Money transfer Rest API

A Java RESTful API for money transfers between users accounts

Technologies

• Java 10.0.1
• JAX-RS API
• H2 in memory database
• Log4j
• Jetty Container (for Test and Demo app)
• Apache HTTP Client

How to run

mvn clean install
mvn exec:java

Application starts a jetty server on localhost port 8080 An H2 in memory database initialized with some sample user and account data To view

• http://localhost:8080/user/vikram
• http://localhost:8080/user/kiran
• http://localhost:8080/account/1
• http://localhost:8080/account/2

Available Services

HTTP METHOD	PATH	USAGE
GET	/user/{userName}	get user by user name
GET	/user/all	get all users
PUT	/user/create	create a new user
POST	/user/{userId}	update user
DELETE	/user/{userId}	remove user
GET	/account/{accountId}	get account by accountId
GET	/account/all	get all accounts
GET	/account/{accountId}/balance	get account balance by accountId
PUT	/account/create	create a new account
DELETE	/account/{accountId}	remove account by accountId
PUT	/account/{accountId}/withdraw/{amount}	withdraw money from account
PUT	/account/{accountId}/deposit/{amount}	deposit money to account
POST	/transaction	perform transaction between 2 user accounts

Http Status

• 200 OK: The request has succeeded
• 400 Bad Request: The request could not be understood by the server
• 404 Not Found: The requested resource cannot be found
• 500 Internal Server Error: The server encountered an unexpected condition

Sample JSON for User and Account

User :

{ "userName":"vikram",
"emailAddress":"vikram@gmail.com"
} 

User Account: :

{ "userName":"vikram",
"balance":10.0000,
"currencyCode":"GBP"
} 

User Transaction:

{ "currencyCode":"EUR",
"amount":100000.0000,
"fromAccountId":1,
"toAccountId":2
}