Merge pull request #223 from ahmed-deftoner/recommendation-example

Recommendation example

examples/recommendation/recommendation.go

@@ -0,0 +1,69 @@
+package main
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"os"
+
+	spotifyauth "github.com/zmb3/spotify/v2/auth"
+
+	"golang.org/x/oauth2/clientcredentials"
+
+	"github.com/zmb3/spotify/v2"
+)
+
+func main() {
+	ctx := context.Background()
+	config := &clientcredentials.Config{
+		ClientID:     os.Getenv("SPOTIFY_ID"),
+		ClientSecret: os.Getenv("SPOTIFY_SECRET"),
+		TokenURL:     spotifyauth.TokenURL,
+	}
+	token, err := config.Token(ctx)
+	if err != nil {
+		log.Fatalf("couldn't get token: %v", err)
+	}
+
+	httpClient := spotifyauth.New().Client(ctx, token)
+	client := spotify.New(httpClient)
+
+	// store artist and genre info (upto 5 seed values allowed)
+	favorite_artists := []string{"Invent Animate", "Spiritbox", "Sleep Token"}
+	genres := []string{"metalcore"}
+	var artist_ids []spotify.ID
+
+	// find the ID for each artist and append it to list of artist ID's
+	for _, artist := range favorite_artists {
+		artists, err := client.Search(ctx, artist, spotify.SearchTypeArtist)
+
+		if err != nil {
+			log.Fatal(err)
+		}
+		artist_ids = append(artist_ids, artists.Artists.Artists[0].ID)
+	}
+
+	// store the values in seed
+	seeds := spotify.Seeds{
+		Artists: artist_ids,
+		Genres:  genres,
+	}
+
+	// declare track attributes for a more refined search
+	track_attributes := spotify.NewTrackAttributes().
+		MaxValence(0.4).
+		TargetEnergy(0.6).
+		TargetDanceability(0.6)
+
+	// get recommendations based on seed values
+	res, err := client.GetRecommendations(ctx, seeds, track_attributes, spotify.Country("US"), spotify.Limit(10))
+	if err != nil {
+		log.Fatal(err)
+	}
+
+	// display the recommended tracks along with artists
+	fmt.Println("\t---- Recommended Tracks ----")
+	for _, track := range res.Tracks {
+		fmt.Println(track.Name + " by " + track.Artists[0].Name)
+	}
+}