Personal Site
Properly handle TypeError: fetch() failed in the spotify API
+26
-3
+9
-1
src/components/home/playing/spotify/access.ts
+9
-1
src/components/home/playing/spotify/access.ts
···
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* @param userAuthCode Authentication code for the user (via callback). Uses the stored refresh token if not provided
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* @returns `string`: access code to authorize requests
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* @returns `undefined`: failed to authenticate user.
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* @returns `SpotofyError<NETWORK_ERR>` when a network error occours and the fetch request fails.
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* @throws `SpotifyError<NO_AUTH>` when no refresh token is stored and no auth code is provided
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*/
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export default async function getAccessCode(userAuthCode?: string) {
···
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console.error("Response JSON failed", err);
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else if (err instanceof SpotifyError && err.code === "INVALID_AUTH_RES")
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console.error("Response malformed:", err);
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-
else {
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else if (err instanceof TypeError) {
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console.error("A network error occurred.", err);
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return new SpotifyError(
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"NETWORK_ERR",
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err,
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"Network error occurred. Could not reach spotify servers or something else.",
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);
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} else {
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console.error("Unhandled exception.");
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throw err;
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}
+16
-2
src/components/home/playing/spotify/api.ts
+16
-2
src/components/home/playing/spotify/api.ts
···
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* Wrapper for authorizing a spotify API with default headers etc
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* @param url API endpoint to call. Pass a leading slash
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* @returns `Response`
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* @throws `SpotifyError<NETWORK_ERR>` when a fetch request fails
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* @throws `SpotifyError<NO_AUTH>` when auth fails
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* @throws `Response` on non 200-299 status codes
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*/
···
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"Failed to get access code. try using src/pages/_callback",
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);
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if (accessToken instanceof SpotifyError) throw accessToken;
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// fetch the api and throw on non 2** code
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return fetch(`https://api.spotify.com/v1${url}`, {
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headers: {
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Authorization: `Bearer ${accessToken}`,
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},
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}).then((res) => (res.ok ? res : throws(res)));
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})
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.catch((err) =>
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err instanceof TypeError
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? throws(
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new SpotifyError("NETWORK_ERR", err, "Spotify API request failed"),
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)
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: throws(err),
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)
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.then((res) => (res.ok ? res : throws(res)));
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}
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/**
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* Get the current playing track
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* @returns `nowPlaying`
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* @throws `SpotifyError` of NO_AUTH | UNHANDLED_API_ERR | INVALID_AUTH_RES | RATE_LIMITED | NO_CONTENT | MALFORMED_SPOTIFY_RES
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* @throws `SpotifyError` of NO_AUTH | UNHANDLED_API_ERR | INVALID_AUTH_RES | RATE_LIMITED | NO_CONTENT | MALFORMED_SPOTIFY_RES | NETWORK_ERR
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*/
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export async function spotifyNowPlaying() {
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type success = nowPlaying;
···
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if (err instanceof SpotifyError && err.code === "NO_AUTH") {
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console.error("Authentication failed:", err.human);
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rej(err);
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} else if (err instanceof SpotifyError && err.code === "NETWORK_ERR") {
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console.error("Network request failed:", err.human);
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rej(err)
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}
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});
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