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https://github.com/chesleybrown/full-stack-challenge
Producer/Consumer system where producer generates a random equation for consumer to solve.
https://github.com/chesleybrown/full-stack-challenge
Last synced: 15 days ago
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Producer/Consumer system where producer generates a random equation for consumer to solve.
- Host: GitHub
- URL: https://github.com/chesleybrown/full-stack-challenge
- Owner: chesleybrown
- Created: 2015-07-03T09:45:10.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2015-07-05T18:49:11.000Z (over 9 years ago)
- Last Synced: 2023-03-11T18:47:52.617Z (over 1 year ago)
- Language: JavaScript
- Size: 508 KB
- Stars: 1
- Watchers: 0
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
 Full-Stack Challenge
=========================
[](https://travis-ci.org/chesleybrown/full-stack-challenge)
[](https://coveralls.io/r/chesleybrown/full-stack-challenge?branch=master)
[](https://david-dm.org/chesleybrown/full-stack-challenge)
[](https://david-dm.org/chesleybrown/full-stack-challenge#info=devDependencies)
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.
## Requires
- NodeJS
- npm
## Setup
1. Run `npm install`
## Running the Consumer
The Consumer service listens for expressions from any Producers. Upon receiving
an expression, it will attempt to evaluate it. If it's successful, it will emit
an event back to the Producer with the answer. It will also emit the answer to
the public event feed. If it can't evaluate the expression, it will broadcast
an error instead.
1. Run `npm run consumer`
1. Visit [http://localhost:3000/](http://localhost:3000/) in a modern browser
Once the Consumer is running you can visit
[http://localhost:3000/](http://localhost:3000/) in a modern
browser and get the expression interface. This page will be automatically
updated as expressions from any Producers are evaluated as well as when
expressions fail to be evaluated. The interface provides an input so you can
manually enter your own expressions to have them evaluated live.
The Consumer will log all of it's output to stdout.
## Running a Producer
The Producer service will generate a random arithmetic expression consiting of
two integers and an operator, e.g. "2+3=". It will do this every second until
the end of time (or until you stop the process, whichever comes first). You can
run as many Producer processes as your computer will support.
1. Run `npm run producer`
The Producer will log all of it's output to stdout.
## Running on Heroku
You can freely deploy an instance of this application on Heroku to see it in
action. Simply click the Heroku deploy button below and follow the instructions.
[](https://heroku.com/deploy)
Once you have the app deployed on Heroku, you can increase the `producer` dyno
to `1` to start a Producer service that will automatically start generating
random expressions and sending them to the Consumer based on the interval you
set for `PRODUCER_INTERVAL`.
## Demo
You can view a live demo at http://full-stack-challenge-example.herokuapp.com
which has a Producer running on a 5 minute interval.
## Running Tests
Use the `npm test` command. This will validate the codestyle of the project
using [tabs4life](https://github.com/chesleybrown/grunt-tabs4life) as well as
run all tests in the `test` directory.
Use the `npm run coverage` command to get the current code coverage report. It
will also attempt to upload it to Coveralls.io if you have permission.
## Diagrams
### Activity Diagram
### Sequence Diagram
