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."
  }
}