Mini bank app

Example app using Akka and Cassandra from Rock the JVM

Architecture

Entry point is the HTTP server built with Akka HTTP

POST /bank
  Payload: bank account creation request
  Response:
    201 Created
      Location: /bank/:uuid
    400 Bad Request

GET /bank/:uuid
  Response:
   200 Ok
    Bank acc as JSON
   404 Not Found

PUT /bank/:uuid
  Payload: (currency, amount) as JSON
  Response:
    200 Ok
      Account updated as JSON
    400 Bad request
    404 Not Found

Persistent Akka actors are used to handle the logic, messages are persisted to Cassandra database.

There is a main Bank actor that spawns children actors for each bank account.

Payloads validation is performed using Cats.

Usage

• docker compose up to prepare Cassandra service
• Run the app
• Interact with the app via the HTTP API