Rust

Build an EDIFACT Email Body

Demonstrates the Chilkat Email.SetEdifactBody method, a convenience that constructs the customary MIME headers and body for sending an EDIFACT message. It sets the body to the EDIFACT content, sets Content-Transfer-Encoding to Base64, sets Content-Type to application/EDIFACT (with a name attribute from the 2nd argument), and sets Content-Disposition to attachment (with a filename from the 3rd argument). The 4th argument is the charset the message is converted to before Base64 encoding. The subject, recipients, and FROM are left unchanged.

Background: EDIFACT is a long-standing international standard for Electronic Data Interchange (EDI) — structured business documents such as purchase orders (ORDERS) and invoices (INVOIC) exchanged between trading partners. Sending EDIFACT over email requires wrapping the payload in a specific set of MIME headers; SetEdifactBody handles that boilerplate so the message is formatted the way EDI systems expect.

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Rust

// Demonstrates the SetEdifactBody method, which builds a typical email for sending an
// EDIFACT message.  It sets the body to the EDIFACT content, sets Content-Transfer-Encoding
// to Base64, Content-Type to application/EDIFACT (with a name attribute), and
// Content-Disposition to attachment (with a filename).  The fourth argument is the charset.

let email = chilkat::Email::new();
email.set_subject("EDIFACT ORDERS message");
email.set_from("edi@example.com");
let _ = email.add_to("Trading Partner", "partner@example.com");

// The EDIFACT message content (an ORDERS interchange, abbreviated here).
let edi = "UNA:+.? 'UNB+UNOB:1+SENDER+RECEIVER+260710:1200+1'UNH+1+ORDERS:D:96A:UN'BGM+220+ORD12345+9'UNT+3+1'UNZ+1+1'".to_string();

// Build the EDIFACT email body.
email.set_edifact_body(&edi, "order.edi", "order.edi", "iso-8859-1");

println!("{}", email.get_mime().unwrap_or_default());