uyjco0 / akira Goto Github PK

Sample application to learn the following technologies:

• Play:
  • SBT configuration and plugins
  • Dependency Injection
  • Actions, Controllers, and Results
  • Assets management
  • Templates, Forms and Bootstrap
  • Session management, authentication and Silhouette
  • Concurrency:
    • Asynchronous vs. synchronous:
      • Blocking vs non-blocking
    • Execution contexts and Thread pools:
      • Work stealing (ForkJoin)
      • Asynchronous Actions and thread pools
  • Database access, Slick and PostgreSQL
  • Akka streams and WebSockets
• Akka:
  • Isolated mutability, Messages and Actors
  • Actor System
  • Dispatcher

Scala basic knowledge:

• Classes:
  • Standard, abstract, case, trait
  • Companion object
  • Parameters, main and auxiliary constructor
  • Visibility
  • Type parametrization
• Function and methods:
  • Function object (functor), Apply and FunctionN trait
  • Function literals
  • Methods and difference with Function Objects
  • Partial function, Partial application, Currying and Closures
  • Syntactic sugar for function/methods with one parameter:
    • Curly braces, white space
  • Repeated parameters, default values and implicits
• Basic types
• String interpolation
• Pattern matching and case classes
• For comprehension:
  • Map, filter, foreach, flatMap, foldLeft, foldRight
• Options
• Lazy instantiation
• Concurrency with Futures and Promises

To start the application:

• SBT:
  • Install SBT:
    • See here
• Github:
  • Clone the repo:
    • Run 'git clone https://github.com/uyjco0/akira.git'
• PostgreSQL database:
  • Create database and needed tables:
    • Run 'conf/db/postgresql/create.sql'
      • Explained at: conf/db/postgresql/README.md
• Aplication configuration:
  • In 'conf/application.conf' change the string 'XXX' by your server domain/IP
  • In 'conf/application.conf' change the string '*** CHANGE IT ***' by your key
  • In 'conf/silhouette.conf' change the strings '*** CHANGE IT ***' by your keys
• Client Javascript:
  • The application is using IpInfo service to get your client current location:
    • In 'app/assets/javascripts/client.js' change the string 'XXX' by your token
• Run the application:
  • Run 'sbt', and once in the sbt console, run 'runProd'