How to create a Spotify playlist using react? - reactjs

Question

I am trying to create a playlist on localhost and then have the list I created to be saved to Spotify. Can someone help why Save to Spotify button might not be working? Everything else seems fine, I have doubts about the fetching part I used but can't figure out what the issue might be.
Screenshot of the page:
And there is the Spotify.js code:
import { SearchBar } from '../components/SearchBar/SearchBar';
const clientId = 'I've put my client id';
const redirectUri = 'http://localhost:3000/callback/';
let accessToken;
const Spotify = {
getAccessToken() {
if (accessToken) {
return accessToken;
}
//check for access token match
const accessTokenMatch = window.location.href.match(/access_token=([^&]*)/);
const expiresInMatch = window.location.href.match(/expires_in=([^&]*)/);
if (accessTokenMatch && expiresInMatch) {
accessToken = accessTokenMatch[1];
let expiresIn = Number(expiresInMatch[1]);
//This clears the parameters, allowing to grab new access token then it expires
window.setTimeout(() => (accessToken = ''), expiresIn * 1000);
window.history.pushState('Access Token', null, '/');
return accessToken;
} else {
const accessUrl = `https://accounts.spotify.com/authorize?client_id=${clientId}&response_type=token&scope=playlist-modify-public&redirect_uri=${redirectUri}`;
window.location = accessUrl;
}
},
search(term) {
const accessToken = Spotify.getAccessToken();
return fetch(`https://api.spotify.com/v1/search?type=track&q=${term}`, {
headers: { Authorization: `Bearer ${accessToken}` },
})
.then((response) => {
return response.json();
})
.then((jsonResponse) => {
if (!jsonResponse.tracks) {
return [];
}
return jsonResponse.tracks.items.map((track) => ({
id: track.id,
name: track.name,
artists: track.artists[0].name,
album: track.album.name,
uri: track.uri,
}));
});
},
savePlaylist(name, trackUris) {
if (!name || !trackUris.length) {
return;
}
const accessToken = Spotify.getAccessToken();
const headers = { Authorization: `Bearer ${accessToken}` };
let userId;
return fetch(`https://api.spotify.com/v1/me`, { headers: headers })
.then((response) => response.json())
.then((jsonResponse) => (userId = jsonResponse.id))
.then((userId) => {
return fetch(`/v1/users/${userId}/playlists`, {
headers: headers,
method: 'POST',
body: JSON.stringify({ name: name }),
})
.then((response) => response.json())
.then((jsonResponse) => {
const playlistId = jsonResponse.id;
return fetch(`/v1/users/${userId}/playlists/${playlistId}/tracks`, {
headers: headers,
method: 'POST',
body: JSON.stringify({ uris: trackUris }),
});
});
});
},
};
export default Spotify;
Here is the screenshot of Element > Console:

Answer 1

I had an fetch error, updated as below and working now.
let accessToken;
const Spotify = {
getAccessToken() {
if (accessToken) {
return accessToken;
}
//check for access token match
const accessTokenMatch = window.location.href.match(/access_token=([^&]*)/);
const expiresInMatch = window.location.href.match(/expires_in=([^&]*)/);
if (accessTokenMatch && expiresInMatch) {
accessToken = accessTokenMatch[1];
let expiresIn = Number(expiresInMatch[1]);
//This clears the parameters, allowing to grab new access token then it expires
window.setTimeout(() => (accessToken = ''), expiresIn * 1000);
window.history.pushState('Access Token', null, '/');
return accessToken;
} else {
const accessUrl = `https://accounts.spotify.com/authorize?client_id=${clientId}&response_type=token&scope=playlist-modify-public&redirect_uri=${redirectUri}`;
window.location = accessUrl;
}
},
search(term) {
const accessToken = Spotify.getAccessToken();
return fetch(`https://api.spotify.com/v1/search?type=track&q=${term}`, {
headers: { Authorization: `Bearer ${accessToken}` },
})
.then((response) => {
return response.json();
})
.then((jsonResponse) => {
if (!jsonResponse.tracks) {
return [];
}
return jsonResponse.tracks.items.map((track) => ({
id: track.id,
name: track.name,
artists: track.artists[0].name,
album: track.album.name,
uri: track.uri,
}));
});
},
savePlaylist(name, trackUris) {
if (!name || !trackUris.length) {
return;
}
const accessToken = Spotify.getAccessToken();
const headers = { Authorization: `Bearer ${accessToken}` };
let userID;
return fetch('https://api.spotify.com/v1/me', { headers: headers })
.then((response) => response.json())
.then((jsonResponse) => {
userID = jsonResponse.id;
return fetch(`https://api.spotify.com/v1/users/${userID}/playlists`, {
method: 'POST',
headers: headers,
body: JSON.stringify({ name: name }),
})
.then((response) => response.json())
.then((jsonResponse) => {
const playlistID = jsonResponse.id;
return fetch(
`https://api.spotify.com/v1/users/${userID}/playlists/${playlistID}/tracks`,
{
method: 'POST',
headers: headers,
body: JSON.stringify({ uris: trackUris }),
}
);
});
});
}, // end of savePlaylist method
}; // end of Spotify object
export default Spotify;