Recent posts:
show all 49
Recent replies:
show all 22
Yone Moreno · Jan 5, 2021

Hello,

We have continued the development,

The output system now replies to us

However we do see that the 2nd MIME part, the image, is being sent from ENSEMBLE, different than the image sent with POSTMAN

1 Let's see what we send from Ensemble:

2 The following image show us what POSTMAN correctly sends:

If we examine and compare both images, we observe that the image sent with Postam is being recognized as a JPEG, however the one sent with Ensemble is not being sent as a JPEG

The code which we have written is:

Class Operaciones.REST.miSCS.miSCS Extends EnsLib.REST.Operation
{

Parameter INVOCATION = "Queue";

/// 📤 Subir la imagen 
Method SubirImagen(pRequest As Mensajes.Request.miSCS.SubirImagen, pResponse As Mensajes.Response.miSCS.SubirImagen) As %Library.Status
{
    
    //Crear Request y Response HTTP
    Set httpRequest=##class(%Net.HttpRequest).%New()
    set tResponse = ##class(%Net.HttpResponse).%New()
    
    // Create root MIMEPart, la parte que contiene al resto
    Set RootMIMEPart=##class(%Net.MIMEPart).%New()
    
    //Crear parte con el expediente
     Set ExpedienteMIMEPart=##class(%Net.MIMEPart).%New()
     Set contentdisp="form-data; name=""expediente"""
     Do ExpedienteMIMEPart.SetHeader("Content-Disposition",contentdisp)
     Set ExpedienteMIMEPart.Body=pRequest.expediente
     //Do ExpedienteMIMEPart.SetHeader("Content-Type","text/plain")
     
    // Crear parte con la imagen
    Set ImagenMIMEPart=##class(%Net.MIMEPart).%New()
    Set ImagenMIMEPart.Body=##class(%GlobalCharacterStream).%New()
    //Probamos a leer una imagen local
    Set stream=##class(%Stream.FileCharacter).%New()
      Set sc=stream.LinkToFile("C:\Users\ext-ymorjim\Pictures\miSCS.jpg")
      While 'stream.AtEnd {
          Set linea=stream.Read()
      }
      $$$LOGINFO("linea: "_linea)
      //Escribir la imagen en el mensaje MIME
     Do ImagenMIMEPart.Body.Write(linea)
    //Do ImagenMIMEPart.Body.Write(pRequest.imagen)

    // Cabeceras de la imagen
    Set ImagenMIMEPart.ContentType="image/jpeg"
    Set contentdisp="form-data; name=""imagen""; filename="""_stream.Filename_""
    Do ImagenMIMEPart.SetHeader("Content-Disposition",contentdisp)

    // Insertar las partes en la raiz
    Do RootMIMEPart.Parts.Insert(ExpedienteMIMEPart)
    Do RootMIMEPart.Parts.Insert(ImagenMIMEPart)
    
    // create MIME writer; write root MIME message
    Set writer=##class(%Net.MIMEWriter).%New()

    // Prepare outputting to the HttpRequestStream
    Set httpRequest=##class(%Net.HttpRequest).%New()
    Set status=writer.OutputToStream(httpRequest.EntityBody)
    if $$$ISERR(status) {do $SYSTEM.Status.DisplayError(status) Quit}

    // Now write down the content
    Set status=writer.WriteMIMEBody(RootMIMEPart)
    if $$$ISERR(status) {do $SYSTEM.Status.DisplayError(status) Quit}

    // Creamos la URL
    set url      = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","url")
    set path     = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","path")
    set servicio = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","servicio")
    set recurso  = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","subirImagen")
            
    set URL = "http://"_url_path_servicio_recurso
    $$$LOGINFO("URL: "_URL)
    
    
    //Escribimos el tipo de contenido que enviamos
    Set httpRequest.ContentType="multipart/form-data; boundary="_RootMIMEPart.Boundary
    $$$LOGINFO("> httpRequest.ContentType: "_httpRequest.ContentType)
    
    //Enviamos
    set tSC=httpRequest.Post(URL,0)
    $$$LOGINFO("tSC: "_tSC)
    
    if $$$ISERR(tSC){
            $$$ThrowOnError(tSC)
    }
    if (tResponse.Data.AtEnd = 0) {
        $$$LOGINFO("En SubirImagen, tamaño de tResponse: "_tResponse.Data.Size)
        set linea = tResponse.Data.Read()
        $$$LOGINFO("Linea: "_linea)
    }
    
    set pResponse = ##class(Mensajes.Response.miSCS.SubirImagen).%New()
    set pResponse.resultado = 1
    set pResponse.informacion = linea

    Quit pResponse
}

How could we continue‽
 

Could you point us to some example??, please

We have read:

https://docs.intersystems.com/irisforhealthlatest/csp/docbook/DocBook.UI...

Thanks in advance

Yone Moreno · Jan 5, 2021

Hello,

Thanks Marc Mundt for your help,

1 We have tried with the following code which reads a String which represents an image in pRequest.imagen and we send it into a MIME:

Class Operaciones.REST.miSCS.miSCSSubirImagenJPGlocal Extends EnsLib.REST.Operation { Parameter INVOCATION = "Queue";

/// 📤 Subir la imagenSanitaria
Method SubirImagen(pRequest As Mensajes.Request.miSCS.SubirImagen, pResponse As Mensajes.Response.miSCS.SubirImagen) As %Library.Status
{
    
    Set httpRequest=##class(%Net.HttpRequest).%New()
    set tResponse = ##class(%Net.HttpResponse).%New()
    
    Set msg=##class(%Net.MIMEPart).%New()
     Set msg.Body=##class(%GlobalCharacterStream).%New()
    Do msg.Body.Write(pRequest.imagen)
    Set msg.ContentType="multipart/form-data"
    
    // create MIME writer; write root MIME message
    Set writer=##class(%Net.MIMEWriter).%New()

    // Prepare outputting to the HttpRequestStream
    Set status=writer.OutputToStream(httpRequest.EntityBody)
    if $$$ISERR(status) {do $SYSTEM.Status.DisplayError(status) Quit}

    // Now write down the content
    Set status=writer.WriteMIMEBody(msg)
    if $$$ISERR(status) {do $SYSTEM.Status.DisplayError(status) Quit}
    
    set url      = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","url")
    set path     = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","path")
    set servicio = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","servicio")
    set recurso  = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","subirImagen")
            
    set URL = "http://"_url_path_servicio_recurso
    $$$LOGINFO("URL: "_URL)

    set tFormVarNames = "expediente,imagen"
    set tData("expediente") = pRequest.expediente
    set tData("imagen") = pRequest.imagen

    set tSC = ..Adapter.SendFormDataArray(.tResponse,"POST",httpRequest,.tFormVarNames,.tData,URL)
    $$$LOGINFO("tSC: "_tSC)
    
    if $$$ISERR(tSC){
            $$$ThrowOnError(tSC)
    }
    if (tResponse.Data.AtEnd = 0) {
        $$$LOGINFO("En SubirImagen, tamaño de tResponse: "_tResponse.Data.Size)
        set linea = tResponse.Data.Read()
        $$$LOGINFO("Linea: "_linea)
    }
    
    set pResponse = ##class(Mensajes.Response.miSCS.SubirImagen).%New()
    do pResponse.return.Write(linea)

    Quit pResponse
}

However when we see it using Whireshark we observe that it is being sent as text/html

2 We have also used the following approach, to read a JPG directly and send it into the MIME: 

Class Operaciones.REST.miSCS.miSCSSubirImagenJPGlocal Extends EnsLib.REST.Operation
{

Parameter INVOCATION = "Queue";

/// 📤 Subir la imagenSanitaria
Method SubirImagen(pRequest As Mensajes.Request.miSCS.SubirImagen, pResponse As Mensajes.Response.miSCS.SubirImagen) As %Library.Status
{
    
    //Crear Request y Response HTTP
    Set httpRequest=##class(%Net.HttpRequest).%New()
    set tResponse = ##class(%Net.HttpResponse).%New()
    
    //Crear MIME
    Set msg=##class(%Net.MIMEPart).%New()
     Set msg.Body=##class(%GlobalCharacterStream).%New()
     
    //Probamos a leer una imagen local y a enviarla
    Set stream=##class(%Stream.FileCharacter).%New()
      Set sc=stream.LinkToFile("C:\Users\ext-ymorjim\Pictures\miSCS.jpg")
      While 'stream.AtEnd {
          Set linea=stream.Read()
      }
      $$$LOGINFO("linea: "_linea)
      
      //Escribir la imagen en el mensaje MIME
     Do msg.Body.Write(linea)
    //Do msg.Body.Write(pRequest.imagen)
    Set msg.ContentType="multipart/form-data"
    
    // create MIME writer; write root MIME message
    Set writer=##class(%Net.MIMEWriter).%New()

    // Prepare outputting to the HttpRequestStream
    Set status=writer.OutputToStream(httpRequest.EntityBody)
    if $$$ISERR(status) {do $SYSTEM.Status.DisplayError(status) Quit}

    // Now write down the content
    Set status=writer.WriteMIMEBody(msg)
    if $$$ISERR(status) {do $SYSTEM.Status.DisplayError(status) Quit}
    

    set url      = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","url")
    set path     = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","path")
    set servicio = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","servicio")
    set recurso  = ##class(Util.TablasMaestras).getValorMaestra("MISCS.PARAMETRIZACIONES","subirImagen")
            
    set URL = "http://"_url_path_servicio_recurso
    $$$LOGINFO("URL: "_URL)

    set tFormVarNames = "expediente,imagen"
    set tData("expediente") = pRequest.expediente
    set tData("imagen") = pRequest.imagen
    //set tData("imagen") = linea

    set tSC = ..Adapter.SendFormDataArray(.tResponse,"POST",httpRequest,.tFormVarNames,.tData,URL)
    $$$LOGINFO("tSC: "_tSC)
    
    if $$$ISERR(tSC){
            $$$ThrowOnError(tSC)
    }
    if (tResponse.Data.AtEnd = 0) {
        $$$LOGINFO("En SubirImagen, tamaño de tResponse: "_tResponse.Data.Size)
        set linea = tResponse.Data.Read()
        $$$LOGINFO("Linea: "_linea)
    }
    
    set pResponse = ##class(Mensajes.Response.miSCS.SubirImagen).%New()
    do pResponse.return.Write(linea)

    Quit pResponse
}

With the previous code we see that a text/html is being sent too:

In both cases, the external system gives us a HTTP code 400:

     ERROR <Ens>ErrException: <THROW>zSubirImagen+40^Operaciones.REST.miSCS.miSCS.1 *%Exception.StatusException ERROR <Ens>ErrHTTPStatus: Received non-OK status 400 from remote HTTP server: 'HTTP/1.1 400 ' -- logged as '-' number - @' Set sc=tSC Throw:('sc) ##class(%Exception.StatusException).ThrowIfInterrupt(sc)'

How could we achieve to send it in the correct way? as it is being sent when we use POSTMAN:

How could we send the image as multipart/form-data?

> We have read:

https://docs.intersystems.com/irisforhealthlatest/csp/docbook/DocBook.UI...

https://docs.intersystems.com/irisforhealthlatest/csp/docbook/Doc.View.c...

How could we send the image as multipart/form-data as it is being sent by Postman?

➡️ Could you point us to same code examples, please?

Yone Moreno · Aug 14, 2020

Hello Kevin,

Yes you were right we did not include "/opt/contenedor/Java/AppSeguimientoAnadidaReferenciaJARSexternos.jar"

We have just added it and the exception continues.

Followers:
Yone has no followers yet.
Following:
Yone has not followed anybody yet.
Global Masters badges:
show all 7