wzf1943/RPN

Reverse Polish Notation Service

RPN

RPN is a web server that can parse reverse polish notation string and then write result as JSON format.

System Diagram

---

Getting Started

These instructions will get you a copy of the RPN up and running on your local machine.

Prerequisites

golang:1.10

Installing

go get github.com/gorilla/mux
go get github.com/golang-collections/collections/stack
go get github.com/jessevdk/go-flags

Running the tests

Unit test

Run the go unit test

make test

Build

Compile Binary

make build

Cross compile binary

make build-linux

Clean binaries

make clean

Docker build

make docker-build

Docker run

make docker-run

Test Endpoint

curl -H "Accept: application/json" -H "Content-type: application/json" -X POST -d '{"rpns":[{"input":"10 -1 +"},{"input":"10 -2 +"}]}' http://localhost:8080/parse

curl -H "Accept: application/json" -H "Content-type: application/json" -X GET http://localhost:8080/health

API

/parse

This api recieves single reverse polish notation string as input and return result as JSON format.

Input

{
	"rpns": [{
			"input": "10 -1 +"
		},
		{
			"input": "10 -2 +"
		}
	]
}

Output

{
    "rpn": [
        {
            "name": "10 -1 +",
            "result": 9
        },
        {
            "name": "10 -2 +",
            "result": 8
        }
    ]
}

/Health

This api helps load balancer check the server's healty situation

Input

N/A

Output

{
    "status": "OK",
    "code": 200
}