在终端上获取 URL 后如何将数据传递给 tableview？斯威夫特 5

Question

import UIKit
import Alamofire
typealias JSON = [String: Any]

class NetworkingService {
    static let shared = NetworkingService()
    private init() {}

    func getPeople(completion: () -> Void) {
        AF.request(API.SpaceX.upcomingLaunches.url()).responseJSON{ (response) in

            switch response.result {
            case let .success(value):
                print(value)
            case let .failure(error):
                print(error)
            }
        }
    }
}

我从终端中的 api https://api.spacexdata.com/v3/launches/upcoming 获得了 JSON 数据。现在我想使用 swiftyJSON 或 Alamofire 解码数据并将其显示在我的 tableview 单元格上，但我无法做到。我想使用可编码的 alamofire，并且我已经在下面给出的另一个文件中编写了这些代码

    import Foundation

struct Mission: Codable {

    let flight_number: Int
    let mission_name: String
    let launch_date_utc: String
    let launch_date_local: String

    struct Rocket: Codable {
        let rocket_id: String
        let rocket_name: String
        let rocket_type: String
        let first_stage: FirstStage
        let second_stage: SecondStage
    }

    struct FirstStage: Codable {
        let cores: [Core]
    }

    struct Core: Codable {
        let core_serial: String?
        let flight: Int?
        let reused: Bool?
    }

    struct SecondStage: Codable {
        let payloads: [Payload]
    }

    struct Payload: Codable {
        let payload_id: String
        let reused: Bool?
        let customers: [String]
        let payload_type: String?
    }

    struct LaunchSite: Codable {
        let site_id: String
        let site_name: String
        let site_name_long: String
    }

    struct Links: Codable {
        let mission_patch: String?
        let presskit: String?
        let article_link: String?
        let video_link: String?
        let reddit_campaign: String?
    }

    let rocket: Rocket
    let launch_site: LaunchSite
    let links: Links
}

以上是我的可编码数据。我想在我的Tableview cell 中提供所有这些细节。你能帮我用 swiftyJSON 或 alamofire 重写代码吗？ :)

import Foundation
struct API {
    enum SpaceX {
        case allLaunches
        case pastLaunches
        case upcomingLaunches
        case latestLaunch
        case nextLAunch

        func url() -> String {
            switch self {
            case .allLaunches:
                return "https://api.spacexdata.com/v3/launches"

            case .pastLaunches:
                return "https://api.spacexdata.com/v3/launches/past"

            case .upcomingLaunches:
                return "https://api.spacexdata.com/v3/launches/upcoming"


            case .latestLaunch:
                return "https://api.spacexdata.com/v3/launches/latest"

            case .nextLAunch:
                return "https://api.spacexdata.com/v3/launches/next"
            }
        }
    }
}

以上是我做的api func。

Answer 1

在这里，首先您需要使用 JSONDecoder 将数据转换为自定义对象。为此，您需要像您已经使用的那样使用 Codable。这里也可以使用responseData代替responseJSON，比成功案例直接获取数据。

func getPeople(completion: () -> Void) {
    AF.request(API.SpaceX.upcomingLaunches.url()).responseJSON{ (response) in
        switch response.result {
        case let .success(value):
            print(value)
            if let data = response.data {
                // Convert to Object
                do {
                    let responseDecoded = try JSONDecoder().decode([Mission].self, from: data)
                    print(responseDecoded.count)
                } catch let error {
                    // Parser error
                    print(error)
                }
            }
        case let .failure(error):
            print(error)
        }
    }
}

我希望这会有所帮助。