# Carrramba-encore-rate
# 🚧 Carrramba-encore-rate 🚧


[![Presentation](medias/presentation.png)](medias/presentation.mp4)
```plantuml
@startuml
!include <C4/C4_Container>

!define ICONURL https://raw.githubusercontent.com/tupadr3/plantuml-icon-font-sprites/v2.4.0
!includeurl ICONURL/common.puml

!includeurl ICONURL/font-awesome-5/users.puml
!includeurl ICONURL/devicons2/redis.puml
!includeurl ICONURL/devicons2/sqlalchemy.puml
!includeurl ICONURL/devicons2/postgresql.puml

title Carrramba-encore-rate - Back-end

LAYOUT_WITH_LEGEND()

Person(user, "User", "The service user", $sprite="users")

System_Boundary(cb1, "carrramba-encore-rate") {
  Container(app, "SPA", "SolidJS", "The graphical interface used by users to consume services provided")
  Container(api, "carrramba-encore-rate-api", "FastAPI / SQLAlchemy", "Provides the functionalities serving API endpoints", $sprite="sqlalchemy")
  ContainerDb(db, "Postgres", "PostgreSQL database", "Stores stops/stop areas/lines/shapes and associations information.", $sprite="postgresql")
  ContainerDb(cache, "In-Memory cache", "Redis", "Store previously computed results (stop, line, destination, next passages, shapes).", $sprite="redis")

  Container(db_updater, "db-updater", "Sync the service static data with the IDFM ones")
}

System_Boundary(idfm, "IDFM") {
  Container_Ext(static_, "Static data")
  Container_Ext(dynamic_, "Dynamic data")
}

Rel(user, app, "Uses")

Rel(app, api, "Uses", "JSON/HTTPS")

Rel_R(api, db, "Reads from", "sync, PSQL")
Rel_L(api, cache, "Reads from and writes to", "sync, REdis Serialization Protocol")
Rel(api, dynamic_, "Get next passages", "JSON/HTTPS")

Rel_L(db_updater, db, "Writes to", "sync, PSQL")
Rel(db_updater, static_, "Get stops, lines andshapes")
@enduml
```