Android Question Firebase Push Notification - integration with ASP.NET

Alex_197 said:

or to pass some parameters into B4J project?

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Alex_197 said:

or to pass some parameters into B4J project?

Click to expand...

Sub AppStart (Form1 As Form, Args() As String)
...
End sub

    OpenProgram2('"C:\Java\jdk-11.0.1\bin\javaw.exe"',tempdir,'--module-path C:\Java\jdk-11.0.1\javafx\lib --add-modules ALL-MODULE-PATH -jar \\192.168.2.252\jars\UnternehmerErklaerung.jar '+IntToStr(abnr)+'');

procedure OpenProgram2(prog, path, params: string);
var
  c, p, dir: array[0..800] of Char;
begin
  StrPCopy(c, prog);
  StrPCopy(p, params);
  StrPCopy(dir, path);
  ShellExecute(0, 'open', c, p, dir, SW_NORMAL);
end;

DonManfred said:

The given parameters are in Args.

B4X:

Sub AppStart (Form1 As Form, Args() As String)
...
End sub

I can´t help you with code in vb.net /c# to start an app and give parameters.

In Delphi i use

B4X:

    OpenProgram2('"C:\Java\jdk-11.0.1\bin\javaw.exe"',tempdir,'--module-path C:\Java\jdk-11.0.1\javafx\lib --add-modules ALL-MODULE-PATH -jar \\192.168.2.252\jars\UnternehmerErklaerung.jar '+IntToStr(abnr)+'');

where IntToStr(abnr) is ust the string-interpretion of abnr (int).

You can add more parameters.

OpenProgram2 is just a helper-sub around ShellExecute

B4X:

procedure OpenProgram2(prog, path, params: string);
var
  c, p, dir: array[0..800] of Char;
begin
  StrPCopy(c, prog);
  StrPCopy(p, params);
  StrPCopy(dir, path);
  ShellExecute(0, 'open', c, p, dir, SW_NORMAL);
end;

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Erel said:

What exactly do you mean?

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Private Sub GetTokenValue (FilePath As String) As String
    Dim GoogleCredentials As JavaObject
    GoogleCredentials.InitializeStatic("com.google.auth.oauth2.GoogleCredentials")
    Dim Credentials As JavaObject = GoogleCredentials.RunMethodJO("fromStream", Array(File.OpenInput(FilePath, ""))) _
        .RunMethod("createScoped", Array(Array As String("https://www.googleapis.com/auth/firebase.messaging")))
    Credentials.RunMethod("refreshIfExpired", Null)
    Return Credentials.RunMethodJO("getAccessToken", Null).RunMethod("getTokenValue", Null)
End Sub

Erel said:

I guess that it is possible. You need to go over Google documentation and find whether they provide asp.net SDK and follow their instructions.

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Erel said:

You can also create a B4J console app and run it from your server whenever you need to send a message.

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tznikos said:

Hi, when run the code with the function GetTokenValue, getting the following error

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#AdditionalJar: google-auth-library-oauth2-http-1.18.0.jar
#AdditionalJar: google-auth-library-credentials-1.18.0.jar
#AdditionalJar: guava-23.0.jar
#AdditionalJar: google-http-client-1.43.3.jar
#AdditionalJar: google-http-client-gson-1.43.3.jar
#AdditionalJar: gson-2.10.1.jar
#AdditionalJar: opencensus-api-0.31.1.jar
#AdditionalJar: opencensus-contrib-http-util-0.31.1.jar
#AdditionalJar: grpc-context-1.27.2.jar
#PackagerProperty: AdditionalModuleInfoString = uses com.google.auth.http.HttpTransportFactory;

Alex_197 said:

Thank you. Good idea.

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Alex_197 said:

Hi all.

I want to integrate the Firebase Push Notification with my asp,net website. But from what I read so far is that the token generated by B4J GetTokenValue is valid for 1 hour only.
So if I start B4J sending tool and copy the token string from there and use it in my asp.net this token will expire in 1 hour.

Is there any options to either convert GetTokenValue to vb.net /c# or to pass some parameters into B4J project?

Click to expand...

public class Message {

  public string token {
    get;
    set;
  }

  public Data data {
    get;
    set;
  }

  public Notification notification {
    get;
    set;
  }

  public string topic {
    get;
    set;
  }



}

Root rootObj = new Root();
  rootObj.message = new Message();

  //rootObj.message.token = "cEM68BIdTomaE0R2dbaO:APA91bG8XfOjU_GSPNQYCrJ4wzE7VmMPEsyudwtE41VWKzJcoT2f3wbKsKCHwk5s078ZL31mM258-BzdZPRNXAlc_fyzCzj2txLQvQ3u7jggDPHjYIMlHRgspXT0CudfK"; //FCM Token id
 
  rootObj.message.data = new Data();
  rootObj.message.data.title = "Data Title";
  rootObj.message.data.body = "Data Body";
  rootObj.message.data.key_1 = "Sample Key";
  rootObj.message.data.key_2 = "Sample Key2";
  rootObj.message.notification = new Notification();
  rootObj.message.notification.title = "Notify Title";
  rootObj.message.notification.body = "Notify Body";
  rootObj.message.topic = "general";

ddefrain said:

Firebase Notifications C#
There you go @Alex_197

Note: If you handle a topic you don't need to use/send the FCM Token id; I mean send the topic instead of.
And Yes Google Do that for security reasons the bearertoken lasts only one hour that's why you need to create a new one

Extract of modified code

B4X:

public class Message {

  public string token {
    get;
    set;
  }

  public Data data {
    get;
    set;
  }

  public Notification notification {
    get;
    set;
  }

  public string topic {
    get;
    set;
  }



}

B4X:

Root rootObj = new Root();
  rootObj.message = new Message();

  //rootObj.message.token = "cEM68BIdTomaE0R2dbaO:APA91bG8XfOjU_GSPNQYCrJ4wzE7VmMPEsyudwtE41VWKzJcoT2f3wbKsKCHwk5s078ZL31mM258-BzdZPRNXAlc_fyzCzj2txLQvQ3u7jggDPHjYIMlHRgspXT0CudfK"; //FCM Token id
 
  rootObj.message.data = new Data();
  rootObj.message.data.title = "Data Title";
  rootObj.message.data.body = "Data Body";
  rootObj.message.data.key_1 = "Sample Key";
  rootObj.message.data.key_2 = "Sample Key2";
  rootObj.message.notification = new Notification();
  rootObj.message.notification.title = "Notify Title";
  rootObj.message.notification.body = "Notify Body";
  rootObj.message.topic = "general";

Hope it helps!

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