Sign in to Google and press "Go to console"
Create a new project and give it a name
Add an iOS app to your project
Now, we need to add the Firebase SDK
→ Head to the link above and check for what Pods you need to add to your project.
Add necessary Pods to your Podfile
→ Go to AppDelegate.swift file and add the code above.
→ You don't need to copy and paste the entire code. Just the parts that present in the AppDelegate file.