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Gut all files as theyre going to be mainly replace with the spotify API
-124
src/components/home/playing/spotify/access.ts
-124
src/components/home/playing/spotify/access.ts
···
1
-
import fs from "fs/promises";
2
-
import {
3
-
SPOTIFY_CLIENT_ID,
4
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SPOTIFY_CLIENT_SECRET,
5
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SPOTIFY_REDIRECT_URI,
6
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} from "astro:env/server";
7
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import { SpotifyError } from "./errors";
8
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import { throws } from "/utils";
9
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import { isAuthToken, isRefreshToken } from "./types";
10
-
11
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/**
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* Get an access code which can be used to authenticate requests on behalf of the user.
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* @param userAuthCode Authentication code for the user (via callback). Uses the stored refresh token if not provided
14
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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
18
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*/
19
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export default async function getAccessCode(userAuthCode?: string) {
20
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const refreshToken = await fs
21
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.readFile("./.refreshToken", { encoding: "utf-8" })
22
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.catch((_) => undefined)
23
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.then((x) => (x === "" || x === "REFRESH_TOKEN" ? undefined : x));
24
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if (!(userAuthCode || refreshToken))
25
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throw new SpotifyError(
26
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"NO_AUTH",
27
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null,
28
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`No auth code or refresh token.
29
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Generate an auth code at \`/src/pages/_callback\`
30
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A refresh token will be generated from this auth token.`,
31
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);
32
-
33
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// prefer auth codes over refresh tokens
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// since the auth code may have updated scopes.
35
-
36
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const accessFrom:
37
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| {
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userAuthCode: string;
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}
40
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| {
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refreshToken: string;
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} = userAuthCode
43
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? { userAuthCode }
44
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: refreshToken
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? { refreshToken }
46
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: (undefined as never);
47
-
48
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const req = fetch("https://accounts.spotify.com/api/token", {
49
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method: "POST",
50
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headers: {
51
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"Content-Type": "application/x-www-form-urlencoded",
52
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Authorization: `Basic ${Buffer.from(SPOTIFY_CLIENT_ID + ":" + SPOTIFY_CLIENT_SECRET).toString("base64")}`,
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},
54
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body: new URLSearchParams({
55
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grant_type:
56
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"userAuthCode" in accessFrom ? "authorization_code" : "refresh_token",
57
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...("userAuthCode" in accessFrom
58
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? {
59
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code: accessFrom.userAuthCode,
60
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redirect_uri: SPOTIFY_REDIRECT_URI,
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}
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: {
63
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refresh_token: accessFrom.refreshToken,
64
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}),
65
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}).toString(),
66
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});
67
-
68
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return (
69
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req
70
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// if res isn't 200 handle it in the catch
71
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.then((res) => (res.ok ? res : throws(res)))
72
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// request is 200-299
73
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// json can throw SyntaxError in this case
74
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.then((res) => res.json())
75
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.then((res) => {
76
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if ("userAuthCode" in accessFrom) {
77
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if (isAuthToken(res)) {
78
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return {
79
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code: res.access_token,
80
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refresh: res.refresh_token,
81
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};
82
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}
83
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} else {
84
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if (isRefreshToken(res)) {
85
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return {
86
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code: res.access_token,
87
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refresh: res.refresh_token ?? accessFrom.refreshToken,
88
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};
89
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}
90
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}
91
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throw new SpotifyError(
92
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"INVALID_AUTH_RES",
93
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res,
94
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"Could not parse access token response",
95
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);
96
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})
97
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// res is now an access token and refresh token
98
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.then((res) => {
99
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fs.writeFile("./.refreshToken", res.refresh, { encoding: "utf-8" });
100
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return res.code;
101
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})
102
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.catch((err) => {
103
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// SyntaxError
104
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// Response
105
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// SpotifyError<"INVALID_AUTH_RES">
106
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if (err instanceof Response) console.error("access.ts", "Request failed:", err);
107
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else if (err instanceof SyntaxError)
108
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console.error("access.ts", "Response JSON failed", err);
109
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else if (err instanceof SpotifyError && err.code === "INVALID_AUTH_RES")
110
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console.error("access.ts", "Response malformed:", err);
111
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else if (err instanceof TypeError) {
112
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console.error("access.ts", "A network error occurred.", err);
113
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return new SpotifyError(
114
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"NETWORK_ERR",
115
-
err,
116
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"Network error occurred. Could not reach spotify servers or something else.",
117
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);
118
-
} else {
119
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console.error("access.ts", "Unhandled exception.");
120
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throw err;
121
-
}
122
-
})
123
-
);
124
-
}
-185
src/components/home/playing/spotify/api.ts
-185
src/components/home/playing/spotify/api.ts
···
1
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import getAccessCode from "./access";
2
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import { SpotifyError } from "./errors";
3
-
import { isNowPlaying, type nowPlaying } from "./types";
4
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import { isObj, throws } from "/utils";
5
-
6
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/**
7
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* Wrapper for authorizing a spotify API with default headers etc
8
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* @param url API endpoint to call. Pass a leading slash
9
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* @returns `Response`
10
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* @throws `SpotifyError<NETWORK_ERR>` when a fetch request fails
11
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* @throws `SpotifyError<NO_AUTH>` when auth fails
12
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* @throws `Response` on non 200-299 status codes
13
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*/
14
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export async function getSpotifyApi(url: string) {
15
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// get the access code
16
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const accessToken = await getAccessCode();
17
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// check its valid
18
-
if (!accessToken)
19
-
throw new SpotifyError(
20
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"NO_AUTH",
21
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null,
22
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"Failed to get access code. try using src/pages/_callback",
23
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);
24
-
25
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if (accessToken instanceof SpotifyError) throw accessToken;
26
-
27
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// fetch the api and throw on non 2** code
28
-
return fetch(`https://api.spotify.com/v1${url}`, {
29
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headers: {
30
-
Authorization: `Bearer ${accessToken}`,
31
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},
32
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})
33
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.catch((err) =>
34
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err instanceof TypeError
35
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? throws(
36
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new SpotifyError("NETWORK_ERR", err, "Spotify API request failed"),
37
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)
38
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: throws(err),
39
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)
40
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.then((res) => (res.ok ? res : throws(res)));
41
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}
42
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/**
43
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* Get the current playing track
44
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* @returns `nowPlaying`
45
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* @throws `SpotifyError` of NO_AUTH | UNHANDLED_API_ERR | INVALID_AUTH_RES | RATE_LIMITED | NO_CONTENT | MALFORMED_SPOTIFY_RES | NETWORK_ERR
46
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*/
47
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export async function spotifyNowPlaying() {
48
-
type success = nowPlaying;
49
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let res: (v: success) => void, rej: (v: unknown) => void;
50
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const output = new Promise<success>((_res, _rej) => {
51
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((res = _res), (rej = _rej));
52
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});
53
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const nowPlaying = getSpotifyApi("/me/player/currently-playing");
54
-
55
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// auth failed
56
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nowPlaying.catch((err) => {
57
-
if (err instanceof SpotifyError && err.code === "NO_AUTH") {
58
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console.error("api.ts", "Authentication failed:", err.human);
59
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rej(err);
60
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} else if (err instanceof SpotifyError && err.code === "NETWORK_ERR") {
61
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console.error("api.ts", "Network request failed:", err.human);
62
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rej(err)
63
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}
64
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});
65
-
66
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/**
67
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* request failed.
68
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* https://developer.spotify.com/documentation/web-api/concepts/api-calls
69
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* 400 Bad Request - The request could not be understood by the server due to malformed syntax. The message body will contain more information; see Response Schema.
70
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* 401 Unauthorized - The request requires user authentication or, if the request included authorization credentials, authorization has been refused for those credentials.
71
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* 403 Forbidden - The server understood the request, but is refusing to fulfill it.
72
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* 404 Not Found - The requested resource could not be found. This error can be due to a temporary or permanent condition.
73
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* 429 Too Many Requests - Rate limiting has been applied.
74
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* 500 Internal Server Error. You should never receive this error because our clever coders catch them all ... but if you are unlucky enough to get one, please report it to us through a comment at the bottom of this page.
75
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* 502 Bad Gateway - The server was acting as a gateway or proxy and received an invalid response from the upstream server.
76
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* 503 Service Unavailable - The server is currently unable to handle the request due to a temporary condition which will be alleviated after some delay. You can choose to resend the request again.
77
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*/
78
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nowPlaying.catch((res) => {
79
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switch (res.status) {
80
-
// handle req error
81
-
case 400: {
82
-
rej(new SpotifyError("UNHANDLED_API_ERR", res, "400: Bad request"));
83
-
break;
84
-
}
85
-
case 401: {
86
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rej(new SpotifyError("INVALID_AUTH_RES", res, "401: Unauthorized"));
87
-
break;
88
-
}
89
-
case 403: {
90
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rej(new SpotifyError("UNHANDLED_API_ERR", res, "403: Forbidden"));
91
-
break;
92
-
}
93
-
case 404: {
94
-
rej(new SpotifyError("UNHANDLED_API_ERR", res, "404: Not found"));
95
-
break;
96
-
}
97
-
case 429: {
98
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rej(new SpotifyError("RATE_LIMITED", res, "429: Rate Limited"));
99
-
break;
100
-
}
101
-
case 500: {
102
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rej(new SpotifyError("UNHANDLED_API_ERR", res, "500: Internal Error"));
103
-
break;
104
-
}
105
-
case 502: {
106
-
rej(new SpotifyError("UNHANDLED_API_ERR", res, "502: Bad Gateway"));
107
-
break;
108
-
}
109
-
case 503: {
110
-
rej(
111
-
new SpotifyError(
112
-
"UNHANDLED_API_ERR",
113
-
res,
114
-
"503: Service Unavaliable",
115
-
),
116
-
);
117
-
break;
118
-
}
119
-
}
120
-
});
121
-
122
-
/**
123
-
* request succeeded
124
-
* https://developer.spotify.com/documentation/web-api/concepts/api-calls
125
-
* 200 OK - The request has succeeded. The client can read the result of the request in the body and the headers of the response.
126
-
* 201 Created - The request has been fulfilled and resulted in a new resource being created.
127
-
* 202 Accepted - The request has been accepted for processing, but the processing has not been completed.
128
-
* 204 No Content - The request has succeeded but returns no message body.
129
-
*/
130
-
nowPlaying
131
-
.then((res) => {
132
-
if (res instanceof Error) return;
133
-
switch (res.status) {
134
-
// handle 200 codes
135
-
case 200: {
136
-
return res;
137
-
}
138
-
case 201: {
139
-
rej(new SpotifyError("UNHANDLED_API_ERR", res, "201: Created"));
140
-
return;
141
-
}
142
-
case 202: {
143
-
rej(new SpotifyError("UNHANDLED_API_ERR", res, "202: Accepted"));
144
-
return;
145
-
}
146
-
case 204: {
147
-
rej(new SpotifyError("NO_CONTENT", res, "204: No Content"));
148
-
return;
149
-
}
150
-
}
151
-
})
152
-
.then(async (resp) => {
153
-
// quit early if it rejected last time
154
-
if (!resp) return;
155
-
try {
156
-
const json = await resp
157
-
.json()
158
-
.then((res) =>
159
-
isObj(res) && "item" in res && isObj(res.item)
160
-
? res.item
161
-
: throws("Item field missing"),
162
-
);
163
-
164
-
// verify structure
165
-
if (!isNowPlaying(json)) {
166
-
rej(
167
-
new SpotifyError(
168
-
"MALFORMED_SPOTIFY_RES",
169
-
json,
170
-
"Response missing required fields.",
171
-
),
172
-
);
173
-
return;
174
-
}
175
-
176
-
res(json);
177
-
} catch (e) {
178
-
rej(
179
-
new SpotifyError("MALFORMED_SPOTIFY_RES", e, "Could not parse JSON."),
180
-
);
181
-
}
182
-
});
183
-
184
-
return output;
185
-
}
+3
-2
src/components/home/playing/spotify/client.ts
+3
-2
src/components/home/playing/spotify/client.ts
-52
src/components/home/playing/spotify/errors.ts
-52
src/components/home/playing/spotify/errors.ts
···
1
-
import { isObj } from "/utils";
2
-
3
-
export const spotErrs = [
4
-
"NO_AUTH",
5
-
"INVALID_AUTH_RES",
6
-
"UNHANDLED_API_ERR",
7
-
"RATE_LIMITED",
8
-
"NO_CONTENT",
9
-
"MALFORMED_SPOTIFY_RES",
10
-
"NETWORK_ERR"
11
-
] as const;
12
-
13
-
export class SpotifyError {
14
-
code: (typeof spotErrs)[number];
15
-
details: unknown;
16
-
human: string;
17
-
18
-
constructor(code: SpotifyError["code"], details: unknown, human: string);
19
-
constructor(error: SpotifyErrorInit);
20
-
constructor(
21
-
code: SpotifyError["code"] | SpotifyErrorInit,
22
-
details?: unknown,
23
-
human?: string,
24
-
) {
25
-
if (typeof code === "string") {
26
-
this.code = code;
27
-
this.details = details;
28
-
this.human = human ?? code;
29
-
return;
30
-
}
31
-
32
-
this.code = code.code;
33
-
this.details = code.details;
34
-
this.human = code.human ?? code.code;
35
-
}
36
-
}
37
-
38
-
export interface SpotifyErrorInit {
39
-
code: SpotifyError["code"];
40
-
details: unknown;
41
-
human?: string;
42
-
}
43
-
44
-
export const isSpotifyError = (
45
-
err: unknown,
46
-
): err is SpotifyError | SpotifyErrorInit =>
47
-
isObj(err) &&
48
-
"code" in err &&
49
-
typeof err.code === "string" &&
50
-
spotErrs.reduce((acc, cur) => acc || cur === err.code, false) &&
51
-
"details" in err &&
52
-
("human" in err ? typeof err.human === "string" : true);
+4
-5
src/components/home/playing/spotify/index.ts
+4
-5
src/components/home/playing/spotify/index.ts
-104
src/components/home/playing/spotify/types.ts
-104
src/components/home/playing/spotify/types.ts
···
1
-
import { isObj, type Prettify } from "/utils";
2
-
3
-
export type AuthToken = {
4
-
access_token: string;
5
-
token_type: "Bearer";
6
-
scope: string;
7
-
expires_in: number;
8
-
refresh_token: string;
9
-
};
10
-
11
-
export type RefreshToken = Prettify<
12
-
Omit<AuthToken, "refresh_token"> & { refresh_token?: string }
13
-
>;
14
-
15
-
export function isRefreshToken(obj: unknown): obj is RefreshToken {
16
-
return (
17
-
// validate is object
18
-
typeof obj === "object" &&
19
-
obj !== null &&
20
-
// validate properties
21
-
"access_token" in obj &&
22
-
typeof obj.access_token === "string" &&
23
-
"token_type" in obj &&
24
-
obj.token_type === "Bearer" &&
25
-
"scope" in obj &&
26
-
typeof obj.scope === "string" &&
27
-
"expires_in" in obj &&
28
-
typeof obj.expires_in === "number" &&
29
-
// either refresh token exists as string or not at all
30
-
(("refresh_token" in obj && typeof obj.refresh_token === "string") ||
31
-
!("refresh_token" in obj))
32
-
);
33
-
}
34
-
35
-
// auth token is just refresh with a non optional refresh_token
36
-
export function isAuthToken(obj: unknown): obj is AuthToken {
37
-
return isRefreshToken(obj) && "refresh_token" in obj;
38
-
}
39
-
40
-
type externalUrls = {
41
-
spotify: string;
42
-
};
43
-
44
-
const isExternalUrl = (obj: unknown): obj is externalUrls =>
45
-
isObj(obj) && "spotify" in obj && typeof obj.spotify === "string";
46
-
47
-
export type nowPlaying = null | {
48
-
type: "track";
49
-
name: string;
50
-
id: string;
51
-
52
-
external_urls: externalUrls;
53
-
54
-
album: {
55
-
external_urls: externalUrls;
56
-
name: string;
57
-
images: {
58
-
url: string;
59
-
}[];
60
-
};
61
-
artists: {
62
-
external_urls: externalUrls;
63
-
name: string;
64
-
}[];
65
-
};
66
-
67
-
export function isNowPlaying(obj: unknown): obj is nowPlaying {
68
-
return (
69
-
obj === null ||
70
-
(isObj(obj) &&
71
-
"type" in obj &&
72
-
obj.type === "track" &&
73
-
"name" in obj &&
74
-
typeof obj.name === "string" &&
75
-
"id" in obj &&
76
-
typeof obj.id === "string" &&
77
-
"external_urls" in obj &&
78
-
isExternalUrl(obj.external_urls) &&
79
-
"album" in obj &&
80
-
isObj(obj.album) &&
81
-
"external_urls" in obj.album &&
82
-
isExternalUrl(obj.album.external_urls) &&
83
-
"name" in obj.album &&
84
-
typeof obj.album.name === "string" &&
85
-
"images" in obj.album &&
86
-
Array.isArray(obj.album.images) &&
87
-
obj.album.images.reduce(
88
-
(acc, curr) =>
89
-
acc && isObj(curr) && "url" in curr && typeof curr.url === "string",
90
-
true,
91
-
) &&
92
-
"artists" in obj &&
93
-
Array.isArray(obj.artists) &&
94
-
obj.artists.reduce(
95
-
(acc, curr) =>
96
-
acc &&
97
-
"external_urls" in curr &&
98
-
isExternalUrl(curr.external_urls) &&
99
-
"name" in curr &&
100
-
typeof curr.name === "string",
101
-
true,
102
-
))
103
-
);
104
-
}