https://medium.com/@pradeep_thomas/springboot-and-horizontally-scaling-microservices-61507ba0ae0c

Proxy requests to other REST APIs by passing the

X-DEST header

Example:

Assume that you have a REST API running on

http://localhost:8085/api/persist/find?id=1&type=Customer

that returns Json

{ "id": 1, "firstName": "Johnny", "lastName": "Doe", "address": null }

To proxy a Call to this REST API

1. Run this microservice

2. Pass the X-DEST HTTP header

   X-DEST = http://localhost:8085

3. Invoke the call on the proxy running on 9090

http://localhost:9090/api/persist/find?id=1&type=Customer

The call gets forwarded by the service running on port 9090 to http://localhost:8085

You'll be able to round robin or whatever by changing the

X-DEST header.

Clone the repo and build it using

persist$ mvn clean package

proxy$ java -jar target/proxy-0.0.1-SNAPSHOT.jar