fix: throw error if ThrowOnAnyError flag is true

src/RestSharp/Http.Sync.cs

@@ -118,6 +118,9 @@ HttpResponse ExecuteRequest(string httpMethod, Action<HttpWebRequest> prepareReq
             }
             catch (Exception ex)
             {
+                if (ThrowOnAnyError)
+                    throw;
+
                 return ExtractErrorResponse(ex);
             }
 

src/RestSharp/Http.cs

@@ -229,6 +229,8 @@ static void AddRange(HttpWebRequest r, string range)
         /// <inheritdoc />
         public Action<HttpWebRequest>? WebRequestConfigurator { get; set; }
 
+        public bool ThrowOnAnyError { get; set; }
+
         [Obsolete]
         public static IHttp Create() => new Http();
 

src/RestSharp/RestClient.cs

@@ -421,7 +421,8 @@ IHttp ConfigureHttp(IRestRequest request)
                 CookieContainer         = CookieContainer,
                 AutomaticDecompression  = AutomaticDecompression,
                 WebRequestConfigurator  = WebRequestConfigurator,
-                Encode                  = Encode
+                Encode                  = Encode,
+                ThrowOnAnyError         = ThrowOnAnyError,
             };
 
             var requestParameters = new List<Parameter>();

test/RestSharp.Tests/RestRequestTests.cs

@@ -1,4 +1,5 @@
-using NUnit.Framework;
+using System.Net;
+using NUnit.Framework;
 
 namespace RestSharp.Tests
 {
@@ -26,5 +27,13 @@ public void RestRequest_Test_Already_Encoded()
             Assert.AreEqual("notencoded", request.Parameters[1].Value);
             Assert.AreEqual(ParameterType.QueryStringWithoutEncode, request.Parameters[1].Type);
         }
+
+        [Test]
+        public void RestRequest_Fail_On_Exception()
+        {
+            var req = new RestRequest("nonexisting");
+            var client = new RestClient("http://localhost:12345") { ThrowOnAnyError = true };
+            Assert.Throws<WebException>(() => client.Execute(req));
+        }
     }
 }