Google Cloud Vision API with Node.js example

vision.js

var gcloud = require('gcloud')({
  projectId: 'my-project',
  keyFilename: 'keyfile.json'
});

var vision = gcloud.vision();
vision.detectText('./image.jpg', function(err, text) {
  if (text.length > 0) {
    console.log('We found text on this image...');
  }
});