| extension URLSession: HTTPLoading { publicfunc load(request: HTTPRequest, completion: @escaping(HTTPResult) -> Void) guard let url = request.url else{ // we couldnt construct a proper URL out of the requests URLComponents completion(.failure(...)) return } // construct the URLRequest var urlRequest = URLRequest(url: url) urlRequest.httpMethod = request.method.rawValue // copy over any custom HTTP headers for(header, value) in request.headers { urlRequest.addValue(value, forHTTPHeaderField: header) } ifrequest.body.isEmpty == false{ // if our body defines additional headers, add them for(header, value) in request.body.additionalHeaders { urlRequest.addValue(value, forHTTPHeaderField: header) } // attempt to retrieve the body data do{ urlRequest.httpBody = tryrequest.body.encode() } catch{ // something went wrong creating the body; stop and report back completion(.failure(...)) return } } let dataTask = session.dataTask(with: urlRequest) { (data, response, error) in // construct a Result<HTTPResponse, HTTPError> out of the triplet of data, url response, and url error let result = HTTPResult(request: request, responseData: data, response: response, error: error) |
