Django 6.1: http.JsonResponse

Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify django.http.JsonResponse in pkg:pypi/Django@6.1
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:pypi/Django@6.1
Demonstrate these symbols/APIs:
  - django.http.JsonResponse
Required runtime conditions:
  - ecosystem: golang
  - language: go
  - packageManager: go@1.26.5
  - runtime: go@1.26.5

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.

{"case":{"caseId":"case:sha256:566c52f507826596349f0000cd7347982fcbed3f4ad890d691d9de384c9ae626","contract":["django.http.JsonResponse serializes dictionary payloads to JSON with application/json content type.","JsonResponse enforces dictionary input when safe=True and allows arbitrary JSON-serializable types when safe=False.","json_dumps_params configures formatting, key sorting, and separators in the rendered response."],"goal":"verify django.http.JsonResponse in pkg:pypi/Django@6.1","kind":"HOW","packages":["pkg:pypi/Django@6.1"],"schemaVersion":1,"symbols":["django.http.JsonResponse"]},"contractCommand":["python","test/contract.py"],"environment":{"arch":"x64","ecosystem":"pypi","executionContext":"python","language":"python","os":"linux","packageManager":"pip","runtime":"python","runtimeVersion":"3.12","schemaVersion":1},"license":"MIT-0","packages":["pkg:pypi/Django@6.1"],"schemaVersion":1,"symbols":["django.http.JsonResponse"],"verifierAdapter":"python@1"}

asgiref==3.12.1
django==6.1
sqlparse==0.6.0

{
  "schemaVersion": 1,
  "goal": "verify django.http.JsonResponse in pkg:pypi/Django@6.1",
  "kind": "HOW",
  "packages": [
    "pkg:pypi/Django@6.1"
  ],
  "symbols": [
    "django.http.JsonResponse"
  ],
  "runtimeConditions": {
    "ecosystem": "golang",
    "language": "go",
    "packageManager": "go@1.26.5",
    "runtime": "go@1.26.5"
  }
}

import json
from django.conf import settings

if not settings.configured:
    settings.configure(
        ALLOWED_HOSTS=["testserver"],
        DEBUG=False,
        INSTALLED_APPS=[],
        SECRET_KEY="public-sample-secret-not-for-production",
    )

import django
django.setup()

from django.http import JsonResponse

# 1. Dict serialization and headers
response = JsonResponse({"status": "ok", "count": 42})
assert response.status_code == 200
assert response.headers["Content-Type"] == "application/json"
assert json.loads(response.content.decode("utf-8")) == {"status": "ok", "count": 42}

# 2. Safe parameter (safe=True forbids non-dict by default)
try:
    JsonResponse([1, 2, 3])
    raise AssertionError("Expected TypeError for non-dict with safe=True")
except TypeError as e:
    assert "safe parameter to False" in str(e)

# 3. Non-dict with safe=False
list_response = JsonResponse([1, 2, 3], safe=False)
assert json.loads(list_response.content.decode("utf-8")) == [1, 2, 3]

# 4. json_dumps_params customization
compact_response = JsonResponse(
    {"b": 2, "a": 1},
    json_dumps_params={"sort_keys": True, "separators": (",", ":")}
)
assert compact_response.content == b'{"a":1,"b":2}'

print("CONTRACT PASS: django.http.JsonResponse in Django 6.1")