Apollo Data Source Spotify

Apollo Data Source Spotify encapsulates fetching data from the Spotify API.

Getting Started

$3

npm install apollo-datasource-rest dataloader graphql

$3

``js
import { SpotifyAPI } from 'apollo-datasource-spotify';

const apollo = new ApolloServer({
context: ({ req }) => ({
authorization: req.headers.authorization,
}),
dataSources: () => ({
spotify: new SpotifyAPI(),
}),
});
`

$3

`js
export const resolvers = {
Query: {
me(root, args, context) {
return context.dataSources.spotify.me();
},
},
};
`

#### Batch Requests

`js
import { batch } from 'apollo-datasource-spotify';

const resolver = async (root, args, context) {
await batch({
limit: 2500,
request: (params) => dataSources.spotify.savedTracks(params),
callback: async (savedTracks) => {
console.log(savedTracks);
},
});

return;
};
`

$3

If you run into issues with rate-limiting, try throttling requests with something
like bottleneck.

npm install --save bottleneck

`js
import SpotifyAPI from 'apollo-datasource-rest';
import Bottleneck from 'bottleneck';

class ThrottledSpotifyAPI extends SpotifyAPI {
constructor() {
super();

this.limiter = new Bottleneck({
reservoir: 100,
reservoirRefreshAmount: 100,
reservoirRefreshInterval: 60 * 1000,
maxConcurrent: 1,
minTime: 333,
});

this.get = this.limiter.wrap(this.get.bind(this));
this.post = this.limiter.wrap(this.post.bind(this));
this.put = this.limiter.wrap(this.put.bind(this));
this.delete = this.limiter.wrap(this.delete.bind(this));
}
}
`

Spotify GraphQL Schema

To use the Spotify GraphQL schema implement your own
custom scalar
JSON type or use graphql-type-json.

$3

npm install --save graphql-type-json

$3

`js
import { ApolloServer, gql } from 'apollo-server';
import { SpotifyAPI, typeDefs, resolvers } from 'apollo-datasource-spotify';
import GraphQLJSON from 'graphql-type-json';

const apollo = new ApolloServer({
context: ({ req }) => ({
authorization: req.headers.authorization,
}),
dataSources: () => ({
spotify: new SpotifyAPI(),
}),
typeDefs: gql(typeDefs()),
resolvers: resolvers({ JSON: GraphQLJSON }),
});
`

$3

`
query {
spotify {
getAlbum(id: "42j41uUwuHZT3bnedq2XtM") {
id
name
}
getAlbumsTracks(id: "42j41uUwuHZT3bnedq2XtM") {
items {
... on SimplifiedTrackObject {
id
name
preview_url
artists {
id
name
}
}
}
}
}
}
``