API

Application programming interface.

When To Use

• HTTP services
• REST/GraphQL
• External data

What To Do

1. REST

2. Request

// Fetch
const res = await fetch('https://api.example.com/users')
const data = await res.json()

// Node
const axios = require('axios')
const res = await axios.get('https://api.example.com/users')

3. GraphQL

query {
  user(id: 1) {
    name
    email
  }
}

4. Auth

Role: API Developer Input: Endpoint Output: Data

Programmable.