The service architecture is as follows:

![alt text](./etc/ServiceDiagram.PNG"Service Diagram")

![alt text](./etc/ServiceDiagram.png"Service Diagram")

In terms of code, the end user application is:

How does the above pattern prevent failures? Let's understand via this finite state machine

implemented by it.

![alt text](./etc/StateDiagram.PNG"State Diagram")

![alt text](./etc/StateDiagram.png"State Diagram")

- We initialize the Circuit Breaker object with certain parameters:`timeout`,`failureThreshold` and`retryTimePeriod` which help determine how resilient the API is.

- Initially, we are in the`closed` state and nos remote calls to the API have occurred.