Installation

TYPE=
PROJECT_ID=
PRIVATE_KEY_ID=
PRIVATE_KEY=
CLIENT_EMAIL=
CLIENT_ID=
AUTH_URI=
TOKEN_URI=
AUTH_PROVIDER_X509_CERT_URL=
CLIENT_X509_CERT_URL=
UNIVERSE_DOMAIN=

To get those values is very simple! You need to head over to Firebase Console and create a new project.

Then on Project Overview open Project settings and select the Service accounts tab.

Click on Generate New Private Key, this will download a JSON file that contains all those keys you need here.

Save this file in safe place and paste all those in the repective match in the .env file. And here we're done for the service account part!

API_KEY=
AUTH_DOMAIN=
STORAGE_BUCKET=
MESSAGING_SENDER_ID=
APP_ID=
MEASUREMENT_ID=

Still inside Project settings in the Firebase Console select the General tab, it's the first one.

You should have a panel called Your apps if you haven't that yet now it's the time for you to create a web app.

So hit the Add app button and create a web app at the end of the creation process now in the same panel you should have the instructions that will contain a snippet with a constant called firebaseConfig, here we have all the keys you need here, just paste them in the respective matches on the .env file in the last step.

Lastly, enable the Authentication feature on Firebase. On the left under build menu select Authentication then hit the button Get Started. On Sign-in method tab select Email/Password as native provider and toggle to enable it. Done!

GOOGLE_CLIENT_ID=
GOOGLE_CLIENT_SECRET=
GOOGLE_REDIRECT_URL=
GOOGLE_API_KEY=
TIMEZONE=
GOOGLE_APP_PASSWORD=
GOOGLE_EMAIL=

Time to set up Google keys, this one is not that straighforward like the last ones but it's also very simple.

For the first 2 GOOGLE_CLIENT_ID and GOOGLE_CLIENT_SECRET you'll need to head over to credentials tab on Google Cloud Console under APIs & Services.

Select your project(the same one you already created on firebase console). Here you should already see the Firebase related keys under API Keys and Service Accounts but now you'll need to create the keys under OAuth 2.0 Client IDs.

Hit the button + CREATE CREDENTIALS -> OAuth client ID. The application type should be Web Application, input an name and go down to Authorized redirect URIs, for now use http://localhost:8383/google/redirect. Then hit CREATE button. Now you should see Client ID and Client Secret created for you that will fill the GOOGLE_CLIENT_ID and GOOGLE_CLIENT_SECRET respectively.

Now on Credentials you should have all three sections filled: API Keys(Created by Firebase), OAuth 2.0 Client IDs and Service Accounts(Created by Firebase).

Remember that you don't need to enable billing at this point yet.

But fist you'll need to set up the the OAuth consent screen, it's another tab on the left after setting up everything you should have those 2 keys.

GOOGLE_REDIRECT_URL key will have this same value: http://localhost:8383/google/redirect

GOOGLE_API_KEY will receive the same value you API_KEY you set before, we decided separate them because they're used in different contexts.

TIMEZONE is the value of the timezone you want your app to run (e.g. "America/Los_Angeles", "Europe/Rome").

For GOOGLE_APP_PASSWORD you'll need to sign in into Google Account and create an app password, this will allow the application to handle your calendar through Google Calendar API.

And finally GOOGLE_EMAIL is the email you used to create the App Password and is the one that will be used to send communications to the uers.

FE_URL=

This one is easy, for now set it as "http://localhost:3000" which the address our frontend is gonna run, later on you can update it when you go to production.

GPT_MODEL=
OPENAI_KEY=

GPT_MODEL is the model is gonna be used to call the OpenAI API, we recommend you to use gpt-4o, just keep in mind that better trained is the model, better will be the results!

In order to get the OPENAI_KEY you'll need to an OpenAI account created, so head over to their website on API Login. If it's the first time you're doing it you'll probably get a few dollars in credit to try it, nice han?

On the dashboard go to the API keys section and create a new secret key. That is the key you're paste here, remember to save it somewhere safe.