apollo-datasource-http

import { ApolloServer } from '@apollo/server'; import { startStandaloneServer } from '@apollo/server/standalone'; import { Pool } from 'undici'; import { HTTPDataSource } from 'apollo-datasource-http'; const typeDefs = `#graphql type Movie { id: ID! name: String } type Query { movie(id: ID!): Movie } type Mutation { createMovie(name: String!): Movie } `; const baseURL = 'https://movies-api.example.com'; // Replace with your actual API base URL const pool = new Pool(baseURL); class MoviesAPI extends HTTPDataSource { constructor(baseURL: string, pool: Pool) { super(baseURL, { pool }); } async createMovie(name: string) { return this.post('/movies', { body: { name } }); } async getMovie(id: string) { return this.get(`/movies/${id}`, { context: { tracingName: 'getMovie' }, requestCache: { maxTtl: 10 * 60, // 10min, will respond for 10min with the cached result maxTtlIfError: 30 * 60 // 30min, will respond with cached response in case of error } }); } } const resolvers = { Query: { movie: async (_, { id }, { dataSources }) => { return dataSources.moviesAPI.getMovie(id); } }, Mutation: { createMovie: async (_, { name }, { dataSources }) => { return dataSources.moviesAPI.createMovie(name); } } }; const server = new ApolloServer({ typeDefs, resolvers, }); startStandaloneServer(server, { listen: { port: 4000 }, context: async ({ req, res }) => ({ dataSources: { moviesAPI: new MoviesAPI(baseURL, pool), }, }), }).then(({ url }) => { console.log(`🚀 Server ready at ${url}`); });