Rust
SendRawEmail (HTML Email with PDF Attachment)

Demonstrates how to use the SES SendRawEmail action to send an email with an attachment. Note: The total size of an SES email cannot exceed 10MB.
See SES SendRawEmail for more information.
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// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// Let's first prepare the email to be sent..
let email = chilkat::Email::new();
email.set_charset("utf-8");
email.set_subject("Test email with PDF attachment.");
email.set_html_body("<html><body><p>This is a test <b>HTML email with a PDF attachment</b></p></body></html>");

// The AddFileAttachment method returns the content-type selected based on the 
// file extension.   This example has no need of using the return value..
let Ok(content_type) = email.add_file_attachment("qa_data/pdf/fishing.pdf") else {
    println!("{}", email.last_error_text());
    return;
};

// Add the From header, and some recipients.
// The From address should be an email address verified for use
// as a sender for your Amazon SES account.
// The From address will also be the Source parameter for the SES SendRawEmail request.
email.set_from("Chilkat Software <admin@chilkatdownload.com>");

// Add recipients...
// Note: We DO NOT add BCC recipients to the email.  A BCC address should not be
// present in the MIME header of the email (otherwise it would not be "blind" because
// other recipients would be able to see it).
// These same addresses will be added as parameters to the SendRawEmail request.
// (BCC addresses are added as parameters at that time.)
let _ = email.add_to("Mr. Simulator", "success@simulator.amazonses.com");
let _ = email.add_cc("Chilkat Support", "support@chilkatsoft.com");
let _ = email.add_cc("Some Yahoo", "somebody@yahoo.com");

// Get the MIME of the email to be sent.
let mime_str = email.get_mime().unwrap_or_default();

// We'll need the MIME base64 encoded for the SES REST request..
let crypt = chilkat::Crypt2::new();
let mime_base64 = crypt.encode_string(&mime_str, "utf-8", "base64").unwrap_or_default();

// OK.. our MIME email is prepared.  Now use Chilkat REST to send it..

let rest = chilkat::Rest::new();

// Connect to the Amazon AWS REST server.
// such as https://email.us-west-2.amazonaws.com/
let b_tls = true;
let port = 443;
let b_auto_reconnect = true;
let _ = rest.connect("email.us-west-2.amazonaws.com", port, b_tls, b_auto_reconnect).is_ok();

// Provide AWS credentials for the REST call.
let auth_aws = chilkat::AuthAws::new();
auth_aws.set_access_key("AWS_ACCESS_KEY");
auth_aws.set_secret_key("AWS_SECRET_KEY");
// the region should match our URL above..
auth_aws.set_region("us-west-2");
auth_aws.set_service_name("ses");

let _ = rest.set_auth_aws(&auth_aws);

let _ = rest.add_query_param("Action", "SendRawEmail");

let _ = rest.add_query_param("RawMessage.Data", &mime_base64);

// Add up to 100 TO, CC, and BCC recipients.
// If your SES account is still in the sandbox, you also must verify every recipient email address except for the recipients 
// provided by the Amazon SES mailbox simulator. (See http://docs.aws.amazon.com/ses/latest/DeveloperGuide/mailbox-simulator.html)
let _ = rest.add_query_param("Destination.ToAddresses.member.1", "success@simulator.amazonses.com");
// Please do not test by sending email to Chilkat (Thank You!)
// Please do not test by sending email to Chilkat (Thank You!)
// Please do not test by sending email to Chilkat (Thank You!)
let _ = rest.add_query_param("Destination.CcAddresses.member.1", "support@chilkatsoft.com");
let _ = rest.add_query_param("Destination.CcAddresses.member.2", "somebody@yahoo.com");
let _ = rest.add_query_param("Destination.BccAddresses.member.1", "somebody@gmail.com");

let _ = rest.add_query_param("Source", "admin@chilkatdownload.com");

// Because there may be a large amount of data in the query params, use a POST
// where the params are sent in the body of the HTTP Request.
let Ok(response_xml) = rest.full_request_form_url_encoded("POST", "/") else {
    println!("{}", rest.last_error_text());
    return;
};

// A successful response will have a status code equal to 200.
if rest.response_status_code() != 200 {
    println!("response status code = {}", rest.response_status_code());
    println!("response status text = {}", rest.response_status_text());
    println!("response header: {}", rest.response_header());
    println!("response body: {}", response_xml);
    return;
}

// Examine the successful XML response.
let xml = chilkat::Xml::new();
let _ = xml.load_xml(&response_xml);
println!("{}", xml.get_xml().unwrap_or_default());

// To get the MessageId
println!("MessageId: {}", xml.chilkat_path("SendEmailResult|MessageId|*").unwrap_or_default());

// A sample successful response:
// <?xml version="1.0" encoding="utf-8" ?>
// <SendEmailResponse xmlns="http://ses.amazonaws.com/doc/2010-12-01/">
//     <SendEmailResult>
//         <MessageId>010101579081d2c1-043c693f-5a23-4c64-a8c1-66187d3725a0-000000</MessageId>
//     </SendEmailResult>
//     <ResponseMetadata>
//         <RequestId>e2b5b480-8a4e-11e6-85cd-21b1f1f6d432</RequestId>
//     </ResponseMetadata>
// </SendEmailResponse>