C++
Create AMP for Email

Demonstrates how to create an email that has the AMP for Email Format.
See AMP for Email specification for more information.
Chilkat C++ Downloads

C++
#include <CkEmail.h>
#include <CkStringBuilder.h>

void ChilkatSample(void)
    {
    bool success = false;

    //  This example assumes the Chilkat API to have been previously unlocked.
    //  See Global Unlock Sample for sample code.

    CkEmail email;

    email.put_Subject("Sample AMP for Email");
    email.put_From("mary@example.com");
    email.AddTo("Joe","joe@example.com");

    //  Create the following AMP for Email HTML

    //  <!doctype html>
    //  <html amp4email>
    //  <head>
    //    <meta charset="utf-8">
    //    <style amp4email-boilerplate>body{visibility:hidden}</style>
    //    <script async src="https://cdn.ampproject.org/v0.js"></script>
    //  </head>
    //  <body>
    //  Hello, world.
    //  </body>
    //  </html>

    CkStringBuilder sbAmp4Html;
    sbAmp4Html.Append("<!doctype html>");
    sbAmp4Html.Append("<html amp4email>");
    sbAmp4Html.Append("<head>");
    sbAmp4Html.Append("<meta charset=\"utf-8\">");
    sbAmp4Html.Append("<style amp4email-boilerplate>body{visibility:hidden}</style>");
    sbAmp4Html.Append("<script async src=\"https://cdn.ampproject.org/v0.js\"></script>");
    sbAmp4Html.Append("</head>");
    sbAmp4Html.Append("<body>");
    sbAmp4Html.Append("Hello, world.");
    sbAmp4Html.Append("</body>");
    sbAmp4Html.Append("</html>");

    //  We want to build a multipart/alternative email, where the 1st alternative body
    //  is text/plain, the 2nd is text/x-amp-html, and the last is text/html.
    //  (Some email clients will only render the last MIME part, so we recommend placing the text/x-amp-html MIME part before the text/html MIME part.)

    //  First create a plain-text email body:
    email.AddPlainTextAlternativeBody("Hello World in plain text!");

    //  Now add the text/x-amp-html.
    email.SetTextBody(sbAmp4Html.getAsString(),"text/x-amp-html");

    //  Now add an HTML body..
    email.AddHtmlAlternativeBody("<span>Hello World in HTML!</span>");

    //  See what we have:
    std::cout << email.getMime() << "\r\n";

    //  This is the result:

    //  MIME-Version: 1.0
    //  Date: Thu, 30 May 2019 09:37:56 -0500
    //  Message-ID: <923A689FF657170A9F662B4CE87978AB1EBD4DBD@CHILKATSLICE>
    //  Content-Type: multipart/alternative;
    //   boundary="------------040205090807060906020803"
    //  X-Priority: 3 (Normal)
    //  Subject: Sample AMP for Email
    //  From: mary@example.com
    //  To: Joe <joe@example.com>
    //  
    //  --------------040205090807060906020803
    //  Content-Transfer-Encoding: 7bit
    //  Content-Type: text/plain; charset=us-ascii; format=flowed
    //  
    //  Hello World in plain text!
    //  --------------040205090807060906020803
    //  Content-Transfer-Encoding: 7bit
    //  Content-Type: text/x-amp-html; charset=us-ascii
    //  
    //  <!doctype html><html amp4email><head><meta charset="utf-8"><style amp4email-boilerplate>body{visibility:hidden}</style><script async src="https://cdn.ampproject.org/v0.js"></script></head><body>Hello, world.</body></html>
    //  --------------040205090807060906020803
    //  Content-Transfer-Encoding: 7bit
    //  Content-Type: text/html; charset=us-ascii
    //  
    //  <span>Hello World in HTML!</span>
    //  
    //  --------------040205090807060906020803--
    }