This Java module allows you to quickly and easily send emails through SendGrid using Java.
Version 2.x.x, behaves differently in the addTo method. In the past this method defaulted to using the SMTPAPI header. Now you must explicitly call the addSmtpApiTo method. More on the SMTPAPI section.
// SendGridExample.java
import com.sendgrid.*;
public class SendGridExample {
public static void main(String[] args) {
SendGrid sendgrid = new SendGrid("SENDGRID USERNAME", "SENDGRID_PASSWORD");
SendGrid.Email email = new SendGrid.Email();
email.addTo("[email protected]");
email.setFrom("[email protected]");
email.setSubject("Hello World");
email.setText("My first email with SendGrid Java!");
try {
SendGrid.Response response = sendgrid.send(email);
System.out.println(response.getMessage());
}
catch (SendGridException e) {
System.err.println(e);
}
}
}Compile and run this example with
$ javac -classpath sendgrid-1.2.1-jar.jar:. SendGridExample.java && java -classpath sendgrid-1.2.1-jar.jar:. SendGridExampleChoose your installation method - Maven w/ Gradle (recommended) or Jar file.
Add the following to your build.gradle file in the root of your project.
...
dependencies {
...
compile 'com.sendgrid:sendgrid-java:2.0.0'
}
repositories {
mavenCentral()
}
...Then import the library - in the file appropriate to your Java project.
import com.sendgrid.SendGrid;You can just drop the jar file in. It's a fat jar - it has all the dependencies built in.
import com.sendgrid.*;To begin using this library, initialize the SendGrid object with your SendGrid credentials.
import com.sendgrid.SendGrid;
SendGrid sendgrid = new SendGrid("sendgrid_username", "sendgrid_password");Add your message details.
Email email = new Email();
email.addTo("[email protected]");
email.addToName("Example Guy");
email.setFrom("[email protected]");
email.setSubject("Hello World");
email.setText("My first email through SendGrid");Send it.
sendgrid.send(email);email.addTo("[email protected]");
// or
email.addTo(["[email protected]", "[email protected]"]);
// or
email.addTo("[email protected]", "Foo Bar");email.setTo(["[email protected]", "[email protected]"]);email.addToName("Foo");
// or
email.addToName(["Foo", "Bar"]);email.setToName(["Foo", "Bar"]);email.addCc("[email protected]");
// or
email.addCc(["[email protected]", "[email protected]"]);email.setCc(["[email protected]", "[email protected]"]);email.addBcc("[email protected]");
// or
email.addBcc(["[email protected]", "[email protected]"]);email.setBcc(["[email protected]", "[email protected]"]);email.setFrom("[email protected]");email.setFromName("Other Dude");email.setReplyTo("[email protected]");email.setSubject("Hello World");email.setText("This is some text of the email.");email.setHtml("<h1>My first email through SendGrid");email.addAttachment("text.txt", "contents");
// or
email.addAttachment("image.png", new File("./image.png"));
// or
email.addAttachment("text.txt", new InputStream(new File("./file.txt")));// First, add an attachment
email.addAttachment("image.png", new File("./image.png"));
// Map the name of the attachment to an ID
email.addContentId("image.png", "ID_IN_HTML")
// Map the ID in the HTML
email.setHtml("<html><body>TEXT BEFORE IMAGE<img src=\"cid:ID_IN_HTML\"></img>AFTER IMAGE</body></html>")SendGrid sendgrid = new SendGrid("SENDGRID USERNAME", "SENDGRID_PASSWORD");
HttpHost proxy = new HttpHost("server", 3128);
CloseableHttpClient http = HttpClientBuilder.create().setProxy(proxy).setUserAgent("sendgrid/" + sendgrid.getVersion() + ";java").build();
sendgrid.setClient(http);The mail object extends the SMTPAPI object which is found in STMAPI-Java.
email.getSMTPAPI();email.addSmtpApiTo("[email protected]");
// or
email.addSmtpApiTo(["[email protected]", "[email protected]"]);email.addSubstitution("key", "value");
JSONObject subs = header.getSubstitutions();email.setSubstitutions("key", ["value1", "value2"]);
JSONObject subs = header.getSubstitutions();email.addUniqueAarg("key", "value");
// or
Map map = new HashMap<String, String>();
map.put("unique", "value");
email.setUniqueArgs(map);
// or
JSONObject map = new JSONObject();
map.put("unique", "value");
email.setUniqueArgs(map);
// or
email.setUniqueArgs(map);
JSONObject args = email.getUniqueArgs();email.addCategory("category");
String[] cats = email.getCategories();email.addSection("key", "section");
JSONObject sections = email.getSections();You can enable and configure Apps.
email.addFilter("filter", "setting", "value");
email.addFilter("filter", "setting", 1);
JSONObject filters = email.getFilters();Example enabling bcc app:
SendGrid sendgrid = new SendGrid("sendgrid_username", "sendgrid_password");
sendgrid.addTo("[email protected]");
...
sendgrid.addFilter("bcc", "enabled", 1);
sendgrid.addFilter("bcc", "email", "[email protected]");email.setASMGroupId(1);email.setSendAt(1409348513);- Fork it
- Create your feature branch (
git checkout -b my-new-feature) - Commit your changes (
git commit -am 'Added some feature') - Push to the branch (
git push origin my-new-feature) - Create new Pull Request
The existing tests in the src/test directory can be run using gradle with the following command:
$ ./gradlew test -i$ ./gradlew buildWe have an example app using this library. This can be helpful to get a grasp on implementing it in your own app.
github.com/scottmotte/sendgrid-java-example
Licensed under the MIT License.