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apollo-datasource

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apollo-datasource

  • 0.300.0-preview.0
  • Source
  • npm
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What is apollo-datasource?

The apollo-datasource package is a toolkit for building data sources in Apollo Server. It provides a class-based approach to organizing your data fetching logic, allowing you to connect to different types of data sources, such as REST APIs or databases, in a structured and efficient manner. It is designed to work seamlessly with Apollo Server, making it easier to build GraphQL APIs.

What are apollo-datasource's main functionalities?

Creating a REST data source

This feature allows you to extend the RESTDataSource class to connect to a REST API. You can define methods to perform HTTP requests to your API endpoints. The example code demonstrates how to create a data source for fetching user data from a REST API.

class MyAPI extends RESTDataSource {
  constructor() {
    super();
    this.baseURL = 'https://myapi.com/';
  }

  async getUser(userId) {
    return this.get(`users/${userId}`);
  }
}

Caching responses

Apollo DataSource provides built-in support for caching responses from your data sources. This feature helps in reducing the load on your data sources and improving the performance of your GraphQL API. The example code shows how to cache the response of a REST API call for 60 seconds.

class MyAPI extends RESTDataSource {
  constructor() {
    super();
    this.baseURL = 'https://myapi.com/';
  }

  async getUser(userId) {
    return this.get(`users/${userId}`, undefined, {
      cacheOptions: { ttl: 60 }
    });
  }
}

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Package last updated on 01 Jun 2021

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