Swift

Send HTTP POST using non-UTF8 such as Windows-1250

See more HTTP Examples

Demonstrates how to specify the character encoding (charset) to be used for the body of an HTTP POST. Swift

func chilkatTest() {
    var success: Bool = false

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

    let http = CkoHttp()!

    let req = CkoHttpRequest()!

    // Load a JSON file containing strings with Polish chars.
    let json = CkoJsonObject()!
    success = json.loadFile(path: "qa_data/json/has_polish_chars.json")
    if success == false {
        print("\(json.lastErrorText!)")
        return
    }

    // Add the request params expected by the server-side:
    req.addParam(name: "tytul", value: json.string(of: "tytul"))
    req.addParam(name: "tresc", value: json.string(of: "tresc"))

    // Indicate we wish to explicitly send the charset attribute in the HTTP request header.
    req.sendCharset = true

    // Send the POST
    // You can send the POST to the URL below.  It will respond with the request body in quoted-printable format.
    // Using quoted-printable, we can easily see the binary bytes for the accented chars.

    req.httpVerb = "POST"
    req.contentType = "application/x-www-form-urlencoded"

    let resp = CkoHttpResponse()!
    success = http.httpReq(url: "https://www.chilkatsoft.com/echoPost.cshtml", request: req, response: resp)
    if success == false {
        print("\(http.lastErrorText!)")
        return
    }

    print("\(http.lastHeader!)")
    print("\(resp.bodyStr!)")

    // Sample output:

    // --------------------------------------------------
    // POST /echoPost.cshtml HTTP/1.1
    // Host: www.chilkatsoft.com
    // Content-Type: application/x-www-form-urlencoded; charset=utf-8
    // Content-Length: 79
    // 
    // <pre>tytul=3DPrzyk%C5%82ad&amp;tresc=3DPrzyk%C5%82ad
    // %82oszenie</pre>
    // --------------------------------------------------

    // We can see by the %C5%82 that utf-8 was sent, because %C5%82 is the 2-byte representation of a particular Polish char.

    // -----------------------
    // However.. we can change the charset used for the HTTP request by specifying the request object's charset.

    req.sendCharset = true
    req.charset = "windows-1250"
    req.httpVerb = "POST"
    req.contentType = "application/x-www-form-urlencoded"

    success = http.httpReq(url: "https://www.chilkatsoft.com/echoPost.cshtml", request: req, response: resp)
    if success == false {
        print("\(http.lastErrorText!)")
        return
    }

    print("\(http.lastHeader!)")
    print("\(resp.bodyStr!)")

    // Sample output...
    // You can see how the bytes used for the Polish chars are now 1-byte per char (i.e. using Windows-1250) 

    // --------------------------------------------------
    // POST /echoPost.cshtml HTTP/1.1
    // Host: www.chilkatsoft.com
    // Content-Type: application/x-www-form-urlencoded; charset=windows-1250
    // Content-Length: 70
    // 
    // <pre>tytul=3DPrzyk%B3ad&amp;tresc=3DPrzyk%B3ad
    // e</pre>
    // --------------------------------------------------

}