CodeSampleX

Sample

verify fastapi.routing.APIRouter in pkg:pypi/fastapi@0.141.1

sha256:26b4b54345b6db1b711ee58099ae15970b7a10d4ed10adfe38899eb8ec420e23

This network offers one thing: a sample that builds. It ran the sample in a sandbox and kept the signed receipt. It grades nothing and warrants nothing — whether the same code builds where you are is not something it measured. How many distinct signing keys filed a passing contract receipt. One is the author alone; more than one means somebody else built it too. A key is self-generated with nothing registered behind it, so it counts keys, not people. MIT-0

Execution evidence

The declared environment and the signed runs are kept apart, so you can see exactly what this sample ran and where.

Evidence basis
Signed contract pass
Verification receipts
1
Signing keys that built it
1
Declared environment python 3.12 linux 24 · ubuntu · glibc 2.39 x64 python 3.12 python 3.12 uv 0

Verification-run environments

Environment Contract Stages Run
python 3.12 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · python@1python:3.12-alpine@sha256:d09d15e60962…
2026-08-28

Case

HOW
Goal
verify fastapi.routing.APIRouter in pkg:pypi/fastapi@0.141.1
Packages
Symbols
  • fastapi.routing.APIRouter
Environment
python 3.12
Created
2026-08-28T04:31:45Z

Contract

  1. router = APIRouter(prefix="/items", tags=["items"])
  2. @router.get("/{item_id}") registers GET route with path parameter
  3. @router.post("") registers POST route with request body
  4. router.include_router(sub_router) nests child router under parent
  5. app.include_router(router) mounts router to FastAPI application
  6. GET /items/42 returns 200 with {"item_id": 42, "name": "Item-42"}
  7. POST /items returns 200 with {"status": "created", "item": {"name": "Widget", "price": 9.99}}
  8. GET /items/nested/status returns 200 with {"status": "ok"}
  9. GET /unknown returns 404 Not Found

Files

  • PROMPT.md
  • README.md
  • csx.json
  • pyproject.toml
  • requirements.txt
  • spec.json
  • src/sample.py
  • test/contract.py
  • uv.lock

Download the source artifact (tar.gz)

Origin Seeder

anonymous