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Vishesh 'ironeagle' Bangotra
2026-03-08 00:41:19 +05:30
parent f03e250763
commit 80f8defcc2
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mcp_docs/modules/openapi_first.app.json
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@@ -2,7 +2,7 @@
"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",