Rust

URL-Encode a MIME Body

Demonstrates the Chilkat Mime.UrlEncodeBody method, which replaces the current body with an application/x-www-form-urlencoded-style representation using the named charset. The only argument is the charset; it is a void method.

Background: This transforms the body into the form-encoding used by HTML form submissions — spaces to +, reserved characters to percent-escapes — interpreting the text through the given charset first so non-ASCII characters encode correctly. It is a niche operation for constructing form-style payloads within a MIME part.

Chilkat Rust Downloads

Download Chilkat for Rust

Rust


// Demonstrates the Mime.UrlEncodeBody method, which replaces the current body with an
// application/x-www-form-urlencoded representation using the named charset.  The only argument is
// the charset.  It is a void method.

let mime = chilkat::Mime::new();

if mime.set_body_from_plain_text("name=John Doe & city=New York").is_err() {
    println!("{}", mime.last_error_text());
    return;
}

// URL-encode the body: spaces become "+", reserved characters become %-escapes.
mime.url_encode_body("utf-8");

let Ok(encoded_body) = mime.get_body_decoded() else {
    println!("{}", mime.last_error_text());
    return;
};

println!("{}", encoded_body);