Work with the HTTP protocol in UE4

Development Programming & Scripting Multiplayer & Networking
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1

How do I download code page from the Internet using HTTP.

UObject* WorldContextObject; UWorld* World = GEngine->GetWorldFromContextObject(WorldContextObject); UServerLoader* obj = (UServerLoader*)StaticConstructObject(UServerLoader::StaticClass()); TSharedRef< IHttpRequest > HttpRequest = FHttpModule::Get().CreateRequest(); HttpRequest->SetVerb("GET"); HttpRequest->SetURL(FString("http://example.com")); HttpRequest->OnProcessRequestComplete().BindUObject(obj, [](FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful) {	if (!bWasSuccessful)	{	UE_LOG(LogTemp, Error, TEXT("Response was invalid! Please check the URL."));	return;	}	FString responseData = Response->GetContentAsString(); }); HttpRequest->ProcessRequest();

This code produces the error. What am I doing wrong?

2

This is a bit off-topic but how did you managed to get HTTP work? I get FHttpModule is undefined eventhough I added these two line in Project.Build.cs

 PrivateDependencyModuleNames.AddRange(new string[] { "HTTP" }); PrivateIncludePathModuleNames.AddRange(new string[] { "HTTP" });

and of course included http.h.

3

I also included http.h and added HTTP module and I were errors during compilation. How can I get the HTML source of page with this module?

4

I actually had wrong http.h included so I used this to get it work.

#include "Runtime/Online/HTTP/Public/Http.h"

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5

What have you wrote in the code to download HTML page from the Internet?

6

I’m currently doing HTTP POST requests only.

7

Trying to follow the
UE4与WEB服务器交互(json)