API Tester

API testing and monitoring skill. Test REST and GraphQL APIs, validate responses, and monitor uptime.

Test and monitor REST and GraphQL APIs with validation.

When to Use

• User wants to test an API endpoint
• Validate API responses
• Monitor API uptime
• Run API test suites

Features

• REST APIs: GET, POST, PUT, DELETE, PATCH
• GraphQL: Queries and mutations
• Validation: JSON Schema, assertions
• Monitoring: Uptime checks, alerts

Usage

Test REST endpoint

python3 scripts/api_test.py \
  --method GET \
  --url "https://api.example.com/users" \
  --expect-status 200

POST with body

python3 scripts/api_test.py \
  --method POST \
  --url "https://api.example.com/users" \
  --header "Content-Type: application/json" \
  --body '{"name": "Alice"}' \
  --expect-status 201

Validate response

python3 scripts/api_test.py \
  --method GET \
  --url "https://api.example.com/users/1" \
  --validate '{
    "type": "object",
    "required": ["id", "name"],
    "properties": {
      "id": {"type": "integer"},
      "name": {"type": "string"}
    }
  }'

Test GraphQL

python3 scripts/api_test.py \
  --graphql \
  --url "https://api.example.com/graphql" \
  --query '{ users { id name } }'

Run test suite

python3 scripts/api_test.py \
  --suite ./tests/api_tests.yaml

Monitor uptime

python3 scripts/api_test.py \
  --monitor \
  --url "https://api.example.com/health" \
  --interval 60

Output

{
  "success": true,
  "status_code": 200,
  "response_time_ms": 145,
  "response": {"id": 1, "name": "Alice"},
  "validation_passed": true
}