92 lines
3.6 KiB
Swift
92 lines
3.6 KiB
Swift
//
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// Copyright (c) 2017 Touch Instinct
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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//
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import Alamofire
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import RxSwift
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import RxAlamofire
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typealias ServerResponse = (HTTPURLResponse, Data)
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public extension Reactive where Base: DataRequest {
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/// Method that serializes response into target object
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///
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/// - Parameter mappingQueue: The dispatch queue to use for mapping
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/// - Parameter decoder: JSONDecoder used to decode a decodable type
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/// - Returns: Observable with HTTP URL Response and target object
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func apiResponse<T: Decodable>(mappingQueue: DispatchQueue = .global(), decoder: JSONDecoder)
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-> Observable<(response: HTTPURLResponse, model: T)> {
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return response(onQueue: mappingQueue)
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.tryMapResult { response, data in
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(response, try decoder.decode(T.self, from: data))
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}
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}
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/// Method that serializes response into target object
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///
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/// - Parameter mappingQueue: The dispatch queue to use for mapping
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/// - Returns: Observable with HTTP URL Response and target object
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func observableApiResponse<T: ObservableMappable>(mappingQueue: DispatchQueue = .global(), decoder: JSONDecoder)
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-> Observable<(response: HTTPURLResponse, model: T)> {
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return response(onQueue: mappingQueue)
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.tryMapObservableResult { response, value in
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let json = try JSONSerialization.jsonObject(with: value, options: [])
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return T.create(from: json, with: decoder)
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.map { (response, $0) }
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}
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}
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private func response(onQueue queue: DispatchQueue) -> Observable<(HTTPURLResponse, Data)> {
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return responseResult(queue: queue, responseSerializer: DataRequest.dataResponseSerializer())
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}
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}
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private extension ObservableType where E == ServerResponse {
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func tryMapResult<R>(_ transform: @escaping (E) throws -> R) -> Observable<R> {
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return map {
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do {
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return try transform($0)
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} catch {
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throw RequestError.mapping(error: error, response: $0.1)
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}
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}
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}
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func tryMapObservableResult<R>(_ transform: @escaping (E) throws -> Observable<R>) -> Observable<R> {
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return flatMap { response, result -> Observable<R> in
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do {
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return try transform((response, result))
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.catchError {
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throw RequestError.mapping(error: $0, response: result)
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}
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} catch {
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throw RequestError.mapping(error: error, response: result)
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}
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}
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}
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}
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