I need to write a Cloud Function, and the sole permitted programming language is Node. Honestly I just have a slight idea about Node, but I am daring to write code based on some examples given in the GCP documentation. Here it is:
'use strict';
// [START functions_ocr_setup]
const config = require('./config.json');
// Get a reference to the Cloud Storage component
const storage = require('@google-cloud/storage')({ keyFilename: './pathtomyserviceaccount.json', projectId: 'projectId'
});
// Get a reference to the Cloud Vision API component
const vision = require('@google-cloud/vision')({ keyFilename: './pathtomyserviceaccount.json', projectId: 'projectId'
});
// [END functions_ocr_setup]
// [START functions_ocr_detect]
function detectText (file) { console.log('Haya vamos!'); return vision.readDocument(file) .then((results) => { const fullTextAnnotation = results[1].responses[0].fullTextAnnotation; console.log(fullTextAnnotation.text); }) .catch((err) => { console.error('ERRORes:', err); });
}
// [END functions_ocr_detect]
// [START functions_ocr_process]
/** * Cloud Function triggered by Cloud Storage when a file is uploaded. * * @param {object} event The Cloud Functions event. * @param {object} event.data A Google Cloud Storage File object. */
exports.processImage = function processImage (event) { let file = event.data; return Promise.resolve() .then(() => { if (file.resourceState === 'not_exists') { // This was a deletion event, we don't want to process this return; } if (!file.bucket) { throw new Error('Bucket not provided. Make sure you have a "bucket" property in your request'); } if (!file.name) { throw new Error('Filename not provided. Make sure you have a "name" property in your request'); } return detectText(storage.bucket(file.bucket).file(file.name)); }) .then(() => { console.log(`File ${file.name} processed.`); });
};
// [END functions_ocr_process]The file 'serviceaccount.json' is located in the same folder as the index.js (yes, it contains the function 'processImage' that I want GC to execute).
Looking in the log of the corresponding GC Funtion, I get the following error:
PartialFailureError: A failure occurred during this request
I've been doing some testing, and I intuit that the error is related to the 'readDocument' call... Once again, I recognize I'm a newcomer in Node, so I would really appreciate any hint or suggestion!!! Many thanks in advance!!!