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(PowerBuilder) HTTP multipart/form-data Upload

Demonstrates how to upload files to an HTTP server using a multipart/form-data POST.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Http
oleobject loo_Req
integer li_Success
oleobject loo_Resp

// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

loo_Http = create oleobject
li_rc = loo_Http.ConnectToNewObject("Chilkat_9_5_0.Http")
if li_rc < 0 then
    destroy loo_Http
    MessageBox("Error","Connecting to COM object failed")
    return
end if

loo_Req = create oleobject
li_rc = loo_Req.ConnectToNewObject("Chilkat_9_5_0.HttpRequest")

loo_Req.HttpVerb = "POST"
loo_Req.ContentType = "multipart/form-data"
loo_Req.Path = "rcvFormDataUpload.aspx"

// Send an "Expect: 100-continue" header in the request.
// This causes the HTTP server to end a 100-continue response
// immediately after receiving the HTTP header.  The client
// (Chilkat) will receive this intermediate response, and if
// it's not an error response, it knows that the HTTP server will
// accept the data that is forthcoming.
// The alternative is to get an error response after trying to upload
// the entire contents of the files.
loo_Req.AddHeader("Expect","100-continue")

// Call AddFileForUpload2 for each file to be uploaded in the HTTP multipart/form-data POST
// To allow Chilkat to determine the content-type automatically based on file-extension,
// call AddFileForUpload instead.

// The 1st arg is the filename passed in the HTTP request.
// The 2nd arg is the path in the local filesytem.
// The file is not loaded into memory.  It is streamed directly from the file
// when the HTTP POST is sent.
li_Success = loo_Req.AddFileForUpload2("starfish.jpg","c:/qa_data/starfish.jpg","image/jpg")
if li_Success <> 1 then
    Write-Debug loo_Req.LastErrorText
    destroy loo_Http
    destroy loo_Req
    return
end if

li_Success = loo_Req.AddFileForUpload("something.pdf","c:/qa_data/something.pdf")
if li_Success <> 1 then
    Write-Debug loo_Req.LastErrorText
    destroy loo_Http
    destroy loo_Req
    return
end if

// Its also possible to add a file from a string:
li_Success = loo_Req.AddStringForUpload("test.xml","test.xml","<abc>This is the test.xml content</abc>","utf-8")
// We'll assume success since no files are involved..

// This sends the HTTP request (with 3 files being uploaded) to
// http://www.mywebserver123abc.com/rcvFormDataUpload.aspx

loo_Resp = loo_Http.SynchronousRequest("www.mywebserver123abc.com",80,0,loo_Req)
if loo_Http.LastMethodSuccess <> 1 then
    Write-Debug loo_Http.LastErrorText
else
    Write-Debug "HTTP response status: " + string(loo_Resp.StatusCode)
    // See the online reference documentation for 
    // other information that can be obtained from the response object.
    destroy loo_Resp
end if

// To send using SSL/TLS, do this instead.
// This sends to https://www.mywebserver123abc.com/rcvFormDataUpload.aspx
loo_Resp = loo_Http.SynchronousRequest("www.mywebserver123abc.com",443,1,loo_Req)
if loo_Http.LastMethodSuccess <> 1 then
    Write-Debug loo_Http.LastErrorText
else
    Write-Debug "HTTP response status: " + string(loo_Resp.StatusCode)
    // See the online reference documentation for 
    // other information that can be obtained from the response object.
    destroy loo_Resp
end if



destroy loo_Http
destroy loo_Req

 

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