API Test

/**
 * API health probe with contract checks.
 * 
 * Purpose:
 * - Verify that the API is up and running (status 200)
 * - Check that the response headers are correct (Content-Type)
 * - Validate the structure and data types of the response body
 * 
 * @see https://playwright.dev/docs/api-testing
 */
import { expect, test } from '@playwright/test';

const API_URL = 'https://jsonplaceholder.typicode.com';

test.describe('API health check', () => {
  test('health endpoint responds with expected payload', async ({ request }) => {
    // Send GET request
    const response = await request.get(API_URL + '/posts/1');

    // Basic status checks
    expect(response.ok()).toBeTruthy();
    expect(response.status()).toBe(200);
    expect(response.headers()['content-type']).toContain('application/json');

    // Validate JSON structure
    const body = await response.json();
    expect(body).toMatchObject({ id: 1 });
    expect(typeof body.title).toBe('string');
  });
});

/**
 * API CRUD operations using Playwright's request context.
 * @see https://playwright.dev/docs/api-testing
 */
const API_URL = 'https://jsonplaceholder.typicode.com';

// GET - Retrieve resource
const getResponse = await request.get(API_URL + '/posts/1');

// POST - Create resource
const postResponse = await request.post(API_URL + '/posts', {
  data: { title: 'New Post', body: 'Content', userId: 1 }
});

// PUT - Update resource
const putResponse = await request.put(API_URL + '/posts/1', {
  data: { title: 'Updated', body: 'New content', userId: 1 }
});

// DELETE - Remove resource
const deleteResponse = await request.delete(API_URL + '/posts/1');

/**
 * Common API response assertions.
 */
// Status code
expect(response.status()).toBe(200);
expect(response.ok()).toBeTruthy();

// JSON body
const data = await response.json();
expect(data.id).toBeDefined();
expect(data).toMatchObject({ id: 1 });
expect(typeof data.title).toBe('string');

// Headers
expect(response.headers()['content-type']).toContain('application/json');

/**
 * Using project variables and secrets for API testing.
 * 
 * - getVariable() returns plain text configuration values
 * - getSecret() returns runtime-resolved secret values
 * 
 * @see /docs/app/automate/variables
 */
const baseUrl = getVariable('API_BASE_URL');
const apiKey = getSecret('API_KEY');

const response = await request.get(`${baseUrl}/users`, {
  headers: { 'Authorization': `Bearer ${apiKey}` }
});

expect(response.ok()).toBeTruthy();