https://medium.com/%E5%BD%BC%E5%BE%97%E6%BD%98%E7%9A%84-swift-ios-app-%E9%96%8B%E7%99%BC%E6%95%99%E5%AE%A4/swift-practice-100-spotify-api-%E4%B8%B2%E6%8E%A5-%E5%8F%96%E5%BE%97spotyify-token%E6%AC%8A%E9%99%90-d069ceab6f95
