The Artist data source

3. The Artist data source

🎯 Your goal for this step:

Add a new method to the data source class to retrieve artist-specific data

Artist data tasks

Review the SpotifyAPI data source class and its methodsReview the Spotify REST API endpointsIdentify an endpoint that retrieves data for an artist (and try it out! Check below for an artist ID to use.)Create an ArtistModel type in models.ts to represent the response from the REST API endpoint. Include the properties id, name, genres, uri, and followers. (Take special note of the shape followers takes in the response!)Define a new SpotifyAPI method that accepts an artistId and requests data from the endpointImport ArtistModel and use it to annotate the class method with its return type: a Promise that resolves to an ArtistModel type

Use the following artist ID when completing these tasks.

An artist ID

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Solution: The Artist data source

models.ts

// Represents an artist object returned by the REST API's artists endpoint
export type ArtistModel = {
  id: string;
  name: string;
  genres: string[];
  uri: string;
  followers: { total: number };
};

datasources/spotify-api.ts

import {
  PlaylistModel,
  TrackModel,
  SnapshotOrError,
  ArtistModel,
} from "../models";

export class SpotifyAPI extends RESTDataSource {
  baseURL = "https://spotify-demo-api-fe224840a08c.herokuapp.com/v1/";

  // ...other SpotifyAPI methods
  async getArtist(artistId: string): Promise<ArtistModel> {
    return this.get<ArtistModel>(`artists/${artistId}`);
  }
}

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