GraphQL Overview

GraphQL is a powerful and flexible data query language for your API, and a runtime for fulfilling those queries with your existing data. It allows you to request exactly the data you need, and nothing more.

Key Features

• Strong Typing: GraphQL uses a type system you can leverage to define how your data looks at the schema level.
• Query Flexibility: You can request any data you need in a single query, or break it down into multiple queries.
• Performance: With GraphQL, you can reduce the number of requests and amount of data transferred between the client and server.

Getting Started

To get started with GraphQL, you can follow our quick start guide.

Schema Definition

Your GraphQL schema defines the types, queries, mutations, and subscriptions available in your API. Here's an example of a simple schema:

type Query {
  user(id: ID!): User
}

type User {
  id: ID!
  name: String
  email: String
}

Querying Data

You can query data using GraphQL by sending a query to your server. Here's an example of a query that retrieves a user's information:

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

Mutations

Mutations allow you to perform write operations on your data. Here's an example of a mutation that creates a new user:

mutation {
  createUser(name: "Alice", email: "alice@example.com") {
    id
    name
    email
  }
}

Subscriptions

Subscriptions allow you to receive real-time updates about your data. Here's an example of a subscription that listens for changes to a user's email:

subscription {
  userUpdated(id: "1") {
    email
  }
}

GraphQL Schema

For more information on GraphQL, check out our detailed documentation.