ani94 / Splitter-app

A SOA based web service that splits expenses in a group.

Splitter-app

A SOA based web application that splits expenses in a group. Consists of 3 microservices

1. Splitter - This service contains Users, Groups of users, Transactions.
2. Email - This service is responsible for sending emails using 3rd part API's.
3. SMS - This service is responsible for sending SMS using 3rd part API's.

Steps to get the microservices up and running

1. Start RabbitMQ using this command /usr/local/opt/rabbitmq/sbin/rabbitmq-server. This starts on port 15672.
2. Start Splitter app service on local host port 3000. rails s -p 3000 is the command
3. Start the SMS service on local host port 4000 if required. rails s -p 4000 is the command.
4. Start the Email service on local host port 5000 if required . rails s -p 5000 is the command.
5. WORKERS=MailWorker rake sneakers:run to start the email service workers.
6. WORKERS=SmsWorker rake sneakers:run to start the email service workers.

Architecture Diagram

RabbitMQ as a message broker. P - Producers C- Consumers.

DataBase Schema for Splitter

Salient Features of Splitter Service

1. Reduces group based expenses to a graph that allowed the application of Tarjans’s strongly connected components algorithm that finds cycles in O(n) time complexity to quickly settle up expenses in a group.
2. Users can add transactions/bill expenses with friends in groups and normally.
3. Create your own groups.

Salient Features of Email Service

1. Uses MailGun's 3rd party API for Sending emails of transactions.
2. Consumes message sent on the email queue of RabbitMQ from splitter app.

Salient Features of SMS Service

1. Uses Gupshups's 3rd party API for Sending sms of transactions.
2. 2. Consumes message sent on the sms queue of RabbitMQ from splitter app.