(DataFlex) multipart/form-data HTTP POST

Demonstrates how to construct and send a multipart/form-data HTTP POST.

Note: This example requires Chilkat v11.0.0 or greater.

For more information, see https://chilkatsoft.com/http_multipart_form_data_post.asp

Chilkat ActiveX Downloads ActiveX for 32-bit and 64-bit Windows

Use ChilkatAx-win32.pkg

Procedure Test
    Boolean iSuccess
    Variant vReq
    Handle hoReq
    Variant vBd
    Handle hoBd
    Handle hoHttp
    Variant vResp
    Handle hoResp
    String sTemp1
    Integer iTemp1

    Move False To iSuccess

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

    // Sends the following multipart/form-data POST:

    // 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--
    // 

    Get Create (RefClass(cComChilkatHttpRequest)) To hoReq
    If (Not(IsComObjectCreated(hoReq))) Begin
        Send CreateComObject of hoReq
    End
    Set ComHttpVerb Of hoReq To "POST"
    Set ComContentType Of hoReq To "multipart/form-data"
    Set ComPath Of hoReq To "/xyz/something"

    Send ComAddParam To hoReq "param1" "value1"
    Send ComAddParam To hoReq "param2" "value2"

    // Add some small files to the request. (Small so we can see what the full request looks like without too much data..)
    Get Create (RefClass(cComChilkatBinData)) To hoBd
    If (Not(IsComObjectCreated(hoBd))) Begin
        Send CreateComObject of hoBd
    End
    Get ComLoadFile Of hoBd "qa_data/jpg/starfish20.jpg" To iSuccess
    Get pvComObject of hoBd to vBd
    Get ComAddBdForUpload Of hoReq "starfish20" "starfish20.jpg" vBd "image/jpeg" To iSuccess

    Get ComLoadFile Of hoBd "qa_data/pdf/helloWorld.pdf" To iSuccess
    Get pvComObject of hoBd to vBd
    Get ComAddBdForUpload Of hoReq "helloWorld" "helloWorld.pdf" vBd "application/pdf" To iSuccess

    Get ComLoadFile Of hoBd "qa_data/xml/tinyA.xml" To iSuccess
    Get pvComObject of hoBd to vBd
    Get ComAddBdForUpload Of hoReq "tinyA" "tinyA.xml" vBd "text/xml" To iSuccess

    Get Create (RefClass(cComChilkatHttp)) To hoHttp
    If (Not(IsComObjectCreated(hoHttp))) Begin
        Send CreateComObject of hoHttp
    End

    Get Create (RefClass(cComChilkatHttpResponse)) To hoResp
    If (Not(IsComObjectCreated(hoResp))) Begin
        Send CreateComObject of hoResp
    End
    Get pvComObject of hoReq to vReq
    Get pvComObject of hoResp to vResp
    Get ComHttpSReq Of hoHttp "example.com" 443 True vReq vResp To iSuccess
    If (iSuccess = False) Begin
        Get ComLastErrorText Of hoHttp To sTemp1
        Showln sTemp1
        Procedure_Return
    End

    Get ComStatusCode Of hoResp To iTemp1
    Showln "HTTP response status: " iTemp1

    Showln "Received:"
    Get ComBodyStr Of hoResp To sTemp1
    Showln sTemp1


End_Procedure