Swift

Set a MIME Body from Transfer-Encoded Text

Demonstrates the Chilkat Mime.SetBodyFromEncoded method, which sets the body from already transfer-encoded text. The first argument is the encoding (base64 or quoted-printable) and the second is the encoded text.

Background: Sometimes you already hold content in its encoded form — a Base64 string from a database or another API — and re-decoding just to have Chilkat re-encode it is wasteful. This method stores the encoded text as-is and records the matching transfer encoding, so the body is correct without a needless round trip. Only the standard reversible encodings, Base64 and quoted-printable, are accepted.

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Swift


func chilkatTest() {
    var success: Bool = false

    //  Demonstrates the Mime.SetBodyFromEncoded method, which sets the body from already transfer-
    //  encoded text.  The 1st argument is the encoding ("base64" or "quoted-printable") and the 2nd is
    //  the encoded text.

    let mime = CkoMime()!

    mime.contentType = "text/plain"

    //  The body is provided already Base64-encoded; Chilkat stores it without re-encoding.
    var base64Body: String? = "SGVsbG8sIHRoaXMgaXMgdGhlIGJvZHku"
    success = mime.setBody(fromEncoded: "base64", str: base64Body)
    if success == false {
        print("\(mime.lastErrorText!)")
        return
    }

    //  The decoded body is the original text.
    var decoded: String? = mime.getBodyDecoded()
    if mime.lastMethodSuccess == false {
        print("\(mime.lastErrorText!)")
        return
    }

    print("\(decoded!)")

}