Java

Mailgun Send Send HTML Email with Attachments and HTML Images

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Sends an HTML email with images and attachments. Chilkat2 Java

import com.chilkatsoft.chilkat2.BinData;
import com.chilkatsoft.chilkat2.ChilkatException;
import com.chilkatsoft.chilkat2.Http;
import com.chilkatsoft.chilkat2.HttpRequest;
import com.chilkatsoft.chilkat2.HttpResponse;
import com.chilkatsoft.chilkat2.JsonObject;
import com.chilkatsoft.chilkat2.StringBuilder;

public class ChilkatExample {

    public static void main(String[] args) {
        // This example assumes the Chilkat API to have been previously unlocked.
        // See Global Unlock Sample for sample code.

        Http http = new Http();

        http.setLogin("api");
        http.setPassword("sending_api_key");        // Replace with your actual sending API key.

        HttpRequest req = new HttpRequest();
        req.setHttpVerb("POST");
        req.setPath("/v3/YOUR_DOMAIN_NAME/messages");
        req.setContentType("multipart/form-data");

        // Change YOUR_DOMAIN_NAME to something like "mg.your-domain.com".
        req.addParam("from", "Your Name <mailgun@YOUR_DOMAIN_NAME>");
        req.addParam("to", "Joe Example <joe@example.com>");
        req.addParam("subject", "Hello Joe Example");
        req.addParam("html", "<html><body><b>This is the HTML body</b><br><img src=\"cid:cidStarfish.jpg\"></body></html>");

        // An a attachd file
        BinData bd = new BinData();
        try {
            bd.loadFile("qa_data/hamlet.zip");
        } catch (ChilkatException e) {
            System.out.println("Failed to load file attachment.");
            return;
        }

        req.addBdForUpload("attachment", "hamlet.zip", bd, "application/zip");

        // add an image as CID
        try {
            bd.loadFile("qa_data/jpg/starfish.jpg");
        } catch (ChilkatException e) {
            System.out.println("Failed to load HTML image.");
            return;
        }

        req.addBdForUpload("inline", "cidStarfish.jpg", bd, "image/jpeg");

        HttpResponse resp = new HttpResponse();
        try {
            http.httpSReq("api.mailgun.net", 443, true, req, resp);
        } catch (ChilkatException e) {
            System.out.println(e.getLastErrorText());
            return;
        }

        StringBuilder sbResponseBody = new StringBuilder();
        resp.getBodySb(sbResponseBody);
        JsonObject jResp = new JsonObject();
        jResp.loadSb(sbResponseBody);
        jResp.setEmitCompact(false);

        System.out.println("Response Body:");
        System.out.println(jResp.emit());

        int respStatusCode = resp.getStatusCode();
        System.out.println("Response Status Code = " + respStatusCode);
        if (respStatusCode >= 400) {
            System.out.println("Response Header:");
            System.out.println(resp.getHeader());
            System.out.println("Failed.");
            return;
        }

        // Sample JSON response:
        // (Sample code for parsing the JSON response is shown below)

        // {
        //   "id": "<20210429234809.1.2D550E1C94D3D98F@sandbox0e542e4c577f4bbb98c8bf6b6bca727b.mailgun.org>",
        //   "message": "Queued. Thank you."
        // }

        // Sample code for parsing the JSON response...
        // Use the following online tool to generate parsing code from sample JSON:
        // Generate Parsing Code from JSON

        String id = jResp.stringOf("id");
        String message = jResp.stringOf("message");
    }
}