Rust

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. Rust

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

let http = chilkat::Http::new();

let req = chilkat::HttpRequest::new();

// Load a JSON file containing strings with Polish chars.
let json = chilkat::JsonObject::new();
if json.load_file("qa_data/json/has_polish_chars.json").is_err() {
    println!("{}", json.last_error_text());
    return;
}

// Add the request params expected by the server-side:
req.add_param("tytul", &json.string_of("tytul").unwrap_or_default());
req.add_param("tresc", &json.string_of("tresc").unwrap_or_default());

// Indicate we wish to explicitly send the charset attribute in the HTTP request header.
req.set_send_charset(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.set_http_verb("POST");
req.set_content_type("application/x-www-form-urlencoded");

let resp = chilkat::HttpResponse::new();
if http.http_req("https://www.chilkatsoft.com/echoPost.cshtml", &req, &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

println!("{}", http.last_header());
println!("{}", resp.body_str());

// 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.set_send_charset(true);
req.set_charset("windows-1250");
req.set_http_verb("POST");
req.set_content_type("application/x-www-form-urlencoded");

if http.http_req("https://www.chilkatsoft.com/echoPost.cshtml", &req, &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

println!("{}", http.last_header());
println!("{}", resp.body_str());

// 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>
// --------------------------------------------------