Google API Drive: Upload files using node.js but, How use the 1TB storage of a workspace account and not the 15GB of service account used to auth?

Question

I've developed a process on my server using Node.js for uploading several files to a google drive account.

1. First at all, I bought additional storage (1 TB) in my Google workspace account for having enough space. Let's call the Google account [email protected]

2. Then, I've created a service account under [email protected] and all credentials needed for authentication from node.js.

3. I've added the service id account with a Domain wide delegation for impersonation process.

4. I've defined all scopes supposed needed:

https://www.googleapis.com/auth/drive
https://www.googleapis.com/auth/drive.file
https://www.googleapis.com/auth/drive.appdata

5. And finally, I've added to JavaScript implementation all supposed needed too. The next code is only declaration of auth Google API from JavaScript implementation:

const { google } = require('googleapis');

// service account key file from Google Cloud console.
const KEYFILEPATH = 'upload-files-server-to-drive-7a5e1bf2dcbe.json';

// Request full drive access.
const SCOPES = ['https://www.googleapis.com/auth/drive','https://www.googleapis.com/auth/drive.file','https://www.googleapis.com/auth/drive.appdata'];

// Create a service account initialize with the service account key file and scope needed
const auth = new google.auth.GoogleAuth({
    keyFile: KEYFILEPATH,
    scopes: SCOPES
});

auth.subject = '[email protected]';

const driveService = google.drive({version: 'v3', auth});

module.exports = {
    driveService
}

6. The next function is inside a module and here is where the uploads occurs:

const upload = async ( params ) => new Promise (async ( resolve, reject ) => {
    const driveService = params.driveService;

    const fileMetadata = {
        'name': `${params.id_numero}${params.name}`,
        'parents':  [  params.parentId  ]
    };
    
    try {
        if (fs.existsSync(params.folder + params.name)) {
            //file exists
        }else{
            reject({
                result: "error",
                message:"El archivo no existe. No se puede subir nada. " 
            })
            return
        }
    } catch(err) {
        console.log(err)
        reject({
            result: "error",
            message: "Hubo un error" . err 
        })
        return
    }

    // Definición del archivo que se desea subir
    const  media = {
        mimeType: params.mimeType,
        body: fs.createReadStream(params.folder + params.name)
    };
    await driveService.files.create({
        resource: fileMetadata,
        media: media,
        fields: 'id'
    })
    .then( response => {
        console.log(response)
        switch(response.status){
            case 200:
                let file = response.result;
                resolve({
                    result: "success",
                    message:'Created File Id: ' +  response.data.id,
                    url : "http://drive.google.com/uc?export=view&id="+response.data.id,
                    id : response.data.id
                })
                break;
            default:
                console.error('Error creating the file, ' + response.errors);
                reject({
                    result: "error",
                    message:"Error al crear el archivo en Drive, " + response.errors
                })
                break;
        }
    })
    .catch( e => {
        console.log(e)
        reject({
            result: "error",
            message:"ERROR. No se puede acceder a DRIVE " ,
            error : e.errors
        })
        return
    })
})

The code above definitively works for uploading files to drive. However, although even [email protected] has enough space (100% free of 1TB) all uploaded files still being uploaded on the service account default storage, which one is only 15GB.

What am I missing for setting to upload on the desired storage?

Thanks for any help!

Documentation and references: https://developers.google.com/admin-sdk/directory/v1/guides/delegation

Google API scopes: https://developers.google.com/drive/api/v3/reference/files/create#auth

Answer 1

For the impersonation you could try:

const auth = new google.auth.GoogleAuth({
    keyFile: './service.json',
    scopes: [
      'https://www.googleapis.com/auth/contacts',...
    ],
    clientOptions: {
      subject: '[email protected]'
    },
  });

You would need to edit it depending on your code and what you are doing.