(Swift 3,4,5...) Add Binary Email Attachment from In-Memory Bytes

Demonstrates how to add an attachment to an email via the AddDataAttachment and AddDataAttachment2 methods.

Chilkat Downloads for the Swift Programming Language MAC OS X (Cocoa) Objective-C/Swift Libs iOS Objective-C/Swift Libs

func chilkatTest() {
    let email = CkoEmail()!
    var success: Bool

    // First populate a simple email.
    email.subject = "This is the subject."
    email.body = "This is a simple email body."
    email.from = "Chilkat Software <support@chilkatsoft.com>"
    email.add(to: "Some Recipient", emailAddress: "someRecipient@somewhere.com")

    // Load a JPG file.
    // The actual source of your attachment data can come from anywhere.
    // The point here is that we're first getting the bytes in memory, and THEN adding
    // the bytes as an attachment.
    let fac = CkoFileAccess()!
    var jpgBytes: NSData
    jpgBytes = fac.readEntireFile("qa_data/jpg/starfish20.jpg")

    // Add the JPG bytes via AddDataAttachment.
    email.addDataAttachment("tinyStarfish.jpg", content: jpgBytes)

    // We could also add the JPG and explicitly set the content-type w/ AddDataAttachment2
    email.addDataAttachment2("teenyStarfish.jpg", content: jpgBytes, contentType: "image/jpg")

    // Examine the MIME:
    print("\(email.getMime()!)")

    // This is the MIME of the email:
    // (Note: All headers beginning with "CKX-" are automatically removed by Chilkat when sending..)

    // 	MIME-Version: 1.0
    // 	Date: Mon, 17 Oct 2016 19:28:30 -0500
    // 	Message-ID: <44E3519660F8C3B1F0D95F25D1FD5B3840C3E3FE@CHILKAT13>
    // 	Content-Type: multipart/mixed; boundary="------------020509000105040006080600"
    // 	X-Priority: 3 (Normal)
    // 	Subject: This is the subject.
    // 	From: "Chilkat Software" <support@chilkatsoft.com>
    // 	CKX-Bounce-Address: support@chilkatsoft.com
    // 	To: "Some Recipient" <someRecipient@somewhere.com>
    // 
    // 	--------------020509000105040006080600
    // 	Content-Type: text/plain
    // 	Content-Transfer-Encoding: 7bit
    // 
    // 	This is a simple email body.
    // 	--------------020509000105040006080600
    // 	Content-Type: image/jpeg; name="tinyStarfish.jpg"
    // 	Content-Transfer-Encoding: base64
    // 	Content-Disposition: attachment; filename="tinyStarfish.jpg"
    // 
    // 	/9j/4AAQSkZJRgABAQEASABIAAD//gAmRmlsZSB3cml0dGVuIGJ5IEFkb2JlIFBob3Rvc2hvcD8g
    // 	NC4w/9sAQwAQCwwODAoQDg0OEhEQExgoGhgWFhgxIyUdKDozPTw5Mzg3QEhcTkBEV0U3OFBtUVdf
    // 	YmdoZz5NcXlwZHhcZWdj/9sAQwEREhIYFRgvGhovY0I4QmNjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj
    // 	Y2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj/8IAEQgAFAAUAwERAAIRAQMRAf/EABcAAAMBAAAA
    // 	AAAAAAAAAAAAAAIDBAX/xAAYAQADAQEAAAAAAAAAAAAAAAABAgMEAP/aAAwDAQACEAMQAAAB2kZY
    // 	NNEijWKddfTmLgALWH//xAAbEAACAgMBAAAAAAAAAAAAAAABAgMRAAQSE//aAAgBAQABBQL0XqN+
    // 	pM2aqJGMiqFFCyg7z//EABwRAAICAgMAAAAAAAAAAAAAAAERAAIQIQMSUf/aAAgBAwEBPwHqU5aq
    // 	Axx+y1tMQl4elj//xAAcEQEAAQUBAQAAAAAAAAAAAAABEQACEBIhA1H/2gAIAQIBAT8B3Bhqy7Zc
    // 	enyiwmGgDhiOzj//xAAdEAABAwUBAAAAAAAAAAAAAAABAAIREBIhIkFR/9oACAEBAAY/ArZyn+Cg
    // 	xtxWuJaoCnqDuin/xAAcEAABBAMBAAAAAAAAAAAAAAABABEhYRAxQVH/2gAIAQEAAT8hkEwPUUR9
    // 	DYfE4nxtRpIkBTsayuALIiuY/9oADAMBAAIAAwAAABDWPTsf/8QAGhEAAwADAQAAAAAAAAAAAAAA
    // 	AAEREDFBIf/aAAgBAwEBPxC0DVPcWm+Ce4OesrkE6bjH/8QAGBEBAQEBAQAAAAAAAAAAAAAAAREA
    // 	QRD/2gAIAQIBAT8QahMiOc8YgSrnTY3ELclHXn//xAAcEAEBAAIDAQEAAAAAAAAAAAABEQAhMUFx
    // 	EFH/2gAIAQEAAT8Qn3igmSZSj+c4N4zapMy9IjFV98wncN2iuLFsCEbDGxQkI6RO/n//2Q==
    // 
    // 	--------------020509000105040006080600
    // 	Content-Type: image/jpg; name="teenyStarfish.jpg"
    // 	Content-Transfer-Encoding: base64
    // 	Content-Disposition: attachment; filename="teenyStarfish.jpg"
    // 
    // 	/9j/4AAQSkZJRgABAQEASABIAAD//gAmRmlsZSB3cml0dGVuIGJ5IEFkb2JlIFBob3Rvc2hvcD8g
    // 	NC4w/9sAQwAQCwwODAoQDg0OEhEQExgoGhgWFhgxIyUdKDozPTw5Mzg3QEhcTkBEV0U3OFBtUVdf
    // 	YmdoZz5NcXlwZHhcZWdj/9sAQwEREhIYFRgvGhovY0I4QmNjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj
    // 	Y2NjY2NjY2NjY2NjY2NjY2NjY2NjY2NjY2Nj/8IAEQgAFAAUAwERAAIRAQMRAf/EABcAAAMBAAAA
    // 	AAAAAAAAAAAAAAIDBAX/xAAYAQADAQEAAAAAAAAAAAAAAAABAgMEAP/aAAwDAQACEAMQAAAB2kZY
    // 	NNEijWKddfTmLgALWH//xAAbEAACAgMBAAAAAAAAAAAAAAABAgMRAAQSE//aAAgBAQABBQL0XqN+
    // 	pM2aqJGMiqFFCyg7z//EABwRAAICAgMAAAAAAAAAAAAAAAERAAIQIQMSUf/aAAgBAwEBPwHqU5aq
    // 	Axx+y1tMQl4elj//xAAcEQEAAQUBAQAAAAAAAAAAAAABEQACEBIhA1H/2gAIAQIBAT8B3Bhqy7Zc
    // 	enyiwmGgDhiOzj//xAAdEAABAwUBAAAAAAAAAAAAAAABAAIREBIhIkFR/9oACAEBAAY/ArZyn+Cg
    // 	xtxWuJaoCnqDuin/xAAcEAABBAMBAAAAAAAAAAAAAAABABEhYRAxQVH/2gAIAQEAAT8hkEwPUUR9
    // 	DYfE4nxtRpIkBTsayuALIiuY/9oADAMBAAIAAwAAABDWPTsf/8QAGhEAAwADAQAAAAAAAAAAAAAA
    // 	AAEREDFBIf/aAAgBAwEBPxC0DVPcWm+Ce4OesrkE6bjH/8QAGBEBAQEBAQAAAAAAAAAAAAAAAREA
    // 	QRD/2gAIAQIBAT8QahMiOc8YgSrnTY3ELclHXn//xAAcEAEBAAIDAQEAAAAAAAAAAAABEQAhMUFx
    // 	EFH/2gAIAQEAAT8Qn3igmSZSj+c4N4zapMy9IjFV98wncN2iuLFsCEbDGxQkI6RO/n//2Q==
    // 
    // 	--------------020509000105040006080600--
    // 

}