PureBasic

QuickGetBd Example

The QuickGetBd method is called to send a GET request to download a binary target, such as PDF, zip, image file, etc. into a Chilkat BinData object. PureBasic

IncludeFile "CkBinData.pb"
IncludeFile "CkHttp.pb"
IncludeFile "CkPdf.pb"

Procedure ChilkatExample()

    success.i = 0

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

    http.i = CkHttp::ckCreate()
    If http.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    CkHttp::setCkKeepResponseBody(http, 1)

    bd.i = CkBinData::ckCreate()
    If bd.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    ; Download the contents of a PDF file into the bd object.
    success = CkHttp::ckQuickGetBd(http,"https://www.chilkatsoft.com/hello.pdf",bd)
    If success = 0
        ; This will happen if the response status code was 400 or greater,
        ; or if the request could not be sent, or if no response was received.
        ; 
        ; In other words, success will only be 1 if bd contains the desired content at the URL (not an error response).
        statusCode.i = CkHttp::ckLastStatus(http)
        Debug "Response status: " + Str(statusCode)

        If statusCode = 0
            ; There was an error in communications.  
            Debug CkHttp::ckLastErrorText(http)
        Else
            ; We received a response status code indicating failure.
            ; Examine the response body.
            Debug CkHttp::ckLastResponseBody(http)
        EndIf

        CkHttp::ckDispose(http)
        CkBinData::ckDispose(bd)
        ProcedureReturn
    EndIf

    ; Load the downloaded PDF into a Chilkat PDF object.
    pdf.i = CkPdf::ckCreate()
    If pdf.i = 0
        Debug "Failed to create object."
        ProcedureReturn
    EndIf

    success = CkPdf::ckLoadBd(pdf,bd)
    If success = 0
        Debug CkPdf::ckLastErrorText(pdf)
        CkHttp::ckDispose(http)
        CkBinData::ckDispose(bd)
        CkPdf::ckDispose(pdf)
        ProcedureReturn
    EndIf

    ; ...

    Debug "Success."


    CkHttp::ckDispose(http)
    CkBinData::ckDispose(bd)
    CkPdf::ckDispose(pdf)


    ProcedureReturn
EndProcedure