B4J Question FirebaseNotifications - missing an Authentication Key

woniol · Oct 10, 2018

Hi,
I'm using Firebase Notifications to send notifications from B4J server to my Android(B4A) app.
It all done according to this example: https://www.b4x.com/android/forum/t...-messages-firebase-cloud-messaging-fcm.67716/

It works fine most of the time but sometimes after sending the request using code from the example I get this in Job done:

B4X:

Reason: The request was missing an Authentication Key (FCM Token). Please, refer to section "Authentication" of the FCM documentation, at https://firebase.google.com/docs/cloud-messaging/server., Response: <HTML>
<HEAD>
<TITLE>The request was missing an Authentication Key (FCM Token). Please, refer to section &quot;Authentication&quot; of the FCM documentation, at https://firebase.google.com/docs/cloud-messaging/server.</TITLE>
</HEAD>
<BODY BGCOLOR="#FFFFFF" TEXT="#000000">
<H1>The request was missing an Authentication Key (FCM Token). Please, refer to section &quot;Authentication&quot; of the FCM documentation, at https://firebase.google.com/docs/cloud-messaging/server.</H1>
<H2>Error 401</H2>
</BODY>
</HTML>

The same Server Key is passed every time.
I use jOkHttpUtil2_NONUI 2.70 in my B4J app.

Any ideas what can cause this strange error?
Some problems in: Job.GetRequest.SetHeader("Authorization", "key=" & API_KEY)
or some Firebase issue?

DonManfred · Oct 10, 2018

woniol said:
The same Server Key is passed every time.

based on the error it is not.

Post your code

woniol · Oct 10, 2018

DonManfred said:
based on the error it is not.

Post your code

Most of the time it works fine, but sometimes the notification is not send because of that error.
The code I use comes from the example and is:

B4X:

Sub Process_Globals
    Dim API_KEY As String = "AAAAM0xxxxxxxxxxxxx"
End Sub

Private Sub SendNotification(Topic As String, data As Map)
    Dim Job As HttpJob
    Job.Initialize("fcm", Me)
    Dim m As Map = CreateMap("to": $"/topics/${Topic}"$)
    m.Put("data", data)
    Dim jg As JSONGenerator
    jg.Initialize(m)
    Job.PostString("https://fcm.googleapis.com/fcm/send", jg.ToString)
    Job.GetRequest.SetContentType("application/json;charset=UTF-8")
    Job.GetRequest.SetHeader("Authorization", "key=" & API_KEY)
    LogError("Noti sending: "&jg.ToString&" KEY: "&API_KEY)
End Sub

Sub JobDone(job As HttpJob)
    If job.Success Then
        Main.Logger.logsINFO("[Notify] Message sent")
    Else
        Main.Logger.logsERROR("[Notify] Message not sent: "&job.ErrorMessage)
    End If
    job.Release
End Sub

KMatle · Oct 10, 2018

Never had such an issue. Please log and post the REAL request you send here (without the creds).

woniol · Oct 10, 2018

I'm logging every request and Jobdone result, so i'll post it next time i see this error in logs.
Thanks for you help so far.

PS. I found similar issue reported some time ago on the forum:
https://www.b4x.com/android/forum/threads/ws_eval-issue.80220/#post-508301

Erel · Oct 11, 2018

The code looks correct (though there is no need to have a JobDone sub anymore).

Sleep for a few seconds when the request fails and send a new one. You should expect errors to happen.

woniol · Oct 11, 2018

Erel said:
The code looks correct (though there is no need to have a JobDone sub anymore).

Sleep for a few seconds when the request fails and send a new one. You should expect errors to happen.

Ok, thank you. I'll change it to:

B4X:

Wait For (j) JobDone(j As HttpJob)

and then when it fails , I'll resend it after some sleep.

I'll let know about the results.

As I mentioned: I use jOkHttpUtil2_NONUI 2.70 in my app and it runs on raspberry pi.

woniol · Dec 3, 2018

Hi,
the 'missing api key' problem returned.
This time I download data from different web service every 10 minutes (with timer) with the code below:

B4X:

Dim Job As HttpJob
    Job.Initialize("", Me)
    Job.Download("https://airapi.airly.eu/v2/measurements/installation?installationId=xxx")
    Job.GetRequest.SetHeader("Accept", "application/json;charset=UTF-8")
    Job.GetRequest.SetHeader("Accept-Language", "pl")
    Job.GetRequest.SetHeader("apikey", API_KEY)
    Wait For (Job) JobDone(Job As HttpJob)
    If Job.Success Then
        ParseAnswer(Job.GetString)
    Else
        Main.Logger.logsERROR("[Airly] data received error: "&Job.ErrorMessage)
    End If
    Job.Release

and sometimes I get logged:

B4X:

[Airly] data received error: {"message":"No API key found in request"}

so I looks very similar to the problem I have with Firebase Notification requests.

Is it possible that

B4X:

Job.GetRequest.SetHeader("apikey", API_KEY)

is not called before sending reguest?

Erel · Dec 4, 2018

woniol said:
is not called before sending reguest?

It is not possible. The download will not start until it reaches the Wait For line.

B4J Question FirebaseNotifications - missing an Authentication Key

woniol

Active Member

DonManfred

Expert

woniol

Active Member

KMatle

Expert

woniol

Active Member

Erel

B4X founder

woniol

Active Member

woniol

Active Member

Erel

B4X founder

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