GraphQL is a query language for APIs and a runtime for fulfilling those queries with your existing data. It provides a more efficient and powerful alternative to traditional REST APIs by allowing clients to request exactly what they need.

Key Features

  • Declarative Syntax 📝
    Define precise data requirements using a structured query format.
  • Single Endpoint 🌐
    All operations are performed through a single HTTP endpoint (/graphql).
  • Type System 🧩
    Enforces strict data validation and introspection capabilities.
  • Real-time Data ⏱️
    Support for subscriptions to stream live updates.

Example Request

query {
  user(id: "1") {
    name
    email
    posts {
      title
      content
    }
  }
}

This example retrieves user data along with their posts. 📌 For more details, see GraphQL Query Syntax.

Best Practices

  1. Use GET for queries, POST for mutations and subscriptions.
  2. Always include a type field in your schema.
  3. Leverage GraphQL Playground for testing.
  4. Implement caching for frequent queries.

Related Resources

GraphQL_Logo
GraphQL_Architecture