This sample demonstrates how to use SendGrid on Google Compute Engine

See the sample application documentaion for more detailed instructions.

For more information about SendGrid, see their documentation.

To run the sample, you will need to do the following:

1. Create a SendGrid Account. As of September 2015, Google users start with 25,000 free emails per month.

2. Create a compute instance on the Google Cloud Platform Developer's Console

3. SSH into the instance you created

4. Update packages and install required packages

    sudo apt-get update && sudo apt-get install git-core openjdk-8-jdk maven 

5. Clone the repo

    git clone https://github.com/GoogleCloudPlatform/java-docs-samples.git 

6. Configure your SendGrid settings in the java class (SENDGRID_API_KEY, SENDGRID_SENDER, TO_EMAIL)

    java-docs-samples/compute/sendgrid/src/main/java/com/example/compute/sendgrid/SendEmailServlet.java 

7. Navigate back to ./sendgrid and use maven to package the class as a jar

    mvn clean package 

8. Switch to the target directory with the jar file and enable execution on that file

    chmod +x compute-sendgrid-1.0-SNAPSHOT-jar-with-dependencies.jar 

9. Make sure that openjdk 8 is the selected java version

    sudo update-alternatives --config java 

10. Execute the jar file and send an email (make sure you are in the target folder)

     java -jar compute-sendgrid-1.0-SNAPSHOT-jar-with-dependencies.jar