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ogawa0071/getOAuth2Client.ts

Created January 10, 2021 16:33
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Google APIs Node.js oAuth2Client
Raw
getOAuth2Client.ts
import * as fs from "fs";
import * as readline from "readline";
import { google } from "googleapis";
const SCOPES = [
"https://www.googleapis.com/auth/youtube",
];
const TOKEN_PATH = "token.json";
export async function getOAuth2Client() {
const credentials = JSON.parse(
await fs.promises.readFile("credentials.json", "utf8")
);
const { client_id, client_secret, redirect_uris } = credentials.installed;
const oAuth2Client = new google.auth.OAuth2(
client_id,
client_secret,
redirect_uris[0]
);
try {
const token = await fs.promises.readFile(TOKEN_PATH, "utf8");
oAuth2Client.setCredentials(JSON.parse(token));
} catch {
const authUrl = oAuth2Client.generateAuthUrl({
access_type: "offline",
scope: SCOPES,
});
console.log("Authorize this app by visiting this url:", authUrl);
const rl = readline.createInterface({
input: process.stdin,
output: process.stdout,
});
const code = await new Promise<string>((resolve) => {
rl.question("Enter the code from that page here: ", (code) => {
rl.close();
resolve(code);
});
});
const token = (await oAuth2Client.getToken(code)).tokens;
oAuth2Client.setCredentials(token);
await fs.promises.writeFile(TOKEN_PATH, JSON.stringify(token));
console.log("Token stored to", TOKEN_PATH);
}
return oAuth2Client;
}
Raw
oAuthClient.ts
import { getOAuth2Client } from "./getOAuth2Client";
(async () => {
const oAuth2Client = await getOAuth2Client();
})();
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