Payments-demo

This project was developed to demonstrate a service that will provide REST endpoints to Fetch/Create/Update/Delete payment resources and persist their state. (e.g. to a database)

Getting started

These instructions will get you a copy of the project up and running on your local machine for development and testing purposes.

Prerequisites

Depending on how you want to build/run the application (methods below) you might need to have docker & docker-compose installed. The application itself is using Java 8, so you need to have a JDK installed of that version to build/run without Docker. If you have chosen the Docker/Docker Compose method, you will not need to install anything as it is handled by Docker.

Building and running

1. Clone or download the repository

2. Build & Run

   At the root of the project:

   • Without Docker/Docker Compose

     • Build

     mvn clean package 
     

     • Run

     java -jar target/demo.jar
     

     or

     mvn spring-boot:run
     

     This will only run the application itself, without any external service or middleware

   • With Docker/Docker Compose

     docker-compose up 
     

     or if you want to rebuild the docker image:

     docker-compose up --build
     

     This method is using Docker's MultiStage build which creates an intermediary container with the build dependencies to build the artifact which is than copied to the run-container and a Docker image is created out of it. This way you do not have to install anything besides Docker and Docker Compose does that for you inside containers.

Endpoints

• the application API: http://localhost:8080/api/payments
• the application metrics: http://localhost:8080/metrics
• Swagger* API documentation: http://localhost:8080/swagger-ui.html
• HAL browser*: http://localhost:8080/api
• Mongo Express* to manage MongoDB: http://localhost:8081/

(* For demonstration purposes. Can be disabled for production deployments!)

Tests

Automated integration tests are using an embedded MongoDB and sample data (payments.json). These should pass when building the artifact.

Built with

• Spring - The web framework
• Spring Data - Store-specific features and capabilities
• Spring Data MongoDB - store-specific features and capabilities for MongoDB
• Spring Data REST - REST web services on top of Spring Data repositories
• Maven - Dependency management
• Docker & Docker Compose - Containerization & orchestration
• MongoDB - Database
• Mongo Express - Web-based MongoDB admin interface
• HAL browser - An API browser for the hal+json media type

Author

Miklos Barabas - GitHub