どうやらそれは非常に簡単です。独自のプラグインを作成するだけです。それを Provider インスタンスに追加します (init 関数で追加できます)。
例えば:
struct NetworkErrorsPlugin: PluginType {
/// Called immediately before a request is sent over the network (or stubbed).
func willSendRequest(request: RequestType, target: TargetType) { }
/// Called after a response has been received, but before the MoyaProvider has invoked its completion handler.
func didReceiveResponse(result: Result<Moya.Response, Moya.Error>, target: TargetType) {
let responseJSON: AnyObject
if let response = result.value {
do {
responseJSON = try response.mapJSON()
if let response = Mapper<GeneralServerResponse>().map(responseJSON) {
switch response.status {
case .Failure(let cause):
if cause == "Not valid Version" {
print("Version Error")
}
default:
break
}
}
} catch {
print("Falure to prase json response")
}
} else {
print("Network Error = \(result.error)")
}
}
}