This example demonstrates stateful resilience patterns in a REST environment. A payment (micro-)service retrieves payments if called via REST. It requires an upstream REST service to charge credit cards.

This simple call-chain is great to demonstrate resilience patterns.

• Java 8
• Spring Boot 1.5.x
• Hystrix
• Spring State Machine

First you have to checkout and run the stripe fake server, as this handles the credit card payments.

mvn -f ../stripe-fake/ exec:java

Now you can run the payment service itself

mvn exec:java

Now the different versions of the payment service are available:

• http://localhost:8100/api/payment/v1
• ...
• http://localhost:8100/api/payment/v3

You now can issue a PUT with an empty body:

curl \
-H "Content-Type: application/json" \
-X PUT \
-d '{}' \
http://localhost:8100/api/payment/v1