Instructions

This application would run a REST API server with in-memory storage. It's possible to create accounts and transfer funds between accounts. It's a reactive application which extensively uses Kotlin coroutines.

(All commands are executed from the root folder of the project, OpenJDK 13 is recommended)

Tests

$ ./gradlew test

Integration Tests

$ ./gradlew integTest

Build

$ ./gradlew build

Run

Simplest way:

$ ./gradlew run

It's possible to build a fat jar and run an standalone application:

$ ./gradlew shadowJar
$ java -jar ./build/libs/money-transfer-service-0.0.1-SNAPSHOT-all.jar

Request Examples (curl)

$ curl -X POST -H 'Content-Type: application/json' -d '{"name": "Test1"}' http://localhost:8080/accounts
$ curl -X POST -H 'Content-Type: application/json' -d '{"name": "Test2", "centAmount": 1000}' http://localhost:8080/accounts
$ curl -X POST -H 'Content-Type: application/json' -d '{"fromAccountId": 2,"toAccountId":1 ,"centAmount":100}' http://localhost:8080/transactions

Transaction create response should look like:

      {
        "id" : 1,
        "fromAccountId" : 2,
        "toAccountId" : 1,
        "centAmount" : 100,
        "status" : "SUCCESS",
        "createdAt" : 1582095641618
      }

Server

Application is running on default port 8080.

Server health:

$ curl http://localhost:8080/health

REST API Specification

See docs/swagger.yaml

TODO - Improvements

Real Database
Monitoring / metrics reporting (micrometer)
Logging
Container / Build in Container
Event Sourcing / CQRS

aloise/money-transfer-service