UE5 UC++流式请求 || Varest流式调用Coze（但一次性回复，不太推荐）

news2025/10/31 11:39:45

文章仅供参考。C++调用的是公司后台的接口，博主未尝试用C++调用Coze的接口，需要补充更多的代码。

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C++

#include "HttpModule.h"
#include "HttpManager.h"
#include "Http.h"

DECLARE_DYNAMIC_MULTICAST_DELEGATE_OneParam(FMyCustomEventDelegate, FString, Str1);
public:
	UPROPERTY(BlueprintAssignable, Category = "MyHTTP2")
		FMyCustomEventDelegate StreamingRequestBindEvent;

void UBPC_CJiaJia_streamRequest_V01::StartStreamingRequest(const FString& Url, const FString& Question)
{
	TSharedRef<IHttpRequest> HttpRequest = FHttpModule::Get().CreateRequest();
	HttpRequest->SetVerb("GET"); // 设置请求方法为GET
	HttpRequest->SetURL(Url); // 设置请求的URL
	HttpRequest->SetHeader(TEXT("Content-Type"), TEXT("text/event-stream")); // 设置请求头

	// 请求中返回
	//HttpRequest->OnRequestProgress().BindLambda([this](FHttpRequestPtr Request, int32 BytesSent, int32 BytesReceived) {
	//		FString ContentString = Request->GetResponse()->GetContentAsString();
	//		this->StreamingRequestBindEvent.Broadcast(ContentString);
	//	}
	//);

	// 请求结束返回
	HttpRequest->OnProcessRequestComplete().BindLambda([this](FHttpRequestPtr Request, FHttpResponsePtr Response, bool bWasSuccessful) {
		if (bWasSuccessful) {
			this->StreamingRequestBindEvent.Broadcast(Response->GetContentAsString());
		}
		}
	);

	// 开始处理请求
	HttpRequest->ProcessRequest();
}

请求时，网址+？+参数