Swift

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).

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Swift


func chilkatTest() {
    var success: Bool = false

    //  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 = CkoEmail()!
    email.subject = "GetMimeBd example"
    email.from = "alice@example.com"
    email.add(to: "Bob", emailAddress: "bob@example.com")
    email.body = "Hello!"

    //  Append the complete MIME to a BinData object.
    let bdMime = CkoBinData()!
    success = email.getMimeBd(bindat: bdMime)
    if success == false {
        print("\(email.lastErrorText!)")
        return
    }

    print("MIME size (bytes) = \(bdMime.numBytes.intValue)")

}