Android Question Problem to upload file EncodeFromImage

Calvin Yee · Feb 19, 2019

I'm trying to implement a file upload from my device to a Web API and Encode from image.
And Error encounter is as below:-

java.lang.NullPointerException: Attempt to invoke virtual method 'void anywheresoftware.b4h.okhttp.OkHttpClientWrapper$OkHttpRequest.InitializePost2(java.lang.String, byte[])' on a null object reference
at anywheresoftware.b4a.samples.httputils2.httpjob._postbytes(httpjob.java:284)
at anywheresoftware.b4a.samples.httputils2.httpjob._poststring(httpjob.java:423)

B4X:

Private Base64Con As Base64Image
PicFileName=IS001.jpeg
Private B64Str As String = Base64Con.EncodeFromImage(File.DirDefaultExternal, "IS001.jpeg")
Dim json As HttpJob
Dim m As String  = $"?DocNo=${DocNo}&PicFileName=${PicFileName}&PicImage=${B64Str}"$

            json.PostString(Starter.URILink & "/api/Customer/UploadDocument" & m,"")
            json.GetRequest.SetHeader("Authorization","Bearer " & kvs.GetSimple("CurrUserTokenAccess"))
            json.GetRequest.SetContentType("application/json")
            Wait For (json) JobDone(json As HttpJob)
            If json.Success Then
                Log("dd:" & json.GetString)
                Dim jNDparser As JSONParser
                jNDparser.Initialize(json.GetString)
                Dim root As Map = jNDparser.NextObject
                Dim result As String = root.Get("result")
                Dim data As String = root.Get("data")
                Dim resultset As String = root.Get("resultset")
                Log("data:" & data.Trim)
                If data.Trim ="Successful" Then
                    str="UPDATE Photo SET ImageSync='Y' "
                    str=str & " WHERE Docno='" & DocNo & "' "
                    SQL1.ExecNonQuery(str)
                End If
            End If
            json.Release

Erel · Feb 19, 2019

1. You haven't initialized the HttpJob.
2. Don't use File.DirDefaultExternal. Watch the runtime permissions video tutorial for more information.

Calvin Yee · Feb 19, 2019

Hi,
Modified as per:-
1. You haven't initialized the HttpJob.
2. Don't use File.DirDefaultExternal. Watch the runtime permissions video tutorial for more information.

And Error encounter is as below:-
ResponseError. Reason: Request-URI Too Long, Response: <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN""http://www.w3.org/TR/html4/strict.dtd">
<HTML><HEAD><TITLE>Request URL Too Long</TITLE>
<META HTTP-EQUIV="Content-Type" Content="text/html; charset=us-ascii"></HEAD>
<BODY><h2>Request URL Too Long</h2>
<hr><p>HTTP Error 414. The request URL is too long.</p>
</BODY></HTML>

this is output from EncodeFromImage:-

DocNo=IN638456&PicFileName=IN638456_2.jpeg&PicImage=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

B4X:

Private Base64Con As Base64Image
PicFileName=IS001.jpeg
Private B64Str As String = Base64Con.EncodeFromImage(DirFolder, "IS001.jpeg")
Dim json As HttpJob
Dim m As String  = $"?DocNo=${DocNo}&PicFileName=${PicFileName}&PicImage=${B64Str}"$
json.Initialize("MyJobPostPhoto",Me)
            json.PostString(Starter.URILink & "/api/Customer/UploadDocument" & m,"")
            json.GetRequest.SetHeader("Authorization","Bearer " & kvs.GetSimple("CurrUserTokenAccess"))
            json.GetRequest.SetContentType("application/json")
            Wait For (json) JobDone(json As HttpJob)
            If json.Success Then
                Log("dd:" & json.GetString)
                Dim jNDparser As JSONParser
                jNDparser.Initialize(json.GetString)
                Dim root As Map = jNDparser.NextObject
                Dim result As String = root.Get("result")
                Dim data As String = root.Get("data")
                Dim resultset As String = root.Get("resultset")
                Log("data:" & data.Trim)
                If data.Trim ="Successful" Then
                    str="UPDATE Photo SET ImageSync='Y' "
                    str=str & " WHERE Docno='" & DocNo & "' "
                    SQL1.ExecNonQuery(str)
                End If
            End If
            json.Release

And now example on my WS side:

B4X:

             private ResultJsonTemplate DoUpload_Document(string DocNo, string PicFileName, Byte PicImage)

Erel · Feb 19, 2019

Don't post with bold text. It only makes it more difficult to read your post.

You are not sending the data correctly. You are sending the parameters as GET parameters instead of creating a json string as a POST payload.

Android Question Problem to upload file EncodeFromImage

Calvin Yee

Member

Erel

B4X founder

Calvin Yee

Member

Erel

B4X founder

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