Convert Binary Media Data to Buffer in Node JS - node.js

Question

I am using a third party api which returns the image in Binary Media Data format. After getting this data, I want to upload this to Google Cloud Storage. To do this, I need to convert this data into Buffer. I've tried multiple times but failed.
I am using NodeJS, npm request module to call api to save image to google cloud storage.
Here is the code:
var binaryData = data;
var bufferData = new Buffer(data);
request({
method: "POST",
url: '/endpoint/upload',
headers: {
'cache-control': 'no-cache',
'content-type': 'multipart/form-data; boundary=----WebKitFormBoundary7MA4YWxkTrZu0gW'
},
formData: {
filename: {
value: fileBase64,
options: {
filename: 'test.jpg',
contentType: 'image/jpeg'
}
},
}
}, function(err, response, body){
console.log(body);
})

Answer 1

Your post request should follow the template described in the documentation. My post request looks like this:
req = https.request({
method: "POST",
protocol: 'https:',
hostname: 'www.googleapis.com',
path: '/upload/storage/v1/b/[bucket-name]/o?uploadType=media&name=[file-name]',
headers: {
'content-type': 'image/png',
'content-length': Buffer.byteLength(data),
'authorizatoin': Bearer [bearer-token]
}
}, (res) => {
console.log(res.statusCode);
console.log(res.statusMessage);
console.log(res.headers);
}
);
It also looks like you’re lacking authentication. You need to use OAuth 2.0 for Google Cloud Storage. Make sure the Cloud Storage JSON API is enabled too.

Answer 2

You need to obtain your file as a stream. Here's a useful post that specifies how to do that with axios. Once you download the file in the server, you can get it as a Buffer with fs.readFile.