@aws-amplify/api-graphql

What is @aws-amplify/api-graphql?

@aws-amplify/api-graphql is a package that allows developers to interact with GraphQL APIs in a seamless manner. It is part of the AWS Amplify framework, which provides a set of tools and services to build secure, scalable mobile and web applications. This package specifically focuses on enabling GraphQL operations such as queries, mutations, and subscriptions.

What are @aws-amplify/api-graphql's main functionalities?

GraphQL Queries

This feature allows you to perform GraphQL queries to fetch data from your API. The code sample demonstrates how to define a query to list todos and execute it using the API.graphql method.

const query = `query ListTodos { listTodos { items { id name description } } }`;
API.graphql(graphqlOperation(query)).then(response => {
  console.log(response.data.listTodos.items);
});

GraphQL Mutations

This feature allows you to perform GraphQL mutations to modify data in your API. The code sample shows how to define a mutation to create a new todo item and execute it using the API.graphql method.

const mutation = `mutation CreateTodo { createTodo(input: { name: "New Todo", description: "This is a new todo" }) { id name description } }`;
API.graphql(graphqlOperation(mutation)).then(response => {
  console.log(response.data.createTodo);
});

GraphQL Subscriptions

This feature allows you to subscribe to real-time updates from your GraphQL API. The code sample demonstrates how to define a subscription to listen for new todo items being created and handle the incoming data.

const subscription = `subscription OnCreateTodo { onCreateTodo { id name description } }`;
const subscriptionClient = API.graphql(graphqlOperation(subscription)).subscribe({
  next: (response) => {
    console.log(response.value.data.onCreateTodo);
  }
});

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README

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