Hi,

You have a entity 'Firebase', which is only used to retrieve the data. I do not see any values your creating/inserting in that by using Create or Update method if entity. So you need to add some values if you want to retrieve the data else it will return empty. Also you should also do a empty check after retrieving the value to avoid the error.

Thanks
Pankaj

Hello, This might help you to get the solution Service Account File: 

The service account file is a JSON file containing the credentials required for server-to-server communication with Firebase services. 

To obtain this file - Go to the Firebase console (https://console.firebase.google.com/). > Select your project > Navigate to Project settings  >  Service accounts. > Under "Firebase Admin SDK," click on "Generate new private key" This will download a JSON file to your computer. 

You need to create a Firebase entity in OutSystems and configure it with the settings obtained from the Firebase console. > Create a new entity named "Firebase" or similar. > Add attributes to this entity such as Project ID, FCM sender ID, and Service Account File. > For the Service Account File attribute, it should be of the type Binary Data > Upload the JSON file downloaded from the Firebase console to populate this attribute. 

Ensure that you correctly set up the data type and attribute properties to handle binary data. 

Check that you are correctly mapping the attributes of the Firebase entity to the corresponding settings from the Firebase console. 

Verify that the Service Account File attribute is properly configured to store the binary data from the JSON file. 

Use the appropriate actions or integrations provided by the OutSystems Forge component you are using for Firebase Cloud Messaging. 

Monitor any error messages or logs to identify and troubleshoot any issues that arise during the push notification sending process.   

Cheers, 
Shriyash Dixit 

hii

i got error when i use this one
cannot read properties of undefined (reading 'OSFirebaseCloudMessaging')