(Go) Create Apple Watch HTML (text/watch-html) Email

Demonstrates how to create an Apple Watch text/watch-html email.

Note: This example requires Chilkat v9.5.0.68 or greater.

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    // This example will produce an email such as:

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	To: to@example.org
    // 	Content-Type: multipart/alternative; boundary="------------080904030200000307060803"
    // 
    // 	--------------080904030200000307060803
    // 	Content-Type: text/plain; charset=utf-8
    // 	Content-Transfer-Encoding: quoted-printable
    // 	Content-Disposition: inline
    // 
    // 	This is the plain text part.
    // 	--------------080904030200000307060803
    // 	Content-Type: text/watch-html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<b>This is the Watch HTML part</b>
    // 	--------------080904030200000307060803
    // 	Content-Type: text/html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<p>This is the standard HTML part</p>
    // 	--------------080904030200000307060803--

    // Create a new email instance to get the default auto-created fields.
    email := chilkat.NewEmail()
    email.SetBody("This is the plain text part.")
    email.SetSubject("Apple Watch Example")
    email.SetFrom("from@example.org")
    email.AddTo("","to@example.org")

    fmt.Println(*email.GetMime())
    fmt.Println("--")

    // This is the MIME so far:
    // (Chilkat automatically removes CKX-* headers when sending email.)

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	Content-Type: text/plain; format=flowed
    // 	Content-Transfer-Encoding: 7bit
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	CKX-Bounce-Address: from@example.org
    // 	To: to@example.org
    // 
    // 	This is the plain text part.

    // We'll use the Chilkat MIME object to build it.
    // The MIME API provides more flexibility..
    mime := chilkat.NewMime()
    mime.LoadMime(*email.GetMime())

    // Convert this MIME to multipart/alternative.
    mime.ConvertToMultipartAlt()

    fmt.Println(*mime.GetMime())
    fmt.Println("--")

    // We now have this MIME:

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	CKX-Bounce-Address: from@example.org
    // 	To: to@example.org
    // 	Content-Type: multipart/alternative; boundary="------------080904030200000307060803"
    // 
    // 	--------------080904030200000307060803
    // 	Content-Type: text/plain; format=flowed
    // 	Content-Transfer-Encoding: 7bit
    // 
    // 	This is the plain text part.
    // 	--------------080904030200000307060803--

    // If we desire a particular charset, encoding, or disposition..
    partPlainText := mime.GetPart(0)
    partPlainText.SetCharset("utf-8")
    partPlainText.SetDisposition("inline")
    partPlainText.SetEncoding("quoted-printable")
    partPlainText.DisposeMime()

    // Create the text/watch-html MIME part and add it.
    partWatchHtml := chilkat.NewMime()
    partWatchHtml.SetContentType("text/watch-html")
    partWatchHtml.SetCharset("utf-8")
    partWatchHtml.SetDisposition("inline")
    partWatchHtml.SetEncoding("quoted-printable")
    partWatchHtml.SetBody("<b>This is the Watch HTML part</b>")
    mime.AppendPart(partWatchHtml)

    fmt.Println(*mime.GetMime())
    fmt.Println("--")

    // We now have this MIME:

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	CKX-Bounce-Address: from@example.org
    // 	To: to@example.org
    // 	Content-Type: multipart/alternative; boundary="------------080904030200000307060803"
    // 
    // 	--------------080904030200000307060803
    // 	Content-Type: text/plain; charset=utf-8
    // 	Content-Transfer-Encoding: quoted-printable
    // 	Content-Disposition: inline
    // 
    // 	This is the plain text part.
    // 	--------------080904030200000307060803
    // 	Content-Type: text/watch-html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<b>This is the Watch HTML part</b>
    // 	--------------080904030200000307060803--

    // Create the text/html MIME part and add it.
    partHtml := chilkat.NewMime()
    partHtml.SetContentType("text/html")
    partHtml.SetCharset("utf-8")
    partHtml.SetDisposition("inline")
    partHtml.SetEncoding("quoted-printable")
    partHtml.SetBody("<p>This is the standard HTML part</p>")
    mime.AppendPart(partHtml)

    fmt.Println(*mime.GetMime())
    fmt.Println("--")

    // We now have this MIME:

    // 	MIME-Version: 1.0
    // 	Date: Fri, 02 Jun 2017 09:17:06 -0500
    // 	Message-ID: <E6F1F17104442EA09740322D3E2E78806C87FB80@CHILKAT13>
    // 	X-Priority: 3 (Normal)
    // 	Subject: Apple Watch Example
    // 	From: from@example.org
    // 	CKX-Bounce-Address: from@example.org
    // 	To: to@example.org
    // 	Content-Type: multipart/alternative; boundary="------------080904030200000307060803"
    // 
    // 	--------------080904030200000307060803
    // 	Content-Type: text/plain; charset=utf-8
    // 	Content-Transfer-Encoding: quoted-printable
    // 	Content-Disposition: inline
    // 
    // 	This is the plain text part.
    // 	--------------080904030200000307060803
    // 	Content-Type: text/watch-html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<b>This is the Watch HTML part</b>
    // 	--------------080904030200000307060803
    // 	Content-Type: text/html; charset=utf-8
    // 	Content-Disposition: inline
    // 	Content-Transfer-Encoding: quoted-printable
    // 
    // 	<p>This is the standard HTML part</p>
    // 	--------------080904030200000307060803--

    // Load the email object with this MIME, and we're good to go..
    email.SetFromMimeText(*mime.GetMime())
    fmt.Println(*email.GetMime())

    email.DisposeEmail()
    mime.DisposeMime()
    partWatchHtml.DisposeMime()
    partHtml.DisposeMime()