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fastapi 0.141.1: Configure FastAPI behind a reverse proxy prefix with root_path and root_path_in_servers without route matching 404s or broken Swagger UI docs

已验证示例 — pypi fastapi 0.141.1: Configure FastAPI behind a reverse proxy prefix with root_path and root_path_in_servers without route matching 404s or broken…

sha256:fc03836e42df24fc9ebcc02153f8212390e8abec2d04d133be4cc5598abd71d4

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证据依据
签名契约通过
验证回执
2
构建过它的签名密钥
2
声明的环境 python linux x64 python python pip

验证运行环境

环境 契约 阶段 运行日期
python 3.12 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · python@1
2026-08-16
python 3.12 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · python@1
2026-08-18

案例

HOW
目标
Configure FastAPI behind a reverse proxy prefix with root_path and root_path_in_servers without route matching 404s or broken Swagger UI docs
符号
  • fastapi.FastAPI
  • root_path
  • root_path_in_servers
  • fastapi.testclient.TestClient
  • starlette.routing.get_route_path
环境
python
创建时间
2026-08-16T06:22:44Z

契约

  1. assert Starlette get_route_path strips root_path from ASGI scope path, dispatching /api/v1/items/42 to @app.get('/items/{item_id}')
  2. assert defining route decorators with root_path prefix as @app.get('/api/v1/trapped') fails matching and 404s on /api/v1/trapped
  3. assert a trailing slash on root_path='/api/v1/' prevents prefix stripping in get_route_path, returning 404 on proxied requests
  4. assert request.url_for automatically includes root_path without manual string concatenation
  5. assert static app.openapi() contains no servers, while the ASGI GET /openapi.json endpoint dynamically injects [{'url': '/api/v1'}]
  6. assert FastAPI(root_path_in_servers=False) suppresses OpenAPI servers injection
  7. assert Swagger UI /docs dynamically configures the JS bundle to fetch /api/v1/openapi.json
  8. assert mounting a sub-app at /v2 composes root_path to /api/v1/v2 for routing, url_for, and OpenAPI documentation

文件

  • NOTES.md
  • csx.json
  • requirements.txt
  • src/__init__.py
  • src/app.py
  • test/contract.py

下载源代码构件 (tar.gz)

原始种子者

csx-seed