Api contract tester

Skill AtulPurohit/Antigravity-Awesome-Skills/plugins/dx-qa-automation/skills/api-contract-tester

Implement consumer-driven contract testing with Pact to ensure API compatibility.From its SKILL.md

Install

npx -y skills add AtulPurohit/Antigravity-Awesome-Skills --skill api-contract-tester

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SKILL.md

1.8 KB, 365 tokens by cl100k_base, as published. Nobody here has run it

API Contract Tester

Purpose

Prevent API breaking changes from reaching production by testing contracts between services.

Pact Contract Testing

Consumer Test

const { Pact, like, term } = require('@pact-foundation/pact');

const provider = new Pact({ consumer: 'WebApp', provider: 'UsersAPI', port: 1234 });

test('GET /users/:id returns user', async () => {
  await provider.addInteraction({
    state: 'user 123 exists',
    uponReceiving: 'a request for user 123',
    withRequest: { method: 'GET', path: '/users/123', headers: { Accept: 'application/json' } },
    willRespondWith: {
      status: 200,
      body: {
        id: '123',
        email: like('[email protected]'),
        name: like('John Doe'),
        role: term({ generate: 'user', matcher: '^(user|admin)$' }),
      },
    },
  });
  const user = await UserService.getUser('123');
  expect(user.id).toBe('123');
});

Provider Verification

test('verifies consumers', () =>
  new Verifier({
    provider: 'UsersAPI',
    providerBaseUrl: 'http://localhost:3000',
    pactUrls: ['./pacts/WebApp-UsersAPI.json'],
    stateHandlers: {
      'user 123 exists': () => db.users.upsert({ id: '123', email: '[email protected]' }),
    },
  }).verifyProvider()
);

Outputs

Consumer pact tests
Provider verification setup
Pact broker configuration
CI/CD contract testing integration
Contract versioning strategy

What ships with it

Read from the repository

Just SKILL.md. No reference files, no scripts.