Java
Create GMail Draft

Demonstrates how to create a new GMail draft email.
Chilkat Java Downloads

Java
import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    boolean success = false;

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

    //  Use the Chilkat Email API to create or load an email.
    CkEmail email = new CkEmail();
    email.put_Subject("This is a test GMail email created using Chilkat.");
    email.put_Charset("utf-8");
    email.AddPlainTextAlternativeBody("This is a test");
    email.AddHtmlAlternativeBody("<html><body><p>This is a <b>test</b></body></html>");

    //  We'll need to get the full MIME of the email encoded to a base64url string.
    CkStringBuilder sbMime = new CkStringBuilder();
    email.GetMimeSb(sbMime);
    sbMime.Encode("base64url","utf-8");

    //  The body of the HTTP request will be JSON..
    CkJsonObject json = new CkJsonObject();
    json.UpdateSb("message.raw",sbMime);

    //  Upload the email to GMail as a draft.
    CkHttp http = new CkHttp();
    http.put_AuthToken("GMAIL-ACCESS-TOKEN");

    String url = "https://www.googleapis.com/gmail/v1/users/me/drafts";
    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpJson("POST",url,json,"application/json",resp);
    if (success == false) {
        System.out.println(http.lastErrorText());
        return;
        }

    //  A status code of 200 indicates success.
    System.out.println("Response status code: " + resp.get_StatusCode());
    System.out.println("Response body:");
    System.out.println(resp.bodyStr());

    //  The response body contains JSON.
    //  Use the online tool at Generate JSON Parsing Code
    //  to generate JSON parsing code.

    //  A sample successful JSON response:

    //  {
    //   "id": "r-2607584557788895307",
    //   "message": {
    //    "id": "166f09932c662e93",
    //    "threadId": "166f09932c662e93",
    //    "labelIds": [
    //     "DRAFT"
    //    ]
    //   }
    //  }
  }
}