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enum APIManager{

    case GetHomeList // 获取首页列表

    case GetHomeDetail(Int)  // 获取详情页

}

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extension APIManager: TargetType {

    /// The target's base `URL`.

    var baseURL: URL {

        return URL.init(string: "http://news-at.zhihu.com/api/")!

    }

    /// The path to be appended to `baseURL` to form the full `URL`.

    var path: String {

        switch self {            

        case .GetHomeList: // 不带参数的请求

            return "4/news/latest"

        case .GetHomeDetail(let id):  // 带参数的请求

            return "4/theme/(id)"

        }

    }

// 区分get 和 post     

    var method: Moya.Method {        

        return .get

    }

    /// The parameters to be incoded in the request.

    var parameters: [String: Any]? {

        return nil

    }

    /// The method used for parameter encoding.

    var parameterEncoding: ParameterEncoding {

        return URLEncoding.default

    }

    /// Provides stub data for use in testing.

    var sampleData: Data {

        return "".data(using: String.Encoding.utf8)!

    }

    /// The type of HTTP task to be performed.

    var task: Task {

        return .request

    }

    /// Whether or not to perform Alamofire validation. Defaults to `false`.

    var validate: Bool {

        return false

    }

}

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private let provider = RxMoyaProvider()

  // 请求数据

        provider

            .request(.GetHomeList)

            .filterSuccessfulStatusCodes()

            .mapJSON().subscribe(onNext: { (json) in                

                print(json)                

            }).addDisposableTo(bag)

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{

    date = 20170908;

    stories =     (

                {

            "ga_prefix" = 090817;

            id = 9602715;

            images =             (

                "https://pic2.zhimg.com/v2-3b39b83f560e089a7f6ddb00f6948b81.jpg"

            );

            title = "U4e24U5343U591aU5e74U524dUff0cU79e6U56fdU4e3aU4ec0U4e48U8981U7edfU4e00U4e2dU56fdUff1f";

            type = 0;

        },

                {

            "ga_prefix" = 090816;

            id = 9601590;

            images =             (

                "https://pic4.zhimg.com/v2-700a8c29d04a885354d78d5a91a9fa5b.jpg"

            );

            title = "U8fdcU5904U6765U4e86U8f66Uff0cU5148U89c1U5230U8f66U9876U5c31U8bf4U660eU5730U7403U662fU5706U7684Uff1fU4e0dU53efU80fdU7684";

            type = 0;

        },

       );

    "top_stories" =     (

                {

            "ga_prefix" = 090815;

            id = 9607829;

            image = "https://pic3.zhimg.com/v2-14c13f9f87b1b3082929b444072eebb6.jpg";

            title = "U770bU7167U7247Uff0cU6211U5c31U77e5U9053U4f60U662fU540cU6027U604bUff0cU65afU5766U798fU5927U5b66U7684U4ebaU5de5U667aU80fdU8bf4";

            type = 0;

        },

                {

            "ga_prefix" = 090807;

            id = 9606837;

            image = "https://pic1.zhimg.com/v2-cceffc2e17185ae51b7b2d14b4414e84.jpg";

            title = "U6211U8fd9U4e48U80d6Uff0cU5230U5e95U662fU56e0U4e3aU5403U5f97U592aU591aU8fd8U662fU52a8U5f97U592aU5c11Uff1f";

            type = 0;

        },

    );

}

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class LLHomeModel: Mappable {

    var date: String?

    var stories: [StoryModel]?

    var top_stories: [StoryModel]?

    //  接下来的两个方法是必须要实现的 

    required init?(map: Map) {        

    }

    public func mapping(map: Map) {

        date <- map["date"]

        stories <- map["stories"]

        top_stories <- map["top_stories"]

    }

}

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let homeModel = LLHomeModel(JSONString: JSONString)

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let JSONString = homeModel.toJSONString(prettyPrint: true)

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    private let provider = RxMoyaProvider()

        // 请求数据

        provider

            .request(.GetHomeList)

            .filterSuccessfulStatusCodes()

            .mapJSON().mapObject(type: LLHomeModel.self).subscribe(onNext: { (model) in                

                self.modelObserable.value = model.stories!                

            }, onError: { (error) in                

            }).addDisposableTo(bag)