feat: define an unauthorized error in VRCKitError, apply to error handler

Author: makinosp

Sources/VRCKit/Errors.swift

@@ -24,6 +24,9 @@ public enum VRCKitError: Error, LocalizedError {
     /// Represents an error indicating an invalid request with additional details.
     case invalidRequest(_ details: String)
 
+    /// Represents an error indicating an authentication failure.
+    case unauthorized
+
     /// Represents an unexpected error.
     case unexpectedError
 
@@ -41,6 +44,8 @@ public enum VRCKitError: Error, LocalizedError {
             "Invalid Response Error"
         case .invalidRequest:
             "Invalid Request"
+        case .unauthorized:
+            "Unauthorized"
         case .unexpectedError:
             "Unexpected Error"
         case .urlError:

Sources/VRCKit/Utils/Serializer.swift

@@ -30,7 +30,11 @@ final class Serializer {
         } catch let error as DecodingError {
             do {
                 let errorResponse = try decoder.decode(ErrorResponse.self, from: data)
-                throw VRCKitError.apiError(errorResponse.error.message)
+                if errorResponse.error.statusCode == 401 {
+                    throw VRCKitError.unauthorized
+                } else {
+                    throw VRCKitError.apiError(errorResponse.error.message)
+                }
             } catch _ as DecodingError {
                 // for debug
                 print(type(of: T.self))