Blog: ObservableObjects and Protocols - Example ObservableObject

blog--observableobject+protocols--typical-usage.swift

// Copyright 2021 Expedia, Inc.
// SPDX-License-Identifier: Apache-2.0

import Combine

struct Price {
    let amount: String // "$42"
    let description: String // "avg/night"
}

class PricingProvider: ObservableObject {
    
    @Published private(set) var price: Price?
    
    init(price initialValue: Price? = nil) {
        self.price = initialValue
    }
    
    func fetch() {
        //.. fetch pricing from a service
    }
}