How to get progress status while uploading files to Google Drive using NodeJs?

问题

Im trying to get progress status values while uploading files to google Drive using nodeJs.

controller.js

exports.post = (req, res) => {
//file content is stored in req as a stream 
// 1qP5tGUFibPNaOxPpMbCQNbVzrDdAgBD is the folder ID (in google drive) 
  googleDrive.makeFile("file.txt","1qP5tGUFibPNaOxPpMbCQNbVzrDdAgBD",req);

};

googleDrive.js

...
    makeFile: function (fileName, root,req) {

        var fileMetadata = {
            'name': fileName,
            'mimeType': 'text/plain',
            'parents': [root]
        };

        var media = {
            mimeType: 'text/plain',
            body: req
        };

        var r = drive.files.create({
            auth: jwToken,
            resource: fileMetadata,
            media: media,
            fields: 'id'
        }, function (err, file) {
            if (err) {
                // Handle error
                console.error(err);
            } else {
                // r => undefined
                console.log("Uploaded: " + r);
            }
        });


    },
...

i followed this link but got always an undefined value

回答1:

How about this modification?

Modification point:

• It used onUploadProgress.

Modified script:

makeFile: function (fileName, root,req) {
    var fileMetadata = {
        'name': fileName,
        'mimeType': 'text/plain',
        'parents': [root]
    };

    var media = {
        mimeType: 'text/plain',
        body: req
    };

    var r = drive.files.create({
        auth: jwToken,
        resource: fileMetadata,
        media: media,
        fields: 'id'
    }, {
      onUploadProgress: function(e) {
        process.stdout.clearLine();
        process.stdout.cursorTo(0);
        process.stdout.write(e.bytesRead.toString());
      },
    }, function (err, file) {
        if (err) {
            // Handle error
            console.error(err);
        } else {
            console.log("Uploaded: " + file.data.id);
        }
    });
},

Note:

• If you want to show the progression as "%", please use the file size.
• It was confirmed that this script worked at googleapis@33.0.0.

References:

• axios
• test of google/google-api-nodejs-client

In my environment, I'm using the script like above. But if this didn't work in your environment and if I misunderstand your question, I'm sorry.

来源：https://stackoverflow.com/questions/52026500/how-to-get-progress-status-while-uploading-files-to-google-drive-using-nodejs