although it's unusual to see 200 without any response, it's still possible to see those kinds of result. this will prevent from crashing due to force unwrapping of the data!

Author: michaelhenry

Sources/RxRetroSwift/Services/RequestCaller.swift

@@ -38,11 +38,12 @@ public class RequestCaller{
               let statusCode = httpResponse.statusCode
 
               do {
+                let _data = data ?? Data()
                 if (200...399).contains(statusCode) {
-                  let objs = try _self.decoder.decode(ItemModel.self, from: data!)
+                  let objs = try _self.decoder.decode(ItemModel.self, from: _data)
                   observer.onNext(Result.successful(objs))
                 } else {
-                  var error = try _self.decoder.decode(DecodableErrorModel.self, from: data!)
+                  var error = try _self.decoder.decode(DecodableErrorModel.self, from: _data)
                   error.errorCode = statusCode
                   observer.onNext(Result.failure(error))
                 }
@@ -71,16 +72,16 @@ public class RequestCaller{
 
         let task = _self.urlSession
           .dataTask(with: request) { (data, response, error) in
-            
+            let _data = data ?? Data()
             if let httpResponse = response as? HTTPURLResponse{
               let statusCode = httpResponse.statusCode
 
               do {
                 if (200...399).contains(statusCode) {
-                  let plainResponse = RawResponse(statusCode: statusCode, data: data)
+                  let plainResponse = RawResponse(statusCode: statusCode, data: _data)
                   observer.onNext(Result.successful(plainResponse))
                 } else {
-                  var error = try _self.decoder.decode(DecodableErrorModel.self, from: data!)
+                  var error = try _self.decoder.decode(DecodableErrorModel.self, from: _data)
                   error.errorCode = statusCode
                   observer.onNext(Result.failure(error))
                 }