How to Write and Retrieve a Temporary Binary File With Node Js?

Question

Issue

I am working with Google Text To Speech (TTS) in order to save a generated binary audio file to Google Cloud Storage (GCS).

Saving a local binary file d

Answer 1

Thanks @Doug_Stevenson and @AndersonMendes for the guidance!

Solution

I was including both the bucket id to my Google Cloud Storage and the file path in the same string which was the source of the error.

Bucket String

var bucket = storage.bucket('gs://[projectName].appspot.com');

GCS Upload Method

bucket.upload(tempFile, { destination: ("directory/someFolderName/" + fileName) }, (err, file) => {
        if (!err) {
          console.log('Audiocast uploaded!');
        } else {
          console.error('Audiocast upload error: ' + err.message);
        }
      });

Answer 2

Same answer, my code:

    const http = require('http');
    const fs = require('fs');
    const path = require('path');
    const os = require('os');

    var options = {
        destination: ('Audio/' + longLanguage + '/' + pronunciation + '/' + word + '.mp3'),
        contentType: 'audio/' + audioType
    };

    function oedPromise() {
        return new Promise(function(resolve, reject) {
          const tempFile = path.join(os.tmpdir(), (word + '.mp3'));
          const file = fs.createWriteStream(tempFile)
          http.get(apiURL, function(response) {
            response.pipe(file)
            .on('error', function(error) {
              console.error(error);
              reject(error);
            })
            .on('finish', function() {
              myBucket.upload(tempFile, options)
              .then(function(data) {
                return;
              })
              .catch(error => console.error(error));
            });
          });
        });
    }

Answer 3

I cannot comment due to lack of reputation points on this platform.

You need to delete your temp files:

https://firebase.google.com/docs/functions/tips#always_delete_temporary_files