@startuml
!include <C4/C4_Dynamic>

Container(spa, "Single Page Application", "javascript and Angular", "Provides all the internet banking functionality to customers via thier web browser.")
ContainerDb(db, "Database", "Oracle Database Schema", "Stores user registration information hashed authentication credentials, access logs, etc.")
Container_Boundary(bc, "API Application"){
    Component(signin, "Sign In Controller", "Spring MVC Rest Controller", "Allows users to sign in to the internet Banking System")
    Component(security, "Security Component", "Spring Bean", "Provides functionality related to signing in, changing passwords, etc.")
}

Rel(spa, signin, "Submits credentials to", "JSON/HTTPS")
Rel(signin, security, "Calls isAuthenticated() on")
Rel(security, db, "select * from users where username = ?", "JDBC")

@enduml