gistfile1.txt

	savePlayList(playListName, trackURIs) {
		if (!playListName || !trackURIs.length) {
			return;
		}
		const newAccessToken = this.getAccessToken();
		let userId;
		let playListId;
		const header = {
			Authorization: `Bearer ${newAccessToken}`
		};

		return fetch('https://api.spotify.com/v1/me', {
			headers: header
		})
			.then(response => {
				if (response.ok) {
					return response.json();
				}
				throw new Error('Error - User ID Obtain Failed!');
			})
			.then(jsonResponse => {
				userId = jsonResponse.id;
			})
			.then(() => {
				return fetch(`https://api.spotify.com/v1/users/${userId}/playlists`, {
					method: 'POST',
					headers: header,
					body: JSON.stringify({ name: playListName })
				});
			})
			.then(response => {
				if (response.ok) {
					return response.json();
				}
				throw new Error('Error - Playlist ID Obtain Failed!');
			})
			.then(jsonResponse => {
				playListId = jsonResponse.id;
			})
			.then(() => {
				return fetch(`https://api.spotify.com/v1/users/${userId}/playlists/${playListId}/tracks`, {
					method: 'POST',
					headers: header,
					body: JSON.stringify({ uris: trackURIs })
				});
			})
			.then(response => {
				if (response.ok) {
					return response.json();
				}
				throw new Error('Request failed!');
			})
			.then(jsonResponse => {
				console.log(jsonResponse);
			});
	}