprint(response.json())\n\n# Call operationId: createUser\nresponse = api.createUser(\n body={\"name\": \"Bob\"}\n)\n\nprint(response.status_code)\n```",
"signature": "<bound method Class.signature of Class('OpenAPIClient', 50, 257)>",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nNotes:\n **Responsibilities:**\n\n - This client derives all callable methods directly from an OpenAPI 3.x specification. Each operationId becomes a method on the client instance.\n\n **Guarantees:**\n\n - One callable per operationId\n - Explicit parameters (path, query, headers, body)\n - No implicit schema inference or mutation\n - Returns raw `httpx.Response` objects\n - No response validation or deserialization\n\nExample:\n ```python\n from openapi_first import loader, client\n\n spec = loader.load_openapi(\"openapi.yaml\")\n\n api = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n )\n\n # Call operationId: getUser\n response = api.getUser(\n path_params={\"user_id\": 123}\n )\n\n print(response.status_code)\n print(response.json())\n ```",
"members": {
"spec": {
"name": "spec",
@@ -92,7 +92,7 @@
"name": "operations",
"kind": "function",
"path": "openapi_first.client.OpenAPIClient.operations",
"signature": "<bound method Function.signature of Function('operations', 160, 161)>",
"signature": "<bound method Function.signature of Function('operations', 126, 127)>",
"docstring": null
}
}

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mcp_docs/modules/openapi_first.errors.json
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"module": "openapi_first.errors",
"content": {
"path": "openapi_first.errors",
"docstring": "openapi_first.errors\n============================\n\nCustom exceptions for OpenAPI-first FastAPI applications.\n\nThis module defines a small hierarchy of explicit, intention-revealing\nexceptions used to signal contract violations between an OpenAPI\nspecification and its Python implementation.\n\nDesign principles\n-----------------\n- Errors represent *programmer mistakes*, not runtime conditions.\n- All errors are raised during application startup.\n- Messages are actionable and suitable for CI/CD output.\n- Exceptions are explicit rather than reused from generic built-ins.\n\nThese errors should normally cause immediate application failure.",
"docstring": "Exceptions for OpenAPI-first FastAPI applications.\n\n---\n\n## Summary\n\nThis module defines a small hierarchy of explicit, intention-revealing\nexceptions used to signal contract violations between an OpenAPI\nspecification and its Python implementation.\n\nNotes:\n **Design Principles:**\n\n - Errors represent programmer mistakes, not runtime conditions\n - All errors are raised during application startup\n - Messages are actionable and suitable for CI/CD output\n - Exceptions are explicit rather than reused from generic built-ins\n\n These errors should normally cause immediate application failure.",
"objects": {
"OpenAPIFirstError": {
"name": "OpenAPIFirstError",
"kind": "class",
"path": "openapi_first.errors.OpenAPIFirstError",
"signature": "<bound method Class.signature of Class('OpenAPIFirstError', 21, 32)>",
"docstring": "Base exception for all OpenAPI-first enforcement errors.\n\nThis exception exists to allow callers, test suites, and CI pipelines\nto catch and distinguish OpenAPI contract violations from unrelated\nruntime errors.\n\nAll exceptions raised by the OpenAPI-first core should inherit from\nthis type."
"signature": "<bound method Class.signature of Class('OpenAPIFirstError', 23, 33)>",
"docstring": "Base exception for all OpenAPI-first enforcement errors.\n\nNotes:\n **Responsibilities:**\n\n - This exception exists to allow callers, test suites, and CI pipelines to catch and distinguish OpenAPI contract violations from unrelated runtime errors\n - All exceptions raised by the OpenAPI-first core should inherit from this type"
},
"MissingOperationHandler": {
"name": "MissingOperationHandler",
"kind": "class",
"path": "openapi_first.errors.MissingOperationHandler",
"signature": "<bound method Class.signature of Class('MissingOperationHandler', 35, 72)>",
"docstring": "Raised when an OpenAPI operation cannot be resolved to a handler.\n\nThis error occurs when:\n- An OpenAPI operation does not define an operationId, or\n- An operationId is defined but no matching function exists in the\n provided routes module.\n\nThis represents a violation of the OpenAPI-first contract and\nindicates that the specification and implementation are out of sync."
"signature": "<bound method Class.signature of Class('MissingOperationHandler', 36, 74)>",
"docstring": "Raised when an OpenAPI operation cannot be resolved to a handler.\n\nNotes:\n **Scenarios:**\n\n - An OpenAPI operation does not define an operationId\n - An operationId is defined but no matching function exists in the provided routes module\n\n **Guarantees:**\n\n - This represents a violation of the OpenAPI-first contract and indicates that the specification and implementation are out of sync"
},
"Optional": {
"name": "Optional",

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mcp_docs/modules/openapi_first.json
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mcp_docs/modules/openapi_first.loader.json
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@@ -2,7 +2,7 @@
"module": "openapi_first.loader",
"content": {
"path": "openapi_first.loader",
"docstring": "openapi_first.loaders\n=============================\n\nOpenAPI specification loading and validation utilities.\n\nThis module is responsible for loading an OpenAPI 3.x specification\nfrom disk and validating it before it is used by the application.\n\nIt enforces the principle that an invalid or malformed OpenAPI document\nmust never reach the routing or runtime layers.\n\nDesign principles\n-----------------\n- OpenAPI is treated as an authoritative contract.\n- Invalid specifications fail fast at application startup.\n- Supported formats are JSON and YAML.\n- Validation errors are surfaced clearly and early.\n\nThis module intentionally does NOT:\n-----------------------------------\n- Modify the OpenAPI document\n- Infer missing fields\n- Generate models or code\n- Perform request/response validation at runtime",
"docstring": "OpenAPI specification loading and validation utilities.\n\n---\n\n## Summary\n\nThis module is responsible for loading an OpenAPI 3.x specification\nfrom disk and validating it before it is used by the application.\n\nIt enforces the principle that an invalid or malformed OpenAPI document\nmust never reach the routing or runtime layers.\n\nNotes:\n **Design Principles:**\n\n - OpenAPI is treated as an authoritative contract\n - Invalid specifications fail fast at application startup\n - Supported formats are JSON and YAML\n - Validation errors are surfaced clearly and early\n\n **Constraints:**\n\n - This module intentionally does NOT: Modify the OpenAPI document, infer missing fields, generate models or code, or perform request/response validation at runtime.",
"objects": {
"json": {
"name": "json",
@@ -44,21 +44,21 @@
"kind": "class",
"path": "openapi_first.loader.OpenAPIFirstError",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstError', 'openapi_first.errors.OpenAPIFirstError')>",
"docstring": "Base exception for all OpenAPI-first enforcement errors.\n\nThis exception exists to allow callers, test suites, and CI pipelines\nto catch and distinguish OpenAPI contract violations from unrelated\nruntime errors.\n\nAll exceptions raised by the OpenAPI-first core should inherit from\nthis type."
"docstring": "Base exception for all OpenAPI-first enforcement errors.\n\nNotes:\n **Responsibilities:**\n\n - This exception exists to allow callers, test suites, and CI pipelines to catch and distinguish OpenAPI contract violations from unrelated runtime errors\n - All exceptions raised by the OpenAPI-first core should inherit from this type"
},
"OpenAPISpecLoadError": {
"name": "OpenAPISpecLoadError",
"kind": "class",
"path": "openapi_first.loader.OpenAPISpecLoadError",
"signature": "<bound method Class.signature of Class('OpenAPISpecLoadError', 38, 45)>",
"docstring": "Raised when an OpenAPI specification cannot be loaded or validated.\n\nThis error indicates that the OpenAPI document is unreadable,\nmalformed, or violates the OpenAPI 3.x specification."
"signature": "<bound method Class.signature of Class('OpenAPISpecLoadError', 37, 46)>",
"docstring": "Raised when an OpenAPI specification cannot be loaded or validated.\n\nNotes:\n **Guarantees:**\n\n - This error indicates that the OpenAPI document is unreadable, malformed, or violates the OpenAPI 3.x specification"
},
"load_openapi": {
"name": "load_openapi",
"kind": "function",
"path": "openapi_first.loader.load_openapi",
"signature": "<bound method Function.signature of Function('load_openapi', 48, 107)>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nThe specification is parsed based on file extension and validated\nusing a strict OpenAPI schema validator. Any error results in an\nimmediate exception, preventing application startup.\n\nParameters\n----------\npath : str or pathlib.Path\n Filesystem path to an OpenAPI specification file.\n Supported extensions:\n - `.json`\n - `.yaml`\n - `.yml`\n\nReturns\n-------\ndict\n Parsed and validated OpenAPI specification.\n\nRaises\n------\nOpenAPISpecLoadError\n If the file does not exist, cannot be parsed, or fails\n OpenAPI schema validation."
"signature": "<bound method Function.signature of Function('load_openapi', 49, 102)>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nArgs:\n path (str | Path):\n Filesystem path to an OpenAPI specification file. Supported extensions: .json, .yaml, .yml.\n\nReturns:\n dict[str, Any]:\n Parsed and validated OpenAPI specification.\n\nRaises:\n OpenAPISpecLoadError:\n If the file does not exist, cannot be parsed, or fails OpenAPI schema validation.\n\nNotes:\n **Guarantees:**\n\n - The specification is parsed based on file extension and validated using a strict OpenAPI schema validator\n - Any error results in an immediate exception, preventing application startup"
},
"Dict": {
"name": "Dict",

6
mcp_docs/modules/openapi_first.templates.crud_app.json
View File

@@ -67,7 +67,7 @@
"kind": "class",
"path": "openapi_first.templates.crud_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",
@@ -178,14 +178,14 @@
"kind": "function",
"path": "openapi_first.templates.crud_app.test_crud_app.load_openapi",
"signature": "<bound method Alias.signature of Alias('load_openapi', 'openapi_first.loader.load_openapi')>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nThe specification is parsed based on file extension and validated\nusing a strict OpenAPI schema validator. Any error results in an\nimmediate exception, preventing application startup.\n\nParameters\n----------\npath : str or pathlib.Path\n Filesystem path to an OpenAPI specification file.\n Supported extensions:\n - `.json`\n - `.yaml`\n - `.yml`\n\nReturns\n-------\ndict\n Parsed and validated OpenAPI specification.\n\nRaises\n------\nOpenAPISpecLoadError\n If the file does not exist, cannot be parsed, or fails\n OpenAPI schema validation."
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nArgs:\n path (str | Path):\n Filesystem path to an OpenAPI specification file. Supported extensions: .json, .yaml, .yml.\n\nReturns:\n dict[str, Any]:\n Parsed and validated OpenAPI specification.\n\nRaises:\n OpenAPISpecLoadError:\n If the file does not exist, cannot be parsed, or fails OpenAPI schema validation.\n\nNotes:\n **Guarantees:**\n\n - The specification is parsed based on file extension and validated using a strict OpenAPI schema validator\n - Any error results in an immediate exception, preventing application startup"
},
"OpenAPIClient": {
"name": "OpenAPIClient",
"kind": "class",
"path": "openapi_first.templates.crud_app.test_crud_app.OpenAPIClient",
"signature": "<bound method Alias.signature of Alias('OpenAPIClient', 'openapi_first.client.OpenAPIClient')>",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nThis client derives all callable methods directly from an OpenAPI 3.x\nspecification. Each operationId becomes a method on the client\ninstance.\n\nDesign principles\n-----------------\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation\n- Returns raw httpx.Response objects\n- No response validation or deserialization\n\nParameters\n----------\nspec : dict\n Parsed OpenAPI 3.x specification.\nbase_url : str | None\n Base URL of the target service. If omitted, the first entry\n in the OpenAPI `servers` list is used.\nclient : httpx.Client | None\n Optional preconfigured httpx client instance.\n\nRaises\n------\nOpenAPIClientError\n If:\n - No servers are defined and base_url is not provided\n - OpenAPI spec has no paths\n - An operation is missing operationId\n - Duplicate operationIds are detected\n - Required path parameters are missing\n - Required request body is missing\n\n Example\n-------\n```python\nfrom openapi_first import loader, client\n\nspec = loader.load_openapi(\"openapi.yaml\")\n\napi = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n)\n\n# Call operationId: getUser\nresponse = api.getUser(\n path_params={\"user_id\": 123}\n)\n\nprint(response.status_code)\nprint(response.json())\n\n# Call operationId: createUser\nresponse = api.createUser(\n body={\"name\": \"Bob\"}\n)\n\nprint(response.status_code)\n```",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nNotes:\n **Responsibilities:**\n\n - This client derives all callable methods directly from an OpenAPI 3.x specification. Each operationId becomes a method on the client instance.\n\n **Guarantees:**\n\n - One callable per operationId\n - Explicit parameters (path, query, headers, body)\n - No implicit schema inference or mutation\n - Returns raw `httpx.Response` objects\n - No response validation or deserialization\n\nExample:\n ```python\n from openapi_first import loader, client\n\n spec = loader.load_openapi(\"openapi.yaml\")\n\n api = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n )\n\n # Call operationId: getUser\n response = api.getUser(\n path_params={\"user_id\": 123}\n )\n\n print(response.status_code)\n print(response.json())\n ```",
"members": {
"spec": {
"name": "spec",

2
mcp_docs/modules/openapi_first.templates.crud_app.main.json
View File

@@ -9,7 +9,7 @@
"kind": "class",
"path": "openapi_first.templates.crud_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",

4
mcp_docs/modules/openapi_first.templates.crud_app.test_crud_app.json
View File

@@ -23,14 +23,14 @@
"kind": "function",
"path": "openapi_first.templates.crud_app.test_crud_app.load_openapi",
"signature": "<bound method Alias.signature of Alias('load_openapi', 'openapi_first.loader.load_openapi')>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nThe specification is parsed based on file extension and validated\nusing a strict OpenAPI schema validator. Any error results in an\nimmediate exception, preventing application startup.\n\nParameters\n----------\npath : str or pathlib.Path\n Filesystem path to an OpenAPI specification file.\n Supported extensions:\n - `.json`\n - `.yaml`\n - `.yml`\n\nReturns\n-------\ndict\n Parsed and validated OpenAPI specification.\n\nRaises\n------\nOpenAPISpecLoadError\n If the file does not exist, cannot be parsed, or fails\n OpenAPI schema validation."
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nArgs:\n path (str | Path):\n Filesystem path to an OpenAPI specification file. Supported extensions: .json, .yaml, .yml.\n\nReturns:\n dict[str, Any]:\n Parsed and validated OpenAPI specification.\n\nRaises:\n OpenAPISpecLoadError:\n If the file does not exist, cannot be parsed, or fails OpenAPI schema validation.\n\nNotes:\n **Guarantees:**\n\n - The specification is parsed based on file extension and validated using a strict OpenAPI schema validator\n - Any error results in an immediate exception, preventing application startup"
},
"OpenAPIClient": {
"name": "OpenAPIClient",
"kind": "class",
"path": "openapi_first.templates.crud_app.test_crud_app.OpenAPIClient",
"signature": "<bound method Alias.signature of Alias('OpenAPIClient', 'openapi_first.client.OpenAPIClient')>",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nThis client derives all callable methods directly from an OpenAPI 3.x\nspecification. Each operationId becomes a method on the client\ninstance.\n\nDesign principles\n-----------------\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation\n- Returns raw httpx.Response objects\n- No response validation or deserialization\n\nParameters\n----------\nspec : dict\n Parsed OpenAPI 3.x specification.\nbase_url : str | None\n Base URL of the target service. If omitted, the first entry\n in the OpenAPI `servers` list is used.\nclient : httpx.Client | None\n Optional preconfigured httpx client instance.\n\nRaises\n------\nOpenAPIClientError\n If:\n - No servers are defined and base_url is not provided\n - OpenAPI spec has no paths\n - An operation is missing operationId\n - Duplicate operationIds are detected\n - Required path parameters are missing\n - Required request body is missing\n\n Example\n-------\n```python\nfrom openapi_first import loader, client\n\nspec = loader.load_openapi(\"openapi.yaml\")\n\napi = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n)\n\n# Call operationId: getUser\nresponse = api.getUser(\n path_params={\"user_id\": 123}\n)\n\nprint(response.status_code)\nprint(response.json())\n\n# Call operationId: createUser\nresponse = api.createUser(\n body={\"name\": \"Bob\"}\n)\n\nprint(response.status_code)\n```",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nNotes:\n **Responsibilities:**\n\n - This client derives all callable methods directly from an OpenAPI 3.x specification. Each operationId becomes a method on the client instance.\n\n **Guarantees:**\n\n - One callable per operationId\n - Explicit parameters (path, query, headers, body)\n - No implicit schema inference or mutation\n - Returns raw `httpx.Response` objects\n - No response validation or deserialization\n\nExample:\n ```python\n from openapi_first import loader, client\n\n spec = loader.load_openapi(\"openapi.yaml\")\n\n api = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n )\n\n # Call operationId: getUser\n response = api.getUser(\n path_params={\"user_id\": 123}\n )\n\n print(response.status_code)\n print(response.json())\n ```",
"members": {
"spec": {
"name": "spec",

2
mcp_docs/modules/openapi_first.templates.health_app.json
View File

@@ -16,7 +16,7 @@
"kind": "class",
"path": "openapi_first.templates.health_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",

2
mcp_docs/modules/openapi_first.templates.health_app.main.json
View File

@@ -9,7 +9,7 @@
"kind": "class",
"path": "openapi_first.templates.health_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",

14
mcp_docs/modules/openapi_first.templates.json
View File

@@ -74,7 +74,7 @@
"kind": "class",
"path": "openapi_first.templates.crud_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",
@@ -185,14 +185,14 @@
"kind": "function",
"path": "openapi_first.templates.crud_app.test_crud_app.load_openapi",
"signature": "<bound method Alias.signature of Alias('load_openapi', 'openapi_first.loader.load_openapi')>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nThe specification is parsed based on file extension and validated\nusing a strict OpenAPI schema validator. Any error results in an\nimmediate exception, preventing application startup.\n\nParameters\n----------\npath : str or pathlib.Path\n Filesystem path to an OpenAPI specification file.\n Supported extensions:\n - `.json`\n - `.yaml`\n - `.yml`\n\nReturns\n-------\ndict\n Parsed and validated OpenAPI specification.\n\nRaises\n------\nOpenAPISpecLoadError\n If the file does not exist, cannot be parsed, or fails\n OpenAPI schema validation."
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nArgs:\n path (str | Path):\n Filesystem path to an OpenAPI specification file. Supported extensions: .json, .yaml, .yml.\n\nReturns:\n dict[str, Any]:\n Parsed and validated OpenAPI specification.\n\nRaises:\n OpenAPISpecLoadError:\n If the file does not exist, cannot be parsed, or fails OpenAPI schema validation.\n\nNotes:\n **Guarantees:**\n\n - The specification is parsed based on file extension and validated using a strict OpenAPI schema validator\n - Any error results in an immediate exception, preventing application startup"
},
"OpenAPIClient": {
"name": "OpenAPIClient",
"kind": "class",
"path": "openapi_first.templates.crud_app.test_crud_app.OpenAPIClient",
"signature": "<bound method Alias.signature of Alias('OpenAPIClient', 'openapi_first.client.OpenAPIClient')>",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nThis client derives all callable methods directly from an OpenAPI 3.x\nspecification. Each operationId becomes a method on the client\ninstance.\n\nDesign principles\n-----------------\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation\n- Returns raw httpx.Response objects\n- No response validation or deserialization\n\nParameters\n----------\nspec : dict\n Parsed OpenAPI 3.x specification.\nbase_url : str | None\n Base URL of the target service. If omitted, the first entry\n in the OpenAPI `servers` list is used.\nclient : httpx.Client | None\n Optional preconfigured httpx client instance.\n\nRaises\n------\nOpenAPIClientError\n If:\n - No servers are defined and base_url is not provided\n - OpenAPI spec has no paths\n - An operation is missing operationId\n - Duplicate operationIds are detected\n - Required path parameters are missing\n - Required request body is missing\n\n Example\n-------\n```python\nfrom openapi_first import loader, client\n\nspec = loader.load_openapi(\"openapi.yaml\")\n\napi = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n)\n\n# Call operationId: getUser\nresponse = api.getUser(\n path_params={\"user_id\": 123}\n)\n\nprint(response.status_code)\nprint(response.json())\n\n# Call operationId: createUser\nresponse = api.createUser(\n body={\"name\": \"Bob\"}\n)\n\nprint(response.status_code)\n```",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nNotes:\n **Responsibilities:**\n\n - This client derives all callable methods directly from an OpenAPI 3.x specification. Each operationId becomes a method on the client instance.\n\n **Guarantees:**\n\n - One callable per operationId\n - Explicit parameters (path, query, headers, body)\n - No implicit schema inference or mutation\n - Returns raw `httpx.Response` objects\n - No response validation or deserialization\n\nExample:\n ```python\n from openapi_first import loader, client\n\n spec = loader.load_openapi(\"openapi.yaml\")\n\n api = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n )\n\n # Call operationId: getUser\n response = api.getUser(\n path_params={\"user_id\": 123}\n )\n\n print(response.status_code)\n print(response.json())\n ```",
"members": {
"spec": {
"name": "spec",
@@ -296,7 +296,7 @@
"kind": "class",
"path": "openapi_first.templates.health_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",
@@ -425,7 +425,7 @@
"kind": "class",
"path": "openapi_first.templates.model_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",
@@ -605,14 +605,14 @@
"kind": "function",
"path": "openapi_first.templates.model_app.test_model_app.load_openapi",
"signature": "<bound method Alias.signature of Alias('load_openapi', 'openapi_first.loader.load_openapi')>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nThe specification is parsed based on file extension and validated\nusing a strict OpenAPI schema validator. Any error results in an\nimmediate exception, preventing application startup.\n\nParameters\n----------\npath : str or pathlib.Path\n Filesystem path to an OpenAPI specification file.\n Supported extensions:\n - `.json`\n - `.yaml`\n - `.yml`\n\nReturns\n-------\ndict\n Parsed and validated OpenAPI specification.\n\nRaises\n------\nOpenAPISpecLoadError\n If the file does not exist, cannot be parsed, or fails\n OpenAPI schema validation."
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nArgs:\n path (str | Path):\n Filesystem path to an OpenAPI specification file. Supported extensions: .json, .yaml, .yml.\n\nReturns:\n dict[str, Any]:\n Parsed and validated OpenAPI specification.\n\nRaises:\n OpenAPISpecLoadError:\n If the file does not exist, cannot be parsed, or fails OpenAPI schema validation.\n\nNotes:\n **Guarantees:**\n\n - The specification is parsed based on file extension and validated using a strict OpenAPI schema validator\n - Any error results in an immediate exception, preventing application startup"
},
"OpenAPIClient": {
"name": "OpenAPIClient",
"kind": "class",
"path": "openapi_first.templates.model_app.test_model_app.OpenAPIClient",
"signature": "<bound method Alias.signature of Alias('OpenAPIClient', 'openapi_first.client.OpenAPIClient')>",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nThis client derives all callable methods directly from an OpenAPI 3.x\nspecification. Each operationId becomes a method on the client\ninstance.\n\nDesign principles\n-----------------\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation\n- Returns raw httpx.Response objects\n- No response validation or deserialization\n\nParameters\n----------\nspec : dict\n Parsed OpenAPI 3.x specification.\nbase_url : str | None\n Base URL of the target service. If omitted, the first entry\n in the OpenAPI `servers` list is used.\nclient : httpx.Client | None\n Optional preconfigured httpx client instance.\n\nRaises\n------\nOpenAPIClientError\n If:\n - No servers are defined and base_url is not provided\n - OpenAPI spec has no paths\n - An operation is missing operationId\n - Duplicate operationIds are detected\n - Required path parameters are missing\n - Required request body is missing\n\n Example\n-------\n```python\nfrom openapi_first import loader, client\n\nspec = loader.load_openapi(\"openapi.yaml\")\n\napi = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n)\n\n# Call operationId: getUser\nresponse = api.getUser(\n path_params={\"user_id\": 123}\n)\n\nprint(response.status_code)\nprint(response.json())\n\n# Call operationId: createUser\nresponse = api.createUser(\n body={\"name\": \"Bob\"}\n)\n\nprint(response.status_code)\n```",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nNotes:\n **Responsibilities:**\n\n - This client derives all callable methods directly from an OpenAPI 3.x specification. Each operationId becomes a method on the client instance.\n\n **Guarantees:**\n\n - One callable per operationId\n - Explicit parameters (path, query, headers, body)\n - No implicit schema inference or mutation\n - Returns raw `httpx.Response` objects\n - No response validation or deserialization\n\nExample:\n ```python\n from openapi_first import loader, client\n\n spec = loader.load_openapi(\"openapi.yaml\")\n\n api = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n )\n\n # Call operationId: getUser\n response = api.getUser(\n path_params={\"user_id\": 123}\n )\n\n print(response.status_code)\n print(response.json())\n ```",
"members": {
"spec": {
"name": "spec",

6
mcp_docs/modules/openapi_first.templates.model_app.json
View File

@@ -81,7 +81,7 @@
"kind": "class",
"path": "openapi_first.templates.model_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",
@@ -261,14 +261,14 @@
"kind": "function",
"path": "openapi_first.templates.model_app.test_model_app.load_openapi",
"signature": "<bound method Alias.signature of Alias('load_openapi', 'openapi_first.loader.load_openapi')>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nThe specification is parsed based on file extension and validated\nusing a strict OpenAPI schema validator. Any error results in an\nimmediate exception, preventing application startup.\n\nParameters\n----------\npath : str or pathlib.Path\n Filesystem path to an OpenAPI specification file.\n Supported extensions:\n - `.json`\n - `.yaml`\n - `.yml`\n\nReturns\n-------\ndict\n Parsed and validated OpenAPI specification.\n\nRaises\n------\nOpenAPISpecLoadError\n If the file does not exist, cannot be parsed, or fails\n OpenAPI schema validation."
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nArgs:\n path (str | Path):\n Filesystem path to an OpenAPI specification file. Supported extensions: .json, .yaml, .yml.\n\nReturns:\n dict[str, Any]:\n Parsed and validated OpenAPI specification.\n\nRaises:\n OpenAPISpecLoadError:\n If the file does not exist, cannot be parsed, or fails OpenAPI schema validation.\n\nNotes:\n **Guarantees:**\n\n - The specification is parsed based on file extension and validated using a strict OpenAPI schema validator\n - Any error results in an immediate exception, preventing application startup"
},
"OpenAPIClient": {
"name": "OpenAPIClient",
"kind": "class",
"path": "openapi_first.templates.model_app.test_model_app.OpenAPIClient",
"signature": "<bound method Alias.signature of Alias('OpenAPIClient', 'openapi_first.client.OpenAPIClient')>",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nThis client derives all callable methods directly from an OpenAPI 3.x\nspecification. Each operationId becomes a method on the client\ninstance.\n\nDesign principles\n-----------------\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation\n- Returns raw httpx.Response objects\n- No response validation or deserialization\n\nParameters\n----------\nspec : dict\n Parsed OpenAPI 3.x specification.\nbase_url : str | None\n Base URL of the target service. If omitted, the first entry\n in the OpenAPI `servers` list is used.\nclient : httpx.Client | None\n Optional preconfigured httpx client instance.\n\nRaises\n------\nOpenAPIClientError\n If:\n - No servers are defined and base_url is not provided\n - OpenAPI spec has no paths\n - An operation is missing operationId\n - Duplicate operationIds are detected\n - Required path parameters are missing\n - Required request body is missing\n\n Example\n-------\n```python\nfrom openapi_first import loader, client\n\nspec = loader.load_openapi(\"openapi.yaml\")\n\napi = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n)\n\n# Call operationId: getUser\nresponse = api.getUser(\n path_params={\"user_id\": 123}\n)\n\nprint(response.status_code)\nprint(response.json())\n\n# Call operationId: createUser\nresponse = api.createUser(\n body={\"name\": \"Bob\"}\n)\n\nprint(response.status_code)\n```",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nNotes:\n **Responsibilities:**\n\n - This client derives all callable methods directly from an OpenAPI 3.x specification. Each operationId becomes a method on the client instance.\n\n **Guarantees:**\n\n - One callable per operationId\n - Explicit parameters (path, query, headers, body)\n - No implicit schema inference or mutation\n - Returns raw `httpx.Response` objects\n - No response validation or deserialization\n\nExample:\n ```python\n from openapi_first import loader, client\n\n spec = loader.load_openapi(\"openapi.yaml\")\n\n api = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n )\n\n # Call operationId: getUser\n response = api.getUser(\n path_params={\"user_id\": 123}\n )\n\n print(response.status_code)\n print(response.json())\n ```",
"members": {
"spec": {
"name": "spec",

2
mcp_docs/modules/openapi_first.templates.model_app.main.json
View File

@@ -9,7 +9,7 @@
"kind": "class",
"path": "openapi_first.templates.model_app.main.OpenAPIFirstApp",
"signature": "<bound method Alias.signature of Alias('OpenAPIFirstApp', 'openapi_first.app.OpenAPIFirstApp')>",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\n`OpenAPIFirstApp` subclasses FastAPI and replaces manual route\nregistration with OpenAPI-driven binding. All routes are derived\nfrom the provided OpenAPI specification, and each operationId is\nmapped to a Python function in the supplied routes module.\n\nParameters\n----------\nopenapi_path : str\n Filesystem path to the OpenAPI 3.x specification file.\n This specification is treated as the authoritative API contract.\n\nroutes_module : module\n Python module containing handler functions whose names correspond\n exactly to OpenAPI operationId values.\n\n**fastapi_kwargs\n Additional keyword arguments passed directly to `fastapi.FastAPI`\n (e.g., title, version, middleware, lifespan handlers).\n\nRaises\n------\nOpenAPIFirstError\n If the OpenAPI specification is invalid, or if any declared\n operationId does not have a corresponding handler function.\n\nBehavior guarantees\n-------------------\n- No route can exist without an OpenAPI declaration.\n- No OpenAPI operation can exist without a handler.\n- Swagger UI and `/openapi.json` always reflect the provided spec.\n- Handler functions remain framework-agnostic and testable.\n\nExample\n-------\n```python\nfrom openapi_first import OpenAPIFirstApp\nimport app.routes as routes\n\napp = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n)\n```",
"docstring": "FastAPI application enforcing OpenAPI-first design.\n\nNotes:\n **Responsibilities:**\n\n - `OpenAPIFirstApp` subclasses FastAPI and replaces manual route registration with OpenAPI-driven binding\n - All routes are derived from the provided OpenAPI specification, and each operationId is mapped to a Python function in the supplied routes module\n\n **Guarantees:**\n\n - No route can exist without an OpenAPI declaration\n - No OpenAPI operation can exist without a handler\n - Swagger UI and `/openapi.json` always reflect the provided spec\n - Handler functions remain framework-agnostic and testable\n\nExample:\n ```python\n from openapi_first import OpenAPIFirstApp\n import app.routes as routes\n\n app = OpenAPIFirstApp(\n openapi_path=\"app/openapi.json\",\n routes_module=routes,\n title=\"Example Service\",\n )\n ```",
"members": {
"openapi": {
"name": "openapi",

4
mcp_docs/modules/openapi_first.templates.model_app.test_model_app.json
View File

@@ -23,14 +23,14 @@
"kind": "function",
"path": "openapi_first.templates.model_app.test_model_app.load_openapi",
"signature": "<bound method Alias.signature of Alias('load_openapi', 'openapi_first.loader.load_openapi')>",
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nThe specification is parsed based on file extension and validated\nusing a strict OpenAPI schema validator. Any error results in an\nimmediate exception, preventing application startup.\n\nParameters\n----------\npath : str or pathlib.Path\n Filesystem path to an OpenAPI specification file.\n Supported extensions:\n - `.json`\n - `.yaml`\n - `.yml`\n\nReturns\n-------\ndict\n Parsed and validated OpenAPI specification.\n\nRaises\n------\nOpenAPISpecLoadError\n If the file does not exist, cannot be parsed, or fails\n OpenAPI schema validation."
"docstring": "Load and validate an OpenAPI 3.x specification from disk.\n\nArgs:\n path (str | Path):\n Filesystem path to an OpenAPI specification file. Supported extensions: .json, .yaml, .yml.\n\nReturns:\n dict[str, Any]:\n Parsed and validated OpenAPI specification.\n\nRaises:\n OpenAPISpecLoadError:\n If the file does not exist, cannot be parsed, or fails OpenAPI schema validation.\n\nNotes:\n **Guarantees:**\n\n - The specification is parsed based on file extension and validated using a strict OpenAPI schema validator\n - Any error results in an immediate exception, preventing application startup"
},
"OpenAPIClient": {
"name": "OpenAPIClient",
"kind": "class",
"path": "openapi_first.templates.model_app.test_model_app.OpenAPIClient",
"signature": "<bound method Alias.signature of Alias('OpenAPIClient', 'openapi_first.client.OpenAPIClient')>",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nThis client derives all callable methods directly from an OpenAPI 3.x\nspecification. Each operationId becomes a method on the client\ninstance.\n\nDesign principles\n-----------------\n- One callable per operationId\n- Explicit parameters (path, query, headers, body)\n- No implicit schema inference or mutation\n- Returns raw httpx.Response objects\n- No response validation or deserialization\n\nParameters\n----------\nspec : dict\n Parsed OpenAPI 3.x specification.\nbase_url : str | None\n Base URL of the target service. If omitted, the first entry\n in the OpenAPI `servers` list is used.\nclient : httpx.Client | None\n Optional preconfigured httpx client instance.\n\nRaises\n------\nOpenAPIClientError\n If:\n - No servers are defined and base_url is not provided\n - OpenAPI spec has no paths\n - An operation is missing operationId\n - Duplicate operationIds are detected\n - Required path parameters are missing\n - Required request body is missing\n\n Example\n-------\n```python\nfrom openapi_first import loader, client\n\nspec = loader.load_openapi(\"openapi.yaml\")\n\napi = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n)\n\n# Call operationId: getUser\nresponse = api.getUser(\n path_params={\"user_id\": 123}\n)\n\nprint(response.status_code)\nprint(response.json())\n\n# Call operationId: createUser\nresponse = api.createUser(\n body={\"name\": \"Bob\"}\n)\n\nprint(response.status_code)\n```",
"docstring": "OpenAPI-first HTTP client (httpx-based).\n\nNotes:\n **Responsibilities:**\n\n - This client derives all callable methods directly from an OpenAPI 3.x specification. Each operationId becomes a method on the client instance.\n\n **Guarantees:**\n\n - One callable per operationId\n - Explicit parameters (path, query, headers, body)\n - No implicit schema inference or mutation\n - Returns raw `httpx.Response` objects\n - No response validation or deserialization\n\nExample:\n ```python\n from openapi_first import loader, client\n\n spec = loader.load_openapi(\"openapi.yaml\")\n\n api = client.OpenAPIClient(\n spec=spec,\n base_url=\"http://localhost:8000\",\n )\n\n # Call operationId: getUser\n response = api.getUser(\n path_params={\"user_id\": 123}\n )\n\n print(response.status_code)\n print(response.json())\n ```",
"members": {
"spec": {
"name": "spec",

33
mkdocs.yml
View File

@@ -8,12 +8,19 @@ theme:
text: Inter
code: JetBrains Mono
features:
- navigation.tabs
- navigation.sections
- navigation.expand
- navigation.top
- navigation.instant
- navigation.tracking
- navigation.indexes
- content.code.copy
- content.code.annotate
- content.tabs.link
- content.action.edit
- search.highlight
- search.share
- search.suggest
plugins:
- search
- mkdocstrings:
@@ -31,6 +38,30 @@ plugins:
annotations_path: brief
show_root_heading: true
group_by_category: true
show_category_heading: true
show_object_full_path: false
show_symbol_type_heading: true
markdown_extensions:
- pymdownx.superfences
- pymdownx.inlinehilite
- pymdownx.snippets
- admonition
- pymdownx.details
- pymdownx.superfences
- pymdownx.highlight:
linenums: true
anchor_linenums: true
line_spans: __span
pygments_lang_class: true
- pymdownx.tabbed:
alternate_style: true
- pymdownx.tasklist:
custom_checkbox: true
- tables
- footnotes
- pymdownx.caret
- pymdownx.tilde
- pymdownx.mark
site_name: openapi_first
nav:
- Home: index.md