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(PowerBuilder) Add Data to multipart/form-data Request

Demonstrates how to add content (such as a JPG, PDF, XML, etc.) to multipart/form-data requests.

Chilkat ActiveX Downloads

ActiveX for 32-bit and 64-bit Windows

integer li_rc
oleobject loo_Req
oleobject loo_Bd
integer li_Success

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

loo_Req = create oleobject
li_rc = loo_Req.ConnectToNewObject("Chilkat_9_5_0.HttpRequest")
if li_rc < 0 then
    destroy loo_Req
    MessageBox("Error","Connecting to COM object failed")
    return
end if
loo_Req.HttpVerb = "POST"
loo_Req.ContentType = "multipart/form-data"
loo_Req.Path = "/xyz/something"

loo_Req.AddParam("param1","value1")
loo_Req.AddParam("param2","value2")

// Add some small files to the request. (Small so we can see what the full request looks like without too much data..)
loo_Bd = create oleobject
li_rc = loo_Bd.ConnectToNewObject("Chilkat_9_5_0.BinData")

li_Success = loo_Bd.LoadFile("qa_data/jpg/starfish20.jpg")
loo_Req.AddBdForUpload("starfish20","starfish20.jpg",loo_Bd,"image/jpeg")

li_Success = loo_Bd.LoadFile("qa_data/pdf/helloWorld.pdf")
loo_Req.AddBdForUpload("helloWorld","helloWorld.pdf",loo_Bd,"application/pdf")

li_Success = loo_Bd.LoadFile("qa_data/xml/tinyA.xml")
loo_Req.AddBdForUpload("tinyA","tinyA.xml",loo_Bd,"text/xml")

// This HTTP request contains binary data, so we cannot call GenerateRequestText
// to examine it as a string.  We can instead call GenerateRequestFile
// to write the request to a file and then examine using a hex editor,
// or an editor that is capable of handling null bytes and non-printable chars (perhaps by displaying "?" chars instead).
loo_Req.GenerateRequestFile("qa_output/multipartFormDataRequest.bin")

Write-Debug "OK."

// This is the HTTP multipart/form-data request built by the above code:

// POST /xyz/something HTTP/1.1
// Host: domain
// Content-Type: multipart/form-data; boundary=------------090708030009010000030901
// Content-Length: 2220
// 
// --------------090708030009010000030901
// Content-Disposition: form-data; name="param1"
// 
// value1
// --------------090708030009010000030901
// Content-Disposition: form-data; name="param2"
// 
// value2
// --------------090708030009010000030901
// Content-Disposition: form-data; name="starfish20"; filename="starfish20.jpg"
// Content-Type: image/jpeg
// 
// JPEG DATA HERE...
// --------------090708030009010000030901
// Content-Disposition: form-data; name="helloWorld"; filename="helloWorld.pdf"
// Content-Type: application/pdf
// 
// PDF DATA HERE...
// --------------090708030009010000030901
// Content-Disposition: form-data; name="tinyA"; filename="tinyA.xml"
// Content-Type: text/xml
// 
// XML DATA HERE...
// --------------090708030009010000030901--
// 


destroy loo_Req
destroy loo_Bd

 

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