Simulating HTTP Responses for Frontend Development

Frontend without waiting for backend

In agile teams, frontend and backend are often developed in parallel. But the frontend needs data to render components, test UI states and validate integrations. Waiting for the backend creates bottlenecks — API mocking solves this on day one.

With httpdrop you have a real HTTP API running in minutes, with the same URL structure you'll use in production. When the backend is ready, just swap the base URL — no frontend code changes.

Simulating different UI states

// State: list with data
GET /api/users → 200
[{ "id": 1, "name": "Alice", "role": "Engineer" }]

// State: empty list
GET /api/users → 200  []

// State: server error
GET /api/users → 500
{ "error": "internal_server_error" }

// State: unauthorized
GET /api/users → 401
{ "error": "unauthorized", "message": "Invalid or expired token" }

// React integration
const API_BASE = 'https://httpdrop.com/mock/YOUR_ENDPOINT_ID';

const api = axios.create({ baseURL: API_BASE });
const { data } = await api.get('/api/users');