google drive api Node js - Quickstart

index.js

const fs = require('fs');
const readline = require('readline');
const { google } = require('googleapis');
//Drive API, v3
//https://www.googleapis.com/auth/drive	See, edit, create, and delete all of your Google Drive files
//https://www.googleapis.com/auth/drive.file View and manage Google Drive files and folders that you have opened or created with this app
//https://www.googleapis.com/auth/drive.metadata.readonly View metadata for files in your Google Drive
//https://www.googleapis.com/auth/drive.photos.readonly View the photos, videos and albums in your Google Photos
//https://www.googleapis.com/auth/drive.readonly See and download all your Google Drive files
// If modifying these scopes, delete token.json.
const SCOPES = ['https://www.googleapis.com/auth/drive'];
// The file token.json stores the user's access and refresh tokens, and is
// created automatically when the authorization flow completes for the first
// time.
const TOKEN_PATH = 'token.json';

// Load client secrets from a local file.
fs.readFile('credentials.json', (err, content) => {
    if (err) return console.log('Error loading client secret file:', err);
    // Authorize a client with credentials, then call the Google Drive API.
    //authorize(JSON.parse(content), listFiles);
    //authorize(JSON.parse(content), getFile);
    authorize(JSON.parse(content), uploadFile);
});

/**
 * Create an OAuth2 client with the given credentials, and then execute the
 * given callback function.
 * @param {Object} credentials The authorization client credentials.
 * @param {function} callback The callback to call with the authorized client.
 */
function authorize(credentials, callback) {
    const { client_secret, client_id, redirect_uris } = credentials.installed;
    const oAuth2Client = new google.auth.OAuth2(
        client_id, client_secret, redirect_uris[0]);

    // Check if we have previously stored a token.
    fs.readFile(TOKEN_PATH, (err, token) => {
        if (err) return getAccessToken(oAuth2Client, callback);
        oAuth2Client.setCredentials(JSON.parse(token));
        callback(oAuth2Client);//list files and upload file
        //callback(oAuth2Client, '0B79LZPgLDaqESF9HV2V3YzYySkE');//get file

    });
}

/**
 * Get and store new token after prompting for user authorization, and then
 * execute the given callback with the authorized OAuth2 client.
 * @param {google.auth.OAuth2} oAuth2Client The OAuth2 client to get token for.
 * @param {getEventsCallback} callback The callback for the authorized client.
 */
function getAccessToken(oAuth2Client, callback) {
    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,
    });
    rl.question('Enter the code from that page here: ', (code) => {
        rl.close();
        oAuth2Client.getToken(code, (err, token) => {
            if (err) return console.error('Error retrieving access token', err);
            oAuth2Client.setCredentials(token);
            // Store the token to disk for later program executions
            fs.writeFile(TOKEN_PATH, JSON.stringify(token), (err) => {
                if (err) return console.error(err);
                console.log('Token stored to', TOKEN_PATH);
            });
            callback(oAuth2Client);
        });
    });
}

/**
 * Lists the names and IDs of up to 10 files.
 * @param {google.auth.OAuth2} auth An authorized OAuth2 client.
 */
function listFiles(auth) {
    const drive = google.drive({ version: 'v3', auth });
    getList(drive, '');
}
function getList(drive, pageToken) {
    drive.files.list({
        corpora: 'user',
        pageSize: 10,
        //q: "name='elvis233424234'",
        pageToken: pageToken ? pageToken : '',
        fields: 'nextPageToken, files(*)',
    }, (err, res) => {
        if (err) return console.log('The API returned an error: ' + err);
        const files = res.data.files;
        if (files.length) {
            console.log('Files:');
            processList(files);
            if (res.data.nextPageToken) {
                getList(drive, res.data.nextPageToken);
            }

            // files.map((file) => {
            //     console.log(`${file.name} (${file.id})`);
            // });
        } else {
            console.log('No files found.');
        }
    });
}
function processList(files) {
    console.log('Processing....');
    files.forEach(file => {
        // console.log(file.name + '|' + file.size + '|' + file.createdTime + '|' + file.modifiedTime);
        console.log(file);
    });
}
function uploadFile(auth) {
    const drive = google.drive({ version: 'v3', auth });
    var fileMetadata = {
        'name': 'test22.jpg'
    };
    var media = {
        mimeType: 'image/jpeg',
        body: fs.createReadStream('test22.jpg')
    };
    drive.files.create({
        resource: fileMetadata,
        media: media,
        fields: 'id'
    }, function (err, res) {
        if (err) {
            // Handle error
            console.log(err);
        } else {
            console.log('File Id: ', res.data.id);
        }
    });
}
function getFile(auth, fileId) {
    const drive = google.drive({ version: 'v3', auth });
    drive.files.get({ fileId: fileId, fields: '*' }, (err, res) => {
        if (err) return console.log('The API returned an error: ' + err);
        console.log(res.data); c
    });
}

Big thanks for sharing this. I was struggling with the google authentication and your example have saved my life.

@rlunaro your welcome :)

Hi @Alhamou, and thanks for the gist!

I'm new to the Google API, so I have a question…

I'll be deploying to Elastic Beanstalk, so using 'token.json' and 'credentials.json' wouldn't be viable, and I was wondering what would you recommend instead?

The intention is allow the user to link their Google Account to the application I'm building, and then authorize access to their Drive.

How to automatically renew/refresh token_acess/token_refresh without taking your test app into production. Currently, the token expires every 7 days on test mode and I'd like a function/process to automatically take care of this. thanks