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December 31, 2024 23:38
Script to generate Apple Client secret
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| // This is now built into `npx auth add apple`! :tada: | |
| // https://github.com/nextauthjs/cli/pull/10 | |
| #!/bin/node | |
| import { SignJWT } from "jose" | |
| import { createPrivateKey } from "crypto" | |
| if (process.argv.includes("--help") || process.argv.includes("-h")) { | |
| console.log(` | |
| Creates a JWT from the components found at Apple. | |
| By default, the JWT has a 6 months expiry date. | |
| Read more: https://developer.apple.com/documentation/sign_in_with_apple/generate_and_validate_tokens#3262048 | |
| Usage: | |
| node apple.mjs [--kid] [--iss] [--private_key] [--sub] [--expires_in] [--exp] | |
| Options: | |
| --help Print this help message | |
| --kid, --key_id The key id of the private key | |
| --iss, --team_id The Apple team ID | |
| --private_key The private key to use to sign the JWT. (Starts with -----BEGIN PRIVATE KEY-----) | |
| --sub, --client_id The client id to use in the JWT. | |
| --expires_in Number of seconds from now when the JWT should expire. Defaults to 6 months. | |
| --exp Future date in seconds when the JWT expires | |
| `) | |
| } else { | |
| const args = process.argv.slice(2).reduce((acc, arg, i) => { | |
| if (arg.match(/^--\w/)) { | |
| const key = arg.replace(/^--/, "").toLowerCase() | |
| acc[key] = process.argv[i + 3] | |
| } | |
| return acc | |
| }, {}) | |
| const { | |
| team_id, | |
| iss = team_id, | |
| private_key, | |
| client_id, | |
| sub = client_id, | |
| key_id, | |
| kid = key_id, | |
| expires_in = 86400 * 180, | |
| exp = Math.ceil(Date.now() / 1000) + expires_in, | |
| } = args | |
| /** | |
| * How long is the secret valid in seconds. | |
| * @default 15780000 | |
| */ | |
| const expiresAt = Math.ceil(Date.now() / 1000) + expires_in | |
| const expirationTime = exp ?? expiresAt | |
| console.log(` | |
| Apple client secret generated. Valid until: ${new Date(expirationTime * 1000)} | |
| ${await new SignJWT({}) | |
| .setAudience("https://appleid.apple.com") | |
| .setIssuer(iss) | |
| .setIssuedAt() | |
| .setExpirationTime(expirationTime) | |
| .setSubject(sub) | |
| .setProtectedHeader({ alg: "ES256", kid }) | |
| .sign(createPrivateKey(private_key.replace(/\\n/g, "\n")))}`) | |
| } |
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This is now built into
npx auth add apple! 🎉nextauthjs/cli#10