CodeSampleX

Sample

verify fastapi.Request in pkg:pypi/fastapi@0.141.1

sha256:60215a2d2f5dc9495fa1964652ee629b8ca442c2fb85f0be72b0e65e034c49d3

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 linux 24 · ubuntu · glibc 2.39 x64 python python pip

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.Request in pkg:pypi/fastapi@0.141.1
Packages
Symbols
  • fastapi.Request
  • fastapi.FastAPI
  • fastapi.testclient.TestClient
Environment
python
Created
2026-08-28T04:15:21Z

Contract

  1. assert fastapi.Request is starlette.requests.Request re-exported without modification
  2. assert endpoint parameter typed as Request receives the raw Request object without validation coercion
  3. assert request.method, request.url, and request.base_url provide normalized HTTP routing and scheme metadata
  4. assert request.url_for resolves endpoint URL by name with path parameters
  5. assert request.headers provides case-insensitive lookup for request headers
  6. assert request.query_params supports get for single values and getlist for multi-value query strings
  7. assert request.cookies parses cookie header into key-value pairs
  8. assert request.state stores and propagates custom request-scoped attributes set by middleware to endpoint handlers
  9. assert request.body and request.json parse payload and cache bytes across multiple reads without stream exhaustion
  10. assert request.scope provides direct access to underlying ASGI scope dictionary
  11. assert Request can be instantiated directly from an ASGI scope dictionary

Files

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

Download the source artifact (tar.gz)

Origin Seeder

anonymous