How can I test GraphQL queries effectively?

How can I test GraphQL queries effectively?

You can test GraphQL queries using tools like Postman, GraphiQL, or Apollo Client. Would you like to know more about any specific tool?

What are the advantages of using Postman for GraphQL?

Postman provides a user-friendly interface, supports multiple environments, and allows you to save and organize your queries easily.

Can I automate testing for GraphQL queries?

Yes, you can automate testing using libraries like Jest or Mocha along with GraphQL testing utilities. Would you like a code example?

Yes, please provide a code example for Jest.

Here's a simple example:

const request = require('supertest');
const app = require('../app'); // Your Express app

test('fetches data', async () => {
  const response = await request(app)
    .post('/graphql')
    .send({ query: '{ users { id name } }' });
  expect(response.status).toBe(200);
  expect(response.body.data.users).toBeDefined();
});