sendgrid/sendgrid-java


The Official SendGrid Led, Community Driven Java API Library

https://sendgrid.com

License: MIT

Language: Java

Keywords: email, java, sendgrid, transactional-emails


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This library allows you to quickly and easily use the SendGrid Web API v3 via Java.

Version 3.X.X of this library provides full support for all SendGrid Web API v3 endpoints, including the new v3 /mail/send.

This library represents the beginning of a new path for SendGrid. We want this library to be community driven and SendGrid led. We need your help to realize this goal. To help make sure we are building the right things in the right order, we ask that you create issues and pull requests or simply upvote or comment on existing issues or pull requests.

Please browse the rest of this README for further details.

We appreciate your continued support, thank you!

Table of Contents

Installation

Prerequisites

  • Java version Oracle JDK 7, 8 or OpenJDK 7
  • The SendGrid service, starting at the free level to send up to 40,000 emails for the first 30 days, then send 100 emails/day free forever or check out our pricing.

Setup Environment Variables

Update the development environment with your SENDGRID_API_KEY, for example:

  1. Copy the sample environment file to a new file
cp .env_sample .env
  1. Edit the new .env to add your API key
  2. Source the .env file to set rhe variable in the current session
source .env

Install Package

Choose your installation method - Maven w/ Gradle (recommended), Maven or Jar file.

via Maven w/ Gradle

Add the following to your build.gradle file in the root of your project.

...
dependencies {
  ...
  implementation 'com.sendgrid:sendgrid-java:4.3.0'
}

repositories {
  mavenCentral()
}
...

via Maven

mvn install

via jar file

You can just drop the jar file in. It's a fat jar - it has all the dependencies built in.

sendgrid-java.jar

Dependencies

Quick Start

Hello Email

The following is the minimum needed code to send an email with the /mail/send Helper (here is a full example):

With Mail Helper Class

import com.sendgrid.*;
import java.io.IOException;

public class Example {
  public static void main(String[] args) throws IOException {
    Email from = new Email("test@example.com");
    String subject = "Sending with SendGrid is Fun";
    Email to = new Email("test@example.com");
    Content content = new Content("text/plain", "and easy to do anywhere, even with Java");
    Mail mail = new Mail(from, subject, to, content);

    SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
    Request request = new Request();
    try {
      request.setMethod(Method.POST);
      request.setEndpoint("mail/send");
      request.setBody(mail.build());
      Response response = sg.api(request);
      System.out.println(response.getStatusCode());
      System.out.println(response.getBody());
      System.out.println(response.getHeaders());
    } catch (IOException ex) {
      throw ex;
    }
  }
}

The Mail constructor creates a personalization object for you. Here is an example of how to add to it.

Without Mail Helper Class

The following is the minimum needed code to send an email without the /mail/send Helper (here is a full example):

import com.sendgrid.*;
import java.io.IOException;

public class Example {
  public static void main(String[] args) throws IOException {
    try {
      SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
      Request request = new Request();
      request.setMethod(Method.POST);
      request.setEndpoint("mail/send");
      request.setBody("{\"personalizations\":[{\"to\":[{\"email\":\"test@example.com\"}],\"subject\":\"Sending with SendGrid is Fun\"}],\"from\":{\"email\":\"test@example.com\"},\"content\":[{\"type\":\"text/plain\",\"value\": \"and easy to do anywhere, even with Java\"}]}");
      Response response = sg.api(request);
      System.out.println(response.getStatusCode());
      System.out.println(response.getBody());
      System.out.println(response.getHeaders());
    } catch (IOException ex) {
      throw ex;
    }
  }
}

General v3 Web API Usage

import com.sendgrid.*;
import java.io.IOException;

public class Example {
  public static void main(String[] args) throws IOException {
    SendGrid sg = new SendGrid(System.getenv("SENDGRID_API_KEY"));
    try {
      Request request = new Request();
      request.setMethod(Method.GET);
      request.setEndpoint("api_keys");
      Response response = sg.api(request);
      System.out.println(response.getStatusCode());
      System.out.println(response.getBody());
      System.out.println(response.getHeaders());
    } catch (IOException ex) {
      throw ex;
    }
  }
}

Usage

Use Cases

Examples of common API use cases, such as how to send an email with a transactional template.

Announcements

Please see our announcement regarding breaking changes. Your support is appreciated!

All updates to this library are documented in our CHANGELOG and releases. You may also subscribe to email release notifications for releases and breaking changes.

Roadmap

If you are interested in the future direction of this project, please take a look at our open issues and pull requests. We would love to hear your feedback.

How to Contribute

We encourage contribution to our libraries (you might even score some nifty swag), please see our CONTRIBUTING guide for details.

Quick links:

Troubleshooting

Please see our troubleshooting guide for common library issues.

About

sendgrid-java is guided and supported by the SendGrid Developer Experience Team.

Please email the Developer Experience Team here in case of any queries.

sendgrid-java is maintained and funded by SendGrid, Inc. The names and logos for sendgrid-java are trademarks of SendGrid, Inc.

License

The MIT License (MIT)

Project Statistics

Sourcerank 10
Repository Size 4.28 MB
Stars 257
Forks 290
Watchers 193
Open issues 164
Dependencies 10
Contributors 63
Tags 42
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Top Contributors See all

Elmer Thomas Mot Matt Bernier Eddie Zaneski Dmitry Avershin sccalabr Alex Andrew Trimble Marcus Vinícius Chandler Weiner Diego Camargo Anshul Singhal John Claus Yamil Asusta Shashank Sharma Cícero Pablo Brandon West Julian Jacques Maurer Sean Staley Rimantas

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Recent Tags See all

v4.3.0 October 11, 2018
v3.2.2 May 08, 2018
v3.2.2 May 08, 2018
v4.2.1 May 08, 2018
v4.2.0 May 04, 2018
v4.1.2 October 31, 2017
v4.1.1 October 10, 2017
v4.1.0 August 17, 2017
v4.0.1 May 22, 2017
v4.0.0 May 19, 2017
v3.2.1 April 13, 2017
v3.2.0 March 22, 2017
v3.1.0 October 11, 2016
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