An example of modern web application by implementing remote banking system

designed with REST, microservices and OAuth authorization

This app is developing with two git services:

• GitHub
• Bitbucket

The high-level architecture design:

Source of scheme is here

The first version of a database (with MySQL RDBMS):

NOTE!

Before deployment write credentials to a database at db_connections.properties:

• datasource.username
• datasource.password

Deployment to a google cloud:

• With no billing
• With enabled billing
• External link

Build and run

Important!

This project has Liquibase plugin in order to manage RDMBS development flow. The main purpose to use that is to have knowledge about changes in a database. If you did the first creation of a database manually via init.sql file - do not run update command with gradle until you make other changes in a database. In that case put path to your file with liquibase.changelogfile field at db_connections.properties (path has to be relative to folder $projectDir/rdbms_flow) If you want to do the first creation of a database via Liquibase plugin - first you have to create a schema (database) as named in connection URL (remote_banking). Just because Liquibase has no ability to create schema.

So to run application:

• In case updating RDBMS via Liquibase plugin. Gradle will also run tests:

  ./gradlew update bootRun

  (Liquibase update task creates a schema and populates it by demo data.)

• In case start application without updating RDBMS. Gradle will also run tests:

  ./gradlew bootRun

ENDPOINTS for HTTP-methods:

(to tune API root see also api.root property)

GET

• http://localhost:8080/rest/v1/hello/world
• http://localhost:8080/rest/v1/users
• http://localhost:8080/rest/v1/users/1
• http://localhost:8080/rest/v1/users/1/emails
• http://localhost:8080/rest/v1/send-to-jms-queue/fake-user

POST

• http://localhost:8080/rest/v1/users

  accept: application/json
  content-type: application/json

  {

   "firstName": "John",
   "lastName": "Doe",
   "dateOfBirth": {
       "year": 2000,
       "month": 1,
       "day": 1
   },
   "gender": "man"
  

  }

  RESPONSE: HTTP 201 (Created)

  Location header: http://localhost:8080/rest/v1/users/1

License

Copyright (C) 2018 - 2018 Evgenii Lartcev and contributors

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.