sequenceDiagram
  participant api@{ "type": "entity"} as public transport API
  participant ah as api_handler
  participant ui as UI
  participant th as transport_helper
  participant db@{ "type":"database"} as database

ui-->>ah: find Station
ah-->>api: GET request w/ stationname
api-->>ah: return json
ah-->>th: provide json Map
th-->>db: store object
db-->>th: return id
th-->>ah: return object
ah-->>ui: display data