Between all of them there are particularly one that I didn't understand:
B4X:
Public Sub confirmEmailVerification(oobCode As String) As ResumableSub
Dim url As String = $"https://identitytoolkit.googleapis.com/v1/accounts:update?key=${API_KEY}"$
Dim json As JSONGenerator
json.Initialize(CreateMap("oobCode":oobCode))
Dim j As HttpJob : j.Initialize("",Me)
j.PostString(url,json.ToString)
j.GetRequest.SetContentType("application/json")
Wait For (j) JobDone(j As HttpJob)
Return GenerateResult(j)
End Sub
What is the oobCode ? In the Firebase forum is very difficul search the documentation about it.
Please, Are here someone who can explains what is it and how custom it, or at least where find the complete reference?