Deploy backend

Activate functions service on Firebase

• go to Functions in the left menu on Firebase

• then start to use it by clicking «upgrade» button and then skip modal and click «purchase»

• close modal

• click «get started»

• click «continue» in modal, click «finish» on next step in modal

Set up a project

Get your project id from settings of your Firebase project

Change project id in .firebaserc in default property to your project name from firebase project settings:

{
  "projects":
    {
      "default": "[PASTE YOUR PROJECT ID]"
    }
}

Deploy cloud functions

At first, let's setup firebase CLI as mentioned in official docs:

$ npm install -g firebase-tools

Then, move to functions folder:

$ cd functions

And make deploy:

$ firebase deploy --only functions

Adding host name for calling functions from front-end

Go to functions in Firebase and copy host name from function url.

Then, paste it into to hostname const:

src/config/config.ts