Use custom domain for firebase function http calls

Question

Is there a way to use a custom domain for firebase cloud functions http hooks.

The default url for cloud functions looks something like this:

https://us-central1-my-awesome-app.cloudfunctions.net/ios-oauth/

And

I would like to make it look like this:

https://myawesomeapp.com/ios-oauth/

I looked around if there was some other people looking for the same solution and sure enough I found this:

https://stackoverflow.com/questions/43482224/firebase-cloud-functions-custom-domain

Answer 1

I have contacted firebase support to get some answers about this. And I was forwarded to this part in the documentation.

https://firebase.google.com/docs/hosting/functions#create_an_http_function_to_your_hosting_site

You can use your own domain with the firebase-cloud-functions. The way to do it is by using the firebase-hosting.

1. Connect custom domain to firebase hosting

2. Add custom function routing to firebase.json

    {
      "hosting": {
        "public": "public",
   
        // Add the following rewrites section *within* "hosting"
        "rewrites": [{
          "source": "/bigben", "function": "bigben"
        }]
   
      }
    }
   

3. Deploy to firebase