This example shows how to create a microservices architecture with Spring Boot and display its data with an Angular UI.

Please read Build a Microservices Architecture for Microbrews with Spring Boot for a tutorial that shows you how to build this application.

Prerequisites: Java 8 and Node.js.

Okta has Authentication and User Management APIs that reduce development time with instant-on, scalable user infrastructure. Okta's intuitive API and expert support make it easy for developers to authenticate, manage and secure users and roles in any application.

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To install this example application, run the following commands:

git clone [email protected]:oktadeveloper/spring-boot-microservices-example.git
cd spring-boot-microservices-example

This will get a copy of the project installed locally. To run the client and all the servers, execute ./run.sh, or execute the commands in this file manually.

r=`pwd`
echo $r

# Eureka
cd $r/eureka-service
echo "Starting Eureka Service..."
mvn -q clean spring-boot:run &

# Beer Service
echo "Starting Beer Catalog Service..."
cd $r/beer-catalog-service
mvn -q clean spring-boot:run &

# Edge Service
echo "Starting Edge Service..."
cd $r/edge-service
mvn -q clean spring-boot:run &

# Client
cd $r/client
npm install
echo "Starting Angular Client..."
npm start

The primary example (without authentication) is in the master branch, while the Okta integration is in the okta branch. To check out the Okta branch on your local machine, run the following command.

git checkout okta

The code in the okta branch is described in Secure a Spring Microservices Architecture with Spring Security, JWTs, Juiser, and Okta.

You will need to create an Okta developer account to configure the Spring Boot side of things. After creating an app and an access token, you should be able to set the following environment variables:

export STORMPATH_CLIENT_BASEURL={baseUrl}
export OKTA_APPLICATION_ID={applicationId}
export OKTA_API_TOKEN={apiToken}

After you set these environment variables, make sure to restart your Spring Boot applications.

For Angular, you'll need to create an OIDC app on Okta. Change {clientId} and {yourOktaDomain} in client/src/app/shared/okta/okta.service.ts to match your app's values.

signIn = new OktaSignIn({
  baseUrl: 'https://{yourOktaDomain}.com',
  clientId: '{clientId}',
  authParams: {
    issuer: 'default',
    responseType: ['id_token', 'token'],
    scopes: ['openid', 'email', 'profile']
  }
});

NOTE: The value of {yourOktaDomain} should be something like dev-123456.oktapreview.com. Make sure you don't include -admin in the value!

After making these changes, you should be able to log in with your credentials at http://localhost:4200.

This example uses the following libraries provided by Okta:

• Stormpath Java SDK
• Okta Sign-In Widget

Please post any questions as comments on the blog post, or visit our Okta Developer Forums. You can also email [email protected] if would like to create a support ticket.

Apache 2.0, see LICENSE.