8 lines
2.2 KiB
JSON
8 lines
2.2 KiB
JSON
{
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"module": "spec_first_routing",
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"content": {
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"path": "spec_first_routing",
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"docstring": "# Spec-First Routing\n\n## Summary\n\nThe OpenAPI document is the single source of truth for the HTTP contract.\nHandlers are bound to it by name; there is no decorator router.\n\n---\n\n## The contract\n\n- `openapi.yaml` (or `.json`) declares paths, schemas, parameters, responses,\n and security.\n- A custom `operationId` names the handler function.\n- The framework (`openapi_first`) validates requests/responses against the\n spec and dispatches to the handler whose name equals `operationId`.\n\n## App bootstrap\n\n```python\n# main.py\nfrom openapi_first.app import OpenAPIFirstApp\n\napp = OpenAPIFirstApp(\n openapi_path=\"openapi.yaml\",\n routes_module=interfaces.openapi, # module whose namespace holds handlers\n title=\"<App> API\",\n version=\"0.1.0\",\n lifespan=lifespan,\n)\n```\n\n`lifespan` calls the composition root:\n\n```python\n@asynccontextmanager\nasync def lifespan(app):\n app.state.db_resources = await init()\n yield\n await shutdown()\n```\n\n## Handler registry\n\n`interfaces/openapi.py` is a flat re-export of every handler, so the framework\ncan resolve `operationId` across the whole app:\n\n```python\nfrom interfaces.item.routes import *\nfrom interfaces.wallet.routes import *\nfrom interfaces.progress.sse import *\n```\n\n## Handler shape\n\nHandlers are thin and synchronous with respect to business logic:\n\n```python\nasync def create_item(request: Request, body: dict):\n svc = request.app.state.db_resources[\"item_svc\"]\n return await svc.create(Item.model_validate(body))\n```\n\n## Conventions\n\n- `operationId` naming: `list_<resource>`, `create_<resource>`,\n `get_<resource>`, `update_<resource>`, `delete_<resource>`.\n- Read-only endpoints may use a cache decorator keyed on path + query + user.\n- Validation errors -> `400`; not found -> `404`; delete -> `204`.\n- Security is declared once in the spec and enforced by the framework; handlers\n contain no auth code.\n\n## Codegen\n\nThe `openapi_first` library can scaffold models and route stubs from the spec,\nand ships app templates (CRUD app, model app, service). Prefer codegen over\nhand-writing boilerplate.\n",
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"objects": {}
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}
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} |