aWN Tool - Amtliche Wohnungsnummer

Shiny app for querying official apartment numbers (aWN - amtliche WohnungsNummern) and additional information such as primary and secondary energy sources, building details, and apartment sizes from the City of Zurich's Building and Apartment Registry. The data is sourced from the Open Data Catalogue of the City of Zurich and is updated daily. The specific datasets are as follows:

• building data
• entrance data
• apartement data

App's Architecture

The aWN Tool is built using several modular components and helper functions. The main modules are as follows:

• app_ui sets up the UI layout, including the mod_input_ui, results (mod_results_ui), and download buttons (mod_download_ui).

• mod_input_ui handles address input. Its server function, mod_input_server, return filtered data based on the selected address.

• app_server reacts to the action button click:

  • Filtered input: The mod_input_server module filters building and apartment data.

  • Result display: Depending on valid input, it shows the mod_result_ui and mod_download_ui.

  • Warning: If the address is not found, a warning UI is rendered.

• mod_result_server renders the building and apartment based on filtered input.

• mod_download_server enables downloading filtered data (building and apartment).

Below is a visual representation of the application's architecture:

flowchart LR
  mod_input -->|address| app_server
  app_server -->|filtered_building, filtered_apartment| mod_results
  mod_results -->|Result| App
  app_server -->|filtered_building, filtered_apartment| mod_download
  mod_download -->|Result| Download

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