Created
February 12, 2020 19:02
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Alamofire custom serializer
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| // | |
| // TwoDecodableResponseSerializer.swift | |
| // | |
| // Created by Charles Muchene on 2/12/20. | |
| // Copyright © 2020 SenseiDevs. All rights reserved. | |
| // | |
| import Alamofire | |
| import Foundation | |
| final class TwoDecodableResponseSerializer<T: Decodable>: ResponseSerializer { | |
| lazy var decoder: JSONDecoder = { | |
| let decoder = JSONDecoder() | |
| decoder.keyDecodingStrategy = .convertFromSnakeCase | |
| return decoder | |
| }() | |
| private let errorCode: StatusCode | |
| init(errorCode: StatusCode) { | |
| self.errorCode = errorCode | |
| } | |
| private lazy var successSerializer = DecodableResponseSerializer<T>(decoder: decoder) | |
| private lazy var errorSerializer = DecodableResponseSerializer<APIError>(decoder: decoder) | |
| public func serialize(request: URLRequest?, response: HTTPURLResponse?, data: Data?, error: Error?) throws -> Result<T, APIError> { | |
| guard error == nil else { return .failure(.init(error: error)) } | |
| guard let response = response else { return .failure(.noResponseError) } | |
| do { | |
| if response.statusCode == errorCode { | |
| let result = try errorSerializer.serialize(request: request, response: response, data: data, error: nil) | |
| return .failure(result) | |
| } else { | |
| let result = try successSerializer.serialize(request: request, response: response, data: data, error: nil) | |
| return .success(result) | |
| } | |
| } catch(let err) { | |
| return .failure(.init(error: err)) | |
| } | |
| } | |
| } |
Seems it should work. APIError should conform to protocol Error to be used in Swift's Result type. Could you provide a sample code showing the error you get?
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This class does not conform to DataResponseSerializerProtocol protocol anymore, I don't know if that is a problem with a new Alamofire 5.* but this is not working anymore.