I am using Google Analytics for years for my iOS apps and was truly satisfied with it. For my regret Google is sunsetting Google Analytics later this year so I am switching to Firebase API so I can keep tracking my apps. I already done most of the integration work and can see the events appearing in Firebase console. However, I can't see custom parameter values but only event count.
For example, sending event named add_book and adding parameter named isbn with value of 1234, I will be able to see in the console only the number of times that add_book arrived and also that it contains an isbn parameter. However, it seems there is no way to view the value (i.e. 1234) of the isbn parameter. I registered the isbn parameter for the add_book event as required. Am I missing something?
Does having the full functionality of the sunsetting Google Analytics (including advanced filtering + regex filters, etc.), means I should use both Firebase Analytics and BigQuery together?
By the way, I linked Firebase Analytics with BigQuery and exported the data as suggested by Firebase Analytics, but I can't see any Analytics tables yet in BigQuery. Do I need to allow several hours before I can view the exported data?
In your event overview from Firebase Console you can enable parameter reporting for individual events. The option is found in the 3 dot overflow menu. You can do that for up to 10 unique text parameters and 40 unique numeric parameters.
Beyond those limits or for more control BigQuery is the way to go. And yes you need to wait for your first data in BigQuery. They populate a new table with one days data every day once.