reesretuta / invision-project

The assignment is to build a simple Producer/Consumer system. In this system the Generator will send a series of random arithmetic expressions, while the Evaluator will accept these expressions, compute the result and then report the solution to the Generator.

Requirements:

At a minimum, we would like to see the following implemented:

*The Producer and Consumer as separate NodeJS services. *The Producer generating random addition expressions of two positive integers, e.g. "2+3=" *The Consumer computing and returning the correct mathematical result for the each expression it receives *The Consumer successfully processing requests from two Producers concurrently at a rate of at least 1 req/sec from each Producer (2 req/sec in aggregate) *The Consumer and Producer should log all messages they generate and receive.

You are free to support more than simple addition, but it is not required.

The end product should:

*Be built in strict JavaScript and run with NodeJS *NOT rely on any external services like Redis, ZeroMQ or similar technologies *NOT use Express (Connect is Ok) *Include UML Activity Diagram and UML Sequence Diagram documenting the business logic *Include Unit tests

To Run:

1. Run npm install
2. Run node start.js. By the default config, this will initiate the consumer and 2 producers as well as start triggering looping requests to demonstrate producer/consumer interactions (sending and receiving data)
3. optionally: may also manually GET http://localhost:8080/produce and http://localhost:8081/produce

To Test:

1. Run mocha This creates 2 producers and by default runs through 10 requests each, testing for a request processing time average of at minimum 1 sec per producer

UML Diagrams: