Banking application using nodejs microservice

This is a microservice and event driven based banking application.

Technology Stack & Tools

• NodeJs (Javascript runtime engine for backend)
• Vue (Javascript library for frontend)
• MongoDB (A NoSQL database that is highly scalable, highly consistent(strong & eventual) and partition tolerant)
• Nginx (Web server that can be use as a reverse proxy, load balancer, HTTP cache, mail proxy, API gateway)
• Kafka (An open-source distributed event streaming platform)
• Docker (Software platform for building, testing & deploying applications quickly in form of containers)
• Docker Compose (Multi container orchestration tool in a single machine or computer)
• Kubernetes (Production grade container orchestration tool)
• Minikube (Local cluster for testing kubernetes deployment)
• AWS (Cloud provider)

ARCHITECTURE

This application makes use of the microservice architecture where each part of the application is broken into a separate service. Each service is tested and deployed using a container software which is Docker.

ADVANTAGES OF MICROSERVICE ARCHITECTURE

• Each service can be scaled differently thus reducing down time & cost
• Each service is isolated from each other thus services can be built using different programming languages.
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DISADVANTAGES OF MICROSERVICE ARCHITECTURE

• It's a complex architecture to work with thus suitable for medium to large scale projects
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ALTERNATIVE ARCHITECTURE

An alternative architecture is the monolithic architecture which involves everything (services) been build and deploy as a single(mono) unit.

ADVANTAGES OF MONOLITHIC ARCHITECTURE

• It's easy to work with and deploy
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DISADVANTAGES OF MONOLITHIC ARCHITECTURE

• Suitable for small projects
• Each part of the project cannot be scaled separately
• Usually tied to a particular language
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Requirements For Initial Setup

This project can be setup using a couple of ways viz:

• Using docker compose: docker compose is use to build,run & manage multiple containers in a single machine or in ones computer.
• Using docker swamp: docker swamp is a container orchestration tool to run & manage containers in multiple machines.
• Using Kubernetes: Kubernetes is a production grade tool for orchestrating multiple containers in cloud environment like AWS, GCP, Azure etc.
• Using Minikube: Minikube enables the use of kubernetes in ones computer, making ones computer a node in a cluster.

NB: Using docker swamp will not be documented in this project

USING DOCKER COMPOSE

• Docker Destop (For building, runing multiple containers in a single machine)

USING KUBERNETES & MINIKUBE

• Kubectl (A command line tool for managing kubernetes clusters)
• Minikube (Local cluster for testing kubernetes deployment)

SETTING UP & RUNNING PROJECT

USING DOCKER COMPOSE

• Fork/clone/download this repo

• Open folder in a terminal

• Enter and run the following command

docker-compose up

• Access the project in your browser through http://localhost:4000

USING KUBERNETES & MINIKUBE