Add new async request function, which encapsulate callback delegates and allow users to use third party json serializers.

Source/VaRest/Private/VaRestSimpleRequestAsync.cpp

@@ -0,0 +1,49 @@
+// Alan Verbilo 2021-2023 for VaRest plugin.
+
+#include "VaRestSimpleRequestAsync.h"
+
+UVaRestSimpleRequestAsync* UVaRestSimpleRequestAsync::VaRestSimpleRequestAsync(const FString URL, EVaRestRequestVerb Verb, EVaRestRequestContentType ContentType, const FString RequestMessage)
+{
+	UVaRestSimpleRequestAsync* object = NewObject<UVaRestSimpleRequestAsync>();
+
+	object->URL = URL;
+	object->Verb = Verb;
+	object->ContentType = ContentType;
+	object->RequestMessage = RequestMessage;
+
+	return object;
+}
+
+void UVaRestSimpleRequestAsync::Activate()
+{
+	// Create request
+	UVaRestSubsystem* VaRestSubsystem = GEngine->GetEngineSubsystem<UVaRestSubsystem>();
+	UVaRestRequestJSON* RequestJSON = VaRestSubsystem->ConstructVaRestRequestExt(Verb, ContentType);
+	UVaRestJsonObject* JsonObject = RequestJSON->GetRequestObject();
+	JsonObject->DecodeJson(RequestMessage);
+
+	// Bind to delegates
+	RequestJSON->OnRequestComplete.AddDynamic(this, &UVaRestSimpleRequestAsync::OnSuccessResend);
+	RequestJSON->OnRequestFail.AddDynamic(this, &UVaRestSimpleRequestAsync::OnFailureResend);
+
+	// Start request
+	RequestJSON->ProcessURL(URL);
+}
+
+void UVaRestSimpleRequestAsync::OnSuccessResend(class UVaRestRequestJSON* RequestJSON)
+{
+	// Unbind delegates
+	RequestJSON->OnRequestComplete.RemoveDynamic(this, &UVaRestSimpleRequestAsync::OnSuccessResend);
+	RequestJSON->OnRequestFail.RemoveDynamic(this, &UVaRestSimpleRequestAsync::OnFailureResend);
+
+	OnSuccess.Broadcast(RequestJSON->GetResponseCode(), RequestJSON->GetResponseContentAsString());
+}
+
+void UVaRestSimpleRequestAsync::OnFailureResend(class UVaRestRequestJSON* RequestJSON)
+{
+	// Unbind delegates
+	RequestJSON->OnRequestComplete.RemoveDynamic(this, &UVaRestSimpleRequestAsync::OnSuccessResend);
+	RequestJSON->OnRequestFail.RemoveDynamic(this, &UVaRestSimpleRequestAsync::OnFailureResend);
+
+	OnFail.Broadcast(RequestJSON->GetResponseCode(), RequestJSON->GetResponseContentAsString());
+}

Source/VaRest/Public/VaRestSimpleRequestAsync.h

@@ -0,0 +1,51 @@
+// Alan Verbilo 2021-2023 for VaRest plugin.
+
+#pragma once
+
+#include "CoreMinimal.h"
+#include "Kismet/BlueprintAsyncActionBase.h"
+#include "VaRestRequestJSON.h"
+#include "VaRestSubsystem.h"
+#include "VaRestTypes.h"
+#include "VaRestSimpleRequestAsync.generated.h"
+
+/**
+* This is async function that encapsulate callback delegates and make your code more clear.
+* 
+* Also this function works with String format messages instead of VaRest internal json serializer,
+* to give user ability to use third party json serializer.
+*
+* Alan Verbilo recommend to use next free json serializer:
+* https://www.unrealengine.com/marketplace/en-US/product/dbjson
+*/
+
+DECLARE_DYNAMIC_MULTICAST_DELEGATE_TwoParams(FResponseDelegate, int32, ResponseCode, FString, ResposeMessage);
+
+UCLASS(MinimalAPI)
+class UVaRestSimpleRequestAsync : public UBlueprintAsyncActionBase
+{
+	GENERATED_BODY()
+
+	FString URL;
+	EVaRestRequestVerb Verb;
+	EVaRestRequestContentType ContentType;
+	FString RequestMessage;
+
+	UPROPERTY(BlueprintAssignable)
+	FResponseDelegate OnSuccess;
+
+	UPROPERTY(BlueprintAssignable)
+	FResponseDelegate OnFail;
+
+	UFUNCTION()
+	void OnSuccessResend(class UVaRestRequestJSON* RequestJSON);
+
+	UFUNCTION()
+	void OnFailureResend(class UVaRestRequestJSON* RequestJSON);
+
+	virtual void Activate() override;
+
+public:
+	UFUNCTION(BlueprintCallable, meta = (BlueprintInternalUseOnly = "true", DisplayName = "VaRest Simple Request Async"))
+	static UVaRestSimpleRequestAsync* VaRestSimpleRequestAsync(const FString URL, EVaRestRequestVerb Verb, EVaRestRequestContentType ContentType, const FString RequestMessage);
+};