Google Cloud Functions enable CORS?

Question

I just finished the Hello World Google Cloud Functions tutorial and received the following response headers:

Connection → keep-alive
Content-Length → 14
Cont         


        

Answer 1

I've just created webfunc. It's a lightweight HTTP server that supports CORS as well as routing for Google Cloud Functions. Example:

const { serveHttp, app } = require('webfunc')

exports.yourapp = serveHttp([
  app.get('/', (req, res) => res.status(200).send('Hello World')),
  app.get('/users/{userId}', (req, res, params) => res.status(200).send(`Hello user ${params.userId}`)),
  app.get('/users/{userId}/document/{docName}', (req, res, params) => res.status(200).send(`Hello user ${params.userId}. I like your document ${params.docName}`)),
])

In your project's root, simply add a appconfig.json that looks like this:

{
  "headers": {
    "Access-Control-Allow-Methods": "GET, HEAD, OPTIONS, POST",
    "Access-Control-Allow-Headers": "Origin, X-Requested-With, Content-Type, Accept",
    "Access-Control-Allow-Origin": "*",
    "Access-Control-Max-Age": "1296000"
  }
}

Hope this helps.