(Go) CardConnect Signature Capture

Demonstrates how to upload a BMP image of a handwritten signature.

This signature capture service augments an existing authorization record with the provided signature data. ...

See https://developer.cardconnect.com/cardconnect-api?lang=json#signature-capture

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

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

    http := chilkat.NewHttp()
    var success bool

    http.SetBasicAuth(true)
    http.SetLogin("API_USERNAME")
    http.SetPassword("API_PASSWORD")

    // Build and send the following JSON:

    // {
    //   "merchid": "MERCHANT_ID",
    //   "retref": "112989260941",
    //   "signature": "BASE64_GZIPPED_BMP_DATA"
    // }

    json := chilkat.NewJsonObject()
    json.UpdateString("merchid","MERCHANT_ID")
    json.UpdateString("retref","106631225001")

    // Load the .bmp containing a 200px x 100px signature.
    bd := chilkat.NewBinData()
    success = bd.LoadFile("qa_data/bmp/signature.bmp")
    // Gzip compress.
    gzip := chilkat.NewGzip()
    success = gzip.CompressBd(bd)
    // Add to the JSON in base64 format
    json.UpdateString("signature",*bd.GetEncoded("base64"))

    url := "https://<site>.cardconnect.com:<port>/cardconnect/rest/sigcap"
    responseStr := http.PutText(url,*json.Emit(),"utf-8","application/json",false,false)
    if http.LastMethodSuccess() == false {
        fmt.Println(http.LastErrorText())
        http.DisposeHttp()
        json.DisposeJsonObject()
        bd.DisposeBinData()
        gzip.DisposeGzip()
        return
    }

    // A response status of 200 indicates potential success.  The JSON response body
    // must be examined to determine if it was truly successful or an error.
    fmt.Println("response status code = ", http.LastStatus())

    jsonResp := chilkat.NewJsonObject()
    jsonResp.Load(*responseStr)
    jsonResp.SetEmitCompact(false)

    fmt.Println("response JSON:")
    fmt.Println(*jsonResp.Emit())

    // A successful response looks like this:

    // {
    //   "resptext": "signature stored",
    //   "retref": "106631225001",
    //   "respcode": "02",
    //   "merchid": "MERCHANT_ID"
    // }

    http.DisposeHttp()
    json.DisposeJsonObject()
    bd.DisposeBinData()
    gzip.DisposeGzip()
    jsonResp.DisposeJsonObject()