Android Question [ANSWERED] HttpUtils2 HttpJob.GetString throws EISDIR

Lee Gillie CCP

Active Member
Licensed User
Another first for me.... again, probably something fundamental or simple, but I can't see it.

I have created a WebApi server running on Windows and am attempting to call a web api method from the mobile. The request makes it to my server, and causes dispatch of the function, and the server responds with a valid return-value (string array), as is evidenced by my web server session logs. But on the mobile side I get a File Not Found Exception - open failed: EISDIR (Is a directory).
B4X:
Sub btnGetTrucks_Click

    PLog("Starting btnGetTrucks_Click")
   
    Try
        Dim rmc As RemoteMethodCall
       
        rmc.Initialize
       
        rmc.Method = "GetKnownTrucks"
       
        Dim prms As Map
        prms.Initialize
       
        rmc.Parameters.Add(prms)
       
        rmc.ReturnType = "String()"   
   
        Dim job As HttpJob
        job.Initialize("job",Me)
       
        Dim link As String = WebApiBaseUrl
        Dim text As String = rmc.ToJSON
       
        PLog(" - Making request: link=" & link & ", text=" & text )
        job.PostString(WebApiBaseUrl , text )
               
        Dim rsp As String = job.GetString()
        PLog(" - response is """ & rsp & """")
    Catch
        PLog(" - *EXCEPTION* " & LastException.Message)
    End Try
job.GetString() is line 192 of main, and the exception logged at the mobile is

Error occurred on line: 192 (Main)
java.io.FileNotFoundException: /: open failed: EISDIR (Is a directory)
at libcore.io.IoBridge.open(IoBridge.java:409)
at java.io.FileInputStream.<init>(FileInputStream.java:78)
at anywheresoftware.b4a.objects.streams.File.OpenInput(File.java:209)
at anywheresoftware.b4a.samples.httputils2.httpjob._getstring2(httpjob.java:155)
at anywheresoftware.b4a.samples.httputils2.httpjob._getstring(httpjob.java:144)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:636)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:302)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:238)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:121)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:175)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:171)
at anywheresoftware.b4a.objects.ViewWrapper$1.onClick(ViewWrapper.java:78)
at android.view.View.performClick(View.java:4633)
at android.view.View$PerformClick.run(View.java:19270)
at android.os.Handler.handleCallback(Handler.java:733)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:136)
at android.app.ActivityThread.main(ActivityThread.java:5476)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:515)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1268)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1084)
at dalvik.system.NativeStart.main(Native Method)
Caused by: libcore.io.ErrnoException: open failed: EISDIR (Is a directory)
at libcore.io.IoBridge.open(IoBridge.java:398)
... 26 more

Something must be working because my server sees the request, and responds in JSON just fine. I suspect it has nothing to do with the JSON bodies going back and forth for request and response, but probably more likely a misuse or abuse of HTTPJOB ??
 

DonManfred

Expert
Licensed User
job.PostString(WebApiBaseUrl , text )

Dim rsp As String = job.GetString()
PLog(
" - response is """ & rsp & """")
You cannot use GetString at this point of your code!!!

Start the job and then wait for the SubDone sub to be called. Inside JobDone you then can use Job.GetString...

See the tutorial and follow the way of working with it
 

Lee Gillie CCP

Active Member
Licensed User
Absolutely Don Manfred... Thanks for taking a moment to point it out!

RTFM! I did and it was very obvious. I have so many tutorials to cover... Thanks to all who have contributed them. They are hugely helpful.

Best regards - Lee
 
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