Introduction to Altair GraphQL

Altair GraphQL is a powerful GraphQL client designed to help developers with testing and debugging GraphQL APIs. It provides features like query generation, autocompletion, and more to enhance your development workflow.

Getting Started with Altair GraphQL

First, let’s see a basic example of how to make a query with Altair GraphQL:

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

Mutation Example

Here’s how you can perform a mutation to add a new user:

  
  mutation {
    addUser(name: "John Doe") {
      id
      name
    }
  }
  

Subscription Example

Altair also supports GraphQL subscriptions, allowing you to listen to real-time updates:

  
  subscription {
    userAdded {
      id
      name
    }
  }
  

Custom Scalars Example

Altair GraphQL enables you to use custom scalars in your queries:

  
  {
    user(id: "1") {
      createdAt
    }
  }
  

Directives Example

Use directives in your queries for more control:

  
  query getUser($withAddress: Boolean!) {
    user(id: "1") {
      id
      name
      address @include(if: $withAddress)
    }
  }
  

File Upload Example

Altair allows file uploads during mutations:

  
  mutation($file: Upload!) {
    uploadFile(file: $file) {
      url
    }
  }
  

Setting Up Altair GraphQL Client in Your App

Here is an example of integrating Altair GraphQL Client in a simple app:

  
  import { createClient, DefaultController } from 'altair-graphql';

  const client = createClient({
    url: 'http://localhost:4000/graphql'
  });

  const query = \`
  query {
    user(id: "1") {
      id
      name
    }
  }
  \`;

  client.request(query).then(response => {
    console.log(response);
  }).catch(error => {
    console.error(error);
  });
  

This example demonstrates basic query execution using Altair GraphQL client within a JavaScript application.

Conclusion

Altair GraphQL is a versatile tool for any developer working with GraphQL APIs. It offers comprehensive features from query debugging to real-time subscriptions, making it a valuable asset in your development toolkit.

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