samples/C4_Container Diagram Sample - bigbankplc.puml

1@startuml2!include https://raw.githubusercontent.com/plantuml-stdlib/C4-PlantUML/master/C4_Container.puml3' uncomment the following line and comment the first to use locally4' !include C4_Container.puml5​6' LAYOUT_TOP_DOWN()7' LAYOUT_AS_SKETCH()8LAYOUT_WITH_LEGEND()9​10title Container diagram for Internet Banking System11​12Person(customer, Customer, "A customer of the bank, with personal bank accounts")13​14System_Boundary(c1, "Internet Banking") {15    Container(web_app, "Web Application", "Java, Spring MVC", "Delivers the static content and the Internet banking SPA")16    Container(spa, "Single-Page App", "JavaScript, Angular", "Provides all the Internet banking functionality to cutomers via their web browser")17    Container(mobile_app, "Mobile App", "C#, Xamarin", "Provides a limited subset of the Internet banking functionality to customers via their mobile device")18    ContainerDb(database, "Database", "SQL Database", "Stores user registration information, hashed auth credentials, access logs, etc.")19    Container(backend_api, "API Application", "Java, Docker Container", "Provides Internet banking functionality via API")20}21​22System_Ext(email_system, "E-Mail System", "The internal Microsoft Exchange system")23System_Ext(banking_system, "Mainframe Banking System", "Stores all of the core banking information about customers, accounts, transactions, etc.")24​25Rel(customer, web_app, "Uses", "HTTPS")26Rel(customer, spa, "Uses", "HTTPS")27Rel(customer, mobile_app, "Uses")28​29Rel_Neighbor(web_app, spa, "Delivers")30Rel(spa, backend_api, "Uses", "async, JSON/HTTPS")31Rel(mobile_app, backend_api, "Uses", "async, JSON/HTTPS")32Rel_Back_Neighbor(database, backend_api, "Reads from and writes to", "sync, JDBC")33​34Rel_Back(customer, email_system, "Sends e-mails to")35Rel_Back(email_system, backend_api, "Sends e-mails using", "sync, SMTP")36Rel_Neighbor(backend_api, banking_system, "Uses", "sync/async, XML/HTTPS")37@enduml38​