B4J Question [SOLVED]OAuth integration

[Alvaro MOnteiro]

Hi, all.

I'm trying to integrate our management software to WooCommerce Rest API.
I'm using the OAuth B4A lib in B4J.

Sub Process_Globals
    Dim req As HttpRequest
    Dim auth As OAuth
    ...
  
    Dim key As String = "myConsumerKey..........."
    Dim sec As String = "myConsumerSecret......"
    Dim url As String = "localhost/wp-json/wc/v2/products"
End Sub

Sub App_Start
    ...

    req.InitializeGet(url)
    auth.Initialize(key, sec)
    auth.Sign(req)

    ...

End Sub

When I call auth.Sign(req) B4J returns to me this exception:
oauth.signpost.exception.OAuthMessageSignerException: java.lang.NullPointerException

Looking in the Watcher, the Base64 in the messageSigner inside OAuth object is null. How can I set a value for it?

 

[Erel]

Can you post the full error message from the logs?

 

[Alvaro MOnteiro]

Can you post the full error message from the logs?

Hi, Erel!

This is the exception:



Waiting for debugger to connect...
Program started.
Error occurred on line: 30
oauth.signpost.exception.OAuthMessageSignerException: java.lang.NullPointerException
at oauth.signpost.signature.SignatureBaseString.generate(SignatureBaseString.java:61)
at oauth.signpost.signature.HmacSha1MessageSigner.sign(HmacSha1MessageSigner.java:52)
at oauth.signpost.AbstractOAuthConsumer.sign(AbstractOAuthConsumer.java:110)
at oauth.signpost.AbstractOAuthConsumer.sign(AbstractOAuthConsumer.java:120)
at anywheresoftware.b4a.objects.OAuth.Sign(OAuth.java:40)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.shell.Shell.runVoidMethod(Shell.java:657)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:234)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:159)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:90)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:93)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:77)
at b4j.example.main.start(main.java:38)
at com.sun.javafx.application.LauncherImpl.lambda$launchApplication1$161(LauncherImpl.java:863)
at com.sun.javafx.application.PlatformImpl.lambda$runAndWait$174(PlatformImpl.java:326)
at com.sun.javafx.application.PlatformImpl.lambda$null$172(PlatformImpl.java:295)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.javafx.application.PlatformImpl.lambda$runLater$173(PlatformImpl.java:294)
at com.sun.glass.ui.InvokeLaterDispatcher$Future.run(InvokeLaterDispatcher.java:95)
at com.sun.glass.ui.win.WinApplication._runLoop(Native Method)
at com.sun.glass.ui.win.WinApplication.lambda$null$147(WinApplication.java:177)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at oauth.signpost.signature.SignatureBaseString.normalizeRequestUrl(SignatureBaseString.java:67)
at oauth.signpost.signature.SignatureBaseString.generate(SignatureBaseString.java:55)
... 28 more

 

[Erel]

The url must start with http:// or https://

 

[Alvaro MOnteiro]

Thx, Erel.
I was forgetting that.