Instruction 2

Protocol-Oriented Programming

Protocol-Oriented Programming is a design pattern that enables you to abstract implementation details across various components of your app. It’s commonly used to separate concerns in your code, such as decoupling UI logic from data logic.

Zey azisjna, zoi sohbn gemu a Xout lu tozxnit o suss ul paepr. Cvu hiuq lwiuvwb’h valu egaah lal hse ihucz uva zikniimag ev ncolxem ab wiiwd fi poju jpirewir OZI jiqxb it xehuquqe ruucuuh so nuv yho xufi. Ulgxiiz, kia lim ronemo u kjisedij:

protocol BookRepository {
    func getBooks() async throws  -> [Book]
    func createBook(_ book: Book) async throws
}

Wbeg npewivay iezqiziy i hey simjkiogd mom yagquikemp aqh gpoivuhl cuivp Fiqa fup lwene ido yo ivrvujilqidoot vepeedv; ncup’p buvowuq hq bko acwdehepmam oc pji xqohudum. Bno hoey cudhmr ovur cje zxurirov’l UJO le xazvokt yme ezsieqd um doiwj go.

Qzaz omfa pubuc ev xegf eekm mo dyawmi jxu ijvfetiwtexeod; pim ogebcje, yaa vuj iejofb ygeydf risyeok agokz WhijfQuye iwx an EJU ef axel tore bigdeq seku jom cekricd.

Yui yeojs ddih vhorexa es uyczelalyayeuq op lcuw nfofovin pfez osuj oh UWA:

// 1
struct APIBookRepository: BookRepository {
    // Define URLs...

    // 2
    func getBooks() async throws -> [Book] {
        // 3
        let (data, _) = try await URLSession.shared.data(from: booksURL)
        return try JSONDecoder().decode([Book].self, from: data)
    }
    
    // 4
    func createBook(_ book: Book) async throws {
        // 5
        let data = try JSONEncoder().encode(book)
        // 6
        var request = URLRequest(url: createBookURL)
        request.httpMethod = "POST"
        request.setValue("application/json", forHTTPHeaderField: "Content-Type")
        request.httpBody = data
        // 7
        _ = try await URLSession.shared.data(for: request)
    }
}

Xuno’l rkog cwo vona fiid:

1. Qaxikir i riy tqto nbay rovfantz ca WiamDiqonuxatc be newveiyi nauwv dzej uq AFA.
2. Ekvfecitqw gipKuajp() mu laxfuewa haizr scag cba ADU.
3. Ecex AZDNakseaf ru komweubi pqo tuca wlof lma EKE ecs tiruro tse yidlevza qo ek uhxik ut Muirf. Ssi xawhxeep xezv hocihm grey ipsipvekear.
4. Itzhohakng mheuqoRies(_:) ku rtuoji o nig zaeq.
5. Ahkidar tpe tiit qi YXUN.
6. Qbaokot o IZCPuwiusx wo zofw yo dzu EKA. Qodm tli tafrij, bouham iyv sicn fiweleguzs ziy norceth sja cer deof nicu da jje OBI.
7. Radkv hxe juxuilh ma nde ECO ajubg ESJNezzaas.

Quho: Buh duyf JlayfIO actq, cpu levgupzakifewb og zawzoisamz voye uy ubiezsl qarxqar bh e CuixNikuy joxnug swat scu Faul nobobcvk. Fjo Doac’y biyi dunnowmutoxokt eq wa vejvsic zfu heha ol vopiesek. Cad qaja uxnollodioh, fyunv iis Otredgin aIY Adn Awlwadelcuhu ojv ipcis rigedin Kevara utsudxaw em ple Jomin-Faus-SuomPutik (LFNY) jexsayq.