"function.js does not exist" when deploying a cloud function-CodePudding

I'm trying to deploy a 2nd generation cloud function as a zip file. The code is the following:

// index.js
const functions = require('@google-cloud/functions-framework');
    
functions.http('mp4Transcoder', (req, res) => {});

// dev-server.js
#!/usr/bin/env node

const express = require('express')
const app = express()
const router = express.Router()
const func = require('./index')
const bodyParser = require('body-parser')
    
app.use(bodyParser.raw({ type: 'application/octet-stream' }))
router.post('/transcoder', func.transcode)
router.options('/transcoder', func.transcode)
app.use('/', router)
    
// start the server
const port = 3030
const http = require('http')
app.set('port', port)
const server = http.createServer(app)
server.listen(port)

// package.json
{
  "name": "transcoder-cloud-function",
  "dependencies": {
    "@google-cloud/functions-framework": "^3.0.0"
  }
}

If I copy and paste this code and deploy the cloud function, it works. However, if I zip the three files and try to create uploading the zip file, the deployment fails with "function.js does not exist".

Any ideas of what I could try?

CodePudding user response：

If you are trying to deploy an Express app to Cloud Function then you should be passing the Express app instance to the Cloud Function and not use the function as a router. Try refactoring the code as shown below:

// index.js

const functions = require('@google-cloud/functions-framework');
const { app } = require('./dev-server.js');

functions.http('mp4transcoder', app);

// dev-server.js

const express = require('express')
const bodyParser = require('body-parser')

const app = express()
app.use(bodyParser.raw({ type: 'application/octet-stream' }))
app.use(bodyParser.json())

app.get('/', (req, res) => {
    res.send('Hello World!')
})
// app.use('/', router)

exports.app = app

// package.json
{
    "name": "transcoder-cloud-function",
    "dependencies": {
        "@google-cloud/functions-framework": "^3.0.0",
        "body-parser": "^1.20.1"
    }
}

Then try redeploying the function either by uploading the ZIP file or directly using gcloud CLI:

gcloud functions deploy mp4transcoder --gen2 --trigger-http --runtime=nodejs16

Also checkout Cloud Function for Firebase as its a bit easier to deploy that way.

CodePudding user response：

Ok, the answer was simpler than I expected: the zip file had the wrong file structure. Google Cloud is expecting the folder structure zip > your files, not zip > folder > your files, as was the case.