Imports github.com/google/uuid github.com/gorilla/mux github.com/gorilla/securecookie github.com/gorilla/sessions github.com/patrickmn/go-cache github.com/spf13/viper github.com/zmb3/spotify/v2 github.com/zmb3/spotify/v2/auth golang.org/x/oauth2 Standard library imports context encoding/base64 encoding/json fmt io log net/http net/url os strings time