azureeventgridsendevent

Azure Event Grid event Java example

This folder contains a Java application example that handles Event Grids on Microsoft Azure.

It handles an Event Grid and sends events to an Event Grid Topic.

Requirements

• You must have a Microsoft Azure subscription.

• You must have the following installed:

  • Java Development Kit (JDK) 8
  • Apache Maven 3
  • Azure CLI

• The code was written for:

  • Java 8
  • Apache Maven 3
  • Azure SDK for Java: New Client Libraries (Azure Event Grid library v4) (com.azure)

Using the code

• Sign in Azure (Interactively).

  The Azure CLI's default authentication method for logins uses a web browser and access token to sign in.

  1. Run the Azure CLI login command.

     az login

     If the CLI can open your default browser, it will do so and load an Azure sign-in page.

     Otherwise, open a browser page at https://aka.ms/devicelogin and enter the authorization code displayed in your terminal.

     If no web browser is available or the web browser fails to open, use device code flow with az login --use-device-code.

  2. Sign in with your account credentials in the browser.

  Make sure you select your subscription by:

  az account set --subscription <name or id>

• Create an Event Grid Topic.

  An Event Grid topic provides a user-defined endpoint that you post your events to.

  You must create the Event Grid Topic, using the Azure console, do the following actions:

  1. Select Create a resource and chose Event Grid Topic.

  2. On the Event Grid Topics page, select Create.

  3. Choose the Subscription, Resource group, Name and Region for your Event Grid Topic.

  4. Select Create.

  You need the Topic Key and the Topic Endpoint. You can find these within the Event Grid Topic resource on the Azure portal.

• Configure your application.

  The configuration is stored in the app.properties properties file, located in the path src/main/resources. The file content is:

  EventGridTopicKey=<EVENT_GRID_TOPIC_KEY>
  EventGridTopicEndpoint=<EVENT_GRID_TOPIC_ENDPOINT>

  You must edit the file app.properties and replace the values of:

  • <EVENT_GRID_TOPIC_KEY> by the key of the Event Grid Topic.
  • <EVENT_GRID_TOPIC_ENDPOINT> by the topic endpoint in the Event Grid.

  The application uses this information for accessing your Event Grid Topic.

• Run the code.

  Execute the java application:

  java -jar azureeventgridsendevent.jar

  You should see the next message:

  Preparing batch of events ...
  Sending batch of events to Event Grid ...
  Sent

• Test the application.

  The events should be in the Event Grid.