FuelingApp

Modular Swift package for browsing fueling locations — a searchable list and map of locations, and a location detail screen with current fuel prices.

Built on CoreModel for persistence and delivered as a Swift Playground app (no Xcode project).

Modules

Module	Description
CoreFueling	Domain entities (Location, FuelProduct, FuelOption) declared with the CoreModel @Entity macro, plus search queries and geo primitives.
FuelingAPI	REST API implemented as extensions of an HTTPClient protocol (swift-http-types) with an injectable base URL (ServerURL) — no hardcoded hostnames, URLSession is just one conformer.
FuelingModel	Store (persistence + network composition root) and @Observable view models for the location list and location detail.
FuelingUI	SwiftUI views: LocationsView (list/map toggle), LocationListView, LocationMapView, LocationDetailView.

Running the app

Open Fueling.swiftpm in Xcode or Swift Playgrounds and run. The demo uses bundled sample data (MockHTTPClient) with an in-memory store, so it works offline.

To run against a real server, inject the base URL:

let service = APILocationService(server: ServerURL(rawValue: "https://api.example.com")!)
let store = try Store(locationService: service)

Usage

import SwiftUI
import FuelingModel
import FuelingUI

// list / map of locations
LocationsView { locationID in
    // handle selection
}
.environment(store)

// location detail with fuel prices
LocationDetailView(location: locationID)
    .environment(store)

Tests

swift test