Order Management

This repository demonstrates Observability in springboot microservices using Azure Application Insights Java SDK.

Core Components

• Order Creation Microservice (Producer Service)- Springboot microservice responsible for creating new orders and pushing events to RabbitMQ.
• Postgres SQL for persistence.
• Rabbit MQ - Message Broker to enable asynchronous communication.
• Order Logging Service (consumer service) - Springboot microservice which reacts on the events published by Order creation service and logs the information to console.

Enable Azure Application Insights:

• Create an application insights resource and obtain the instrumentation key. You can follow this tutorial for details.
• modify the application.properties for OrderCreationService and OrderLoggingService and add update the property azure.application-insights.instrumentation-key=<your-ikey> with your instrumentation key.

Build the services

mvnw clean build

This command will build all the microservices.

Deploy on docker

Prerequisites:

• Make sure you have docker installed and running locally. You can install docker by following the steps on docker's official website.

run the command docker-compose up. This will deploy all the microservices including RabbitMQ message broker on a common docker network.

Post requests

curl -d '{"productId" : "car123", "productName" : "car"}' -H "Content-Type: application/json" -X POST http://localhost:18080/orders

This would create a new order message and publish it to RabbitMQ. The consumer service reacts on this message, and logs the information on console.

End To End Transaction on Azure Application Insights

Application Map View

Visualize RabbitMQ Metrics on Azure Metrics Explorer