Rust

Get an Email's MIME into a BinData

Demonstrates the Chilkat Email.GetMimeBd method, which serializes the complete RFC822/MIME message (headers, body representations, related items, and attachments) and appends the bytes to a BinData object. This example builds a message, serializes it to a BinData, and prints the byte count.

Background: A BinData holds raw bytes, which is the right container when you want the MIME as binary rather than text — for example to write it directly to a file or socket, hash it, or hand it to another API that expects a byte buffer. It is the binary counterpart to GetMime (string) and GetMimeSb (StringBuilder).

Chilkat Rust Downloads

Download Chilkat for Rust

Rust


// Demonstrates the GetMimeBd method, which serializes the complete RFC822/MIME message
// (headers, bodies, related items, and attachments) and appends the bytes to a BinData
// object.

let email = chilkat::Email::new();
email.set_subject("GetMimeBd example");
email.set_from("alice@example.com");
let _ = email.add_to("Bob", "bob@example.com");
email.set_body("Hello!");

// Append the complete MIME to a BinData object.
let bd_mime = chilkat::BinData::new();
if email.get_mime_bd(&bd_mime).is_err() {
    println!("{}", email.last_error_text());
    return;
}

println!("MIME size (bytes) = {}", bd_mime.num_bytes());