Return a guestuser via username

GET /ext/{siteid}/api/v1/guestuser/u/{username}
Api key auth

Path parameters

GET /ext/{siteid}/api/v1/guestuser/u/{username} 
curl \
 --request GET 'https://api.spotipo.com/ext/{siteid}/api/v1/guestuser/u/{username}' \
 --header "Authentication-Token: $API_KEY"