Android™

SendGrid Hello World -- Send Simple Email to Single Recipient

See more SendGrid Examples

Sends an email to a single recipient using SendGrid. Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

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

    CkHttp http = new CkHttp();

    // Implements the following CURL command:

    // curl --request POST \
    //   --url https://api.sendgrid.com/v3/mail/send \
    //   --header 'Authorization: Bearer YOUR_API_KEY' \
    //   --header 'Content-Type: application/json' \
    //   --data '{"personalizations": [{"to": [{"email": "recipient@example.com", "name": "Recipient Name"}]}],"from": {"email": "sendeexampexample@example.com"},"subject": "Hello, World!","content": [{"type": "text/plain", "value": "Heya!"}]}'

    // Use the following online tool to generate HTTP code from a CURL command
    // Convert a cURL Command to HTTP Source Code

    // Use this online tool to generate code from sample JSON:
    // Generate Code to Create JSON

    // The following JSON is sent in the request body.

    // {
    //   "personalizations": [
    //     {
    //       "to": [
    //         {
    //           "email": "recipient@example.com",
    //           "name": "Recipient Name"
    //         }
    //       ]
    //     }
    //   ],
    //   "from": {
    //     "email": "sendeexampexample@example.com"
    //   },
    //   "subject": "Hello, World!",
    //   "content": [
    //     {
    //       "type": "text/plain",
    //       "value": "Heya!"
    //     }
    //   ]
    // }

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("personalizations[0].to[0].email","recipient@example.com");
    // The "name" is optional.
    json.UpdateString("personalizations[0].to[0].name","Recipient Name");
    json.UpdateString("from.email","sendeexampexample@example.com");
    json.UpdateString("subject","Hello, World!");
    json.UpdateString("content[0].type","text/plain");
    json.UpdateString("content[0].value","Heya!");

    // Adds the "Authorization: Bearer YOUR_API_KEY" header.
    http.put_AuthToken("YOUR_API_KEY");

    CkHttpResponse resp = new CkHttpResponse();
    success = http.HttpJson("POST","https://api.sendgrid.com/v3/mail/send",json,"application/json",resp);
    if (success == false) {
        Log.i(TAG, http.lastErrorText());
        return;
        }

    if (http.get_LastMethodSuccess() != true) {
        Log.i(TAG, http.lastErrorText());
        }
    else {
        Log.i(TAG, "response status code: " + String.valueOf(resp.get_StatusCode()));
        // Display the response.
        // If successful, the response code is 202 and the response body string is empty.
        // (The response body string may also be empty for error response codes.)
        Log.i(TAG, resp.bodyStr());
        }


  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}