Developed a prototype of yelp website as a Lab 2 using MERN stack and Kafka Messaging Queue.

Following steps can be used to start the project

Clone the repository.

Run npm install after entering inside each of the following directories
Back-end
front-end
kafka-backend

Create a cluster on MongoDB and provides it details in the config file in the kakfa-backend folder.

Create config and .env files as described below with appropriate values and place at specified files for each service.

For front-end:
config.js file place inside directory front-end/src:- 
  const serverUrl = '<Backend url with port>';

  export default serverUrl;

For Back-end:
config.js file place inside directory Back-end:- 
  const config = {};

  config.frontEndUrl = '<Frontend url with port>';
  config.kafkaZookeeper = '<kafka url with port>';
  config.kafkacommontopic = '<request1>';
  config.kafkastatictopic = '<request1>';
  config.kafkacustomertopic = '<request1>';
  config.kafkaresturanttopic = '<request1>';
  config.SESSION_SECRET = '<your secret>';
  module.exports = config;
  
 For kafka-backend:
config.js file place inside directory kafka-backend:- 
  const config = {};

  config.frontEndUrl = '<Frontend url with port>';
  config.kafkaZookeeper = '<kafka url with port>';
  config.kafkacommontopic = '<request1>';
  config.kafkastatictopic = '<request1>';
  config.kafkacustomertopic = '<request1>';
  config.kafkaresturanttopic = '<request1>';
  config.SESSION_SECRET = '<your secret>';
  module.exports = config;
  
 config.js file place inside directory kafka-backend/Models:- 
  const config = {
  mongoDB:
    '<Mongo db cluster connection url>',
};

module.exports = config;


Follow the below steps to run the project

Start Zookeeper and Kafka server.
Create the required topics same as specified in config file
Start kafka-backend using command node server.js
Start Back-end using command node index.js
Start front-end using command npm start.