Civet web server integration plugin for Unreal Engine 4
Web server usage (f.e. in AMyGameMode::BeginPlay()))
// Launch web server WebServer = NewObject<UPsWebServerWrapper>(this); WebServer->StartServer(); // Create and register api handler auto PingHandler = NewObject<UMyServerPingHandler>(this); PingHandler->SetHeader(TEXT("Server"), TEXT("MyServer/") + MyGI->GetGameVersion()); // Optional header set WebServer->AddHandler(PingHandler, TEXT("/api/ping"));If uses UMyServerPingHandler class that defined as:
#pragma once #include "PsWebServerHandler.h" #include "MyServerPingHandler.generated.h" UCLASS() class UMyServerPingHandler : public UPsWebServerHandler { GENERATED_BODY() public: /** Override to implement your custom logic of request processing */ virtual void ProcessRequest_Implementation(const FGuid& RequestUniqueId, const FString& RequestData) override; }; And its definition:
#include "MyServerPingHandler.h" #include "PsWebServerDefines.h" #include "VaRestJsonObject.h" /* * Check that request has valid json encoded body and return its copy in response */ void UMyServerPingHandler::ProcessRequest_Implementation(const FGuid& RequestUniqueId, const FString& RequestData) { // Validate json format with VaRest UVaRestJsonObject* JsonTemp = UVaRestJsonObject::ConstructJsonObject(this); if (JsonTemp->DecodeJson(RequestData)) { ProcessRequestFinish(RequestUniqueId, FString::Printf(TEXT("{\"request_data\":%s}"), *RequestData)); return; } UE_LOG(LogMyGame, Error, TEXT("%s: can't validate data as json one: %s"), *PS_FUNC_LINE, *RequestData); const FString ErrorStr = TEXT(R"({"error":"1000","message":"Request data is not a valid json object"})"); ProcessRequestFinish(RequestUniqueId, ErrorStr); }