Hi.
To do that, you need to adjust your Arduino sketch so that it authenticates with no authentication.
Check this library example: https://github.com/mobizt/FirebaseClient/blob/main/examples/App/AppInitialization/NoAuth/NoAuth.ino
You need to combine the library example with our example.
Regard,s
Sara

After that, I tried to use the same code to interface my ESP32 with Firebase, but I’m getting compiler errors because I didn’t include a user email and password. When I tried passing empty strings for the email and password, the code compiled and ran, but no data was sent to the Firebase Realtime Database.

Can someone help me identify what mistakes I might be making?

Hi.
Yes.

Thanks for letting me know.
There was (another) update right after we updated all guides.

We need to update them all again.

Thanks.

Regards,
Sara

Thanks for another great tutorial. Although I prefer to avoid anything Google… this is a great way to get started.

I found out that to retrieve the API-key, you need to select App Check and “build” a Web App. After that, there’s a piece of code with the API-key. Maybe you can look in to this a bit more and add it to the tutorial(s).

In the second sketch (reading from the RTDB), there’s a piece of code missing just before the includes:

#define ENABLE_USER_AUTH
#define ENABLE_DATABASE

Other than that it works like a charm 🙂

Regards,

Edmond

Hi.
The email authentication did not go away.
Where did you get that from?
I’m currently updating our Firebase eBook, and the email authentication is working fine.
Regards,
Sara

It is now updated.
Regards,
Sara

Hi.
Thanks for letting me know.
I recently updated almost all our Firebase Projects because of breaking changes in the library.

It seems the author of the library made more breaking changes. I’ll need to revise all my codes again.

Thanks.

Regards,
Sara

The above sketch will not compile in Arduino IDE without two defines (using FirebaseClient 2.1.5):

#define ENABLE_USER_AUTH
#define ENABLE_DATABASE

Just realized I installed Firebase ESP32 Client by Mobizt. I’ve now installed the correct library. The new compile has been running for quite a long time but I will let it run overnight to see if it finishes