README.md

Node.js Express version of flowing-retail/rest

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

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

See introduction for the storyline / patterns behind this demo.

Concrete technologies/frameworks in this folder:

• Node.js
• Express
• TypeScript
• Brakes
• Zeebe on Camunda Cloud

Install

pnpm i

Run

With Camunda Cloud:

• Copy the environment variables from the Camunda Cloud Console for your client connection.
• Set them in your environment.
• Follow the instructions in stripe-fake/README.md to start the upstream credit card charging service.
• Start this microservice:

npm run start

Now the different versions of the payment service are available:

• http://localhost:8100/api/payment/v1
• ...
• http://localhost:8100/api/payment/v6

You can now issue a PUT with an empty body:

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