JSONPlaceholder

How to Use This API

1. Get a Single Post

https://jsonplaceholder.typicode.com/posts/1

Returns {"userId":1,"id":1,"title":"sunt aut facere...","body":"quia et suscipit..."}

2. Get All Posts by a User

https://jsonplaceholder.typicode.com/posts?userId=1

Filter by userId, id, or any field using query parameters.

3. Create a New Post (POST)

Test your POST form handler:

POST https://jsonplaceholder.typicode.com/posts
Content-Type: application/json

{"title":"foo","body":"bar","userId":1}

Returns 201 Created with your data and an id of 101.

4. JavaScript — Fetch and Display Posts

async function getPost(id) {
  const resp = await fetch(
    `https://jsonplaceholder.typicode.com/posts/${id}`
  );
  return resp.json();
}

async function getComments(postId) {
  const resp = await fetch(
    `https://jsonplaceholder.typicode.com/posts/${postId}/comments`
  );
  return resp.json();
}

// Display post 1 with its comments
Promise.all([getPost(1), getComments(1)]).then(([post, comments]) => {
  console.log(post.title);
  comments.forEach(c => console.log(' -', c.email, ':', c.body));
});

5. Python — Test CRUD Operations

import requests

BASE = 'https://jsonplaceholder.typicode.com'

# GET all users
users = requests.get(f'{BASE}/users').json()
print(f"Found {len(users)} users")

# POST a new todo
todo = {
    'userId': 1,
    'title': 'Test JSONPlaceholder',
    'completed': false
}
resp = requests.post(f'{BASE}/todos', json=todo)
created = resp.json()
print(f"Created todo #{created['id']}: {created['title']}")

# DELETE the todo
delete = requests.delete(f'{BASE}/todos/{created['id']}')
print(f"Deleted: {delete.status_code}")  # 200