(Go) REST Download Binary File to Memory

See more REST Examples

Download a binary file to a Chilkat BinData object.

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

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

    rest := chilkat.NewRest()
    var success bool

    // We're going to download a sample MS-Word doc file.
    // The URLs of our MS-Word sample documents are:

    // https://www.chilkatdownload.com/sample_data/sample.doc
    // https://www.chilkatdownload.com/sample_data/sample.docx

    pathPartOfUrl := "/sample_data/sample.doc"
    domain := "chilkatdownload.com"

    bTls := true
    port := 443
    bAutoReconnect := true
    success := rest.Connect(domain,port,bTls,bAutoReconnect)
    if success != true {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        return
    }

    bd := chilkat.NewBinData()
    success = rest.FullRequestNoBodyBd("GET",pathPartOfUrl,bd)
    if success != true {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        bd.DisposeBinData()
        return
    }

    // A 200 response is expected for actual success.
    // If we don't get a 200 response, then the response body was not actually
    // the file data, but it was text containing error information.
    if rest.ResponseStatusCode() != 200 {
        sbErrorText := chilkat.NewStringBuilder()
        sbErrorText.AppendBd(bd,"utf-8",0,0)
        fmt.Println(*sbErrorText.GetAsString())
        fmt.Println("-- Failed.")
        rest.DisposeRest()
        bd.DisposeBinData()
        sbErrorText.DisposeStringBuilder()
        return
    }

    // Save to a local file.
    // Change the file path based on your operating system or needs...
    success = bd.WriteFile("c:/temp/qa_output/sample.doc")
    if success != true {
        fmt.Println("Failed to save to local file.")
        rest.DisposeRest()
        bd.DisposeBinData()
        sbErrorText.DisposeStringBuilder()
        return
    }

    fmt.Println("REST Download of MS-Word File was successful.")

    rest.DisposeRest()
    bd.DisposeBinData()
    sbErrorText.DisposeStringBuilder()