Dactyloidae iOS initial commit

mobile/ios/Sync/RequestExtensions.swift

@@ -0,0 +1,72 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+import Foundation
+import Alamofire
+import Shared
+import SwiftyJSON
+
+extension DataRequest {
+    public func responsePartialParsedJSON(_ completionHandler: @escaping (DataResponse<JSON>) -> Void) -> Self {
+        return response(responseSerializer: parsedJSONResponseSerializer(), completionHandler: completionHandler)
+    }
+
+    public func responsePartialParsedJSON(queue: DispatchQueue, completionHandler: @escaping (DataResponse<JSON>) -> Void) -> Self {
+        return response(queue: queue, responseSerializer: partialParsedJSONResponseSerializer(), completionHandler: completionHandler)
+    }
+
+    public func responseParsedJSON(_ partial: Bool, completionHandler: @escaping (DataResponse<JSON>) -> Void) -> Self {
+        return response(responseSerializer: parsedJSONResponseSerializer(), completionHandler: completionHandler)
+    }
+
+    public func responseParsedJSON(queue: DispatchQueue, completionHandler: @escaping (DataResponse<JSON>) -> Void) -> Self {
+        return response(queue: queue, responseSerializer: parsedJSONResponseSerializer(), completionHandler: completionHandler)
+    }
+}
+
+public enum JSONSerializeError: Error {
+    case noData
+    case parseError
+}
+
+private func parsedJSONResponseSerializer() -> DataResponseSerializer<JSON> {
+    return DataResponseSerializer() { (request, response, data, error) -> Alamofire.Result<JSON> in
+        guard let data = data, !data.isEmpty else {
+            return .failure(JSONSerializeError.noData)
+        }
+
+        let json = JSON(data: data)
+        if json.isError() {
+            return .failure(JSONSerializeError.parseError)
+        }
+
+        return .success(json)
+    }
+}
+
+private func partialParsedJSONResponseSerializer() -> DataResponseSerializer<JSON> {
+    return DataResponseSerializer() { (request, response, data, error) -> Alamofire.Result<JSON> in
+        guard let data = data, !data.isEmpty else {
+            return .failure(JSONSerializeError.noData)
+        }
+
+        let o: Any?
+        do {
+            try o = JSONSerialization.jsonObject(with: data, options: .allowFragments)
+        } catch {
+            return .failure(JSONSerializeError.parseError)
+        }
+
+        guard let object = o else {
+            return .failure(JSONSerializeError.noData)
+        }
+
+        let json = JSON(object)
+        if json.isError() {
+            return .failure(JSONSerializeError.parseError)
+        }
+
+        return .success(json)
+    }
+}