vsalex/messages

This small app is written by me for practice and demonstration purposes. It can generate and read messages by different application instances. All communication is via backend. Now supported only redis.

Requirements

• Python >= 3.6
• Redis server is necessary for now. It can be local or remote.

Installation

1. Clone this repo;
2. pip install -r requirements.txt.

Specification

This app can generate and receive messages. All communication are only via configurable backend. All application copies but generator must be receivers. Receivers are ready at any moment to receive message from backend.

All messages must be received by single receiver. Generator must be single instance. If generator shut downs - any of receivers must should be a generator. All communication about who is generator only via backend. Do not use OS features.

Messages are generated every 500 ms. To generate message use any function with random text output.

Every received message has 5% to error. Error messages goes to backend. There is option to run app with getErrors key - errors will show and cleaned up.

Usage

First of all you need to look at settings.py file and configure your MESSAGE_BACKEND_HOST and MESSAGE_BACKEND_PORT. Don't forget to set appropriate LOG_LEVEL.

And run a few instances via python app.py.

Also you can run python app.py getErrors to get all errors and clean it.

Have fun!