Poco C++ Net Post Request is handled twice - c++

Question

I have a strange issue when sending a Post Request to the Poco HTTP Server.
This is my example Code:
#include <iostream>
#include <Poco/Util/ServerApplication.h>
#include <Poco/Runnable.h>
#include <Poco/Random.h>
#include <Poco/Net/HTTPServerRequest.h>
#include <Poco/Net/HTTPServerResponse.h>
#include <Poco/Net/HTTPRequestHandlerFactory.h>
#include <Poco/Net/HTTPRequestHandler.h>
#include <Poco/Environment.h>
#include <Poco/Net/ServerSocket.h>
#include <Poco/Net/HTTPServer.h>
class ErrorEndpoint : public Poco::Net::HTTPRequestHandler {
public:
ErrorEndpoint() {}
void handleRequest(Poco::Net::HTTPServerRequest& request, Poco::Net::HTTPServerResponse& response) {
response.setStatus(status_);
std::string answer{ R"({"error":"failed"})" };
response.setContentLength(answer.length());
response.setContentType("application/json");
auto& istream = response.send();
istream << answer;
}
private:
std::string errorMessage_{};
Poco::Net::HTTPResponse::HTTPStatus status_{};
};
class MyRequestHandlerFactory: public Poco::Net::HTTPRequestHandlerFactory {
public:
MyRequestHandlerFactory() {}
Poco::Net::HTTPRequestHandler*
createRequestHandler(const Poco::Net::HTTPServerRequest& request) override {
std::cout << request.getURI() << '\n';
return new ErrorEndpoint;
}
};
class MetricsSampleApp : public Poco::Util::ServerApplication {
protected:
void initialize(Poco::Util::Application& app) override {
loadConfiguration();
Poco::Util::ServerApplication::initialize(app);
}
int main(const std::vector<std::string>& args) override {
std::string ver = Poco::format("%d.%d.%d", static_cast<int>(Poco::Environment::libraryVersion() >> 24),
static_cast<int>((Poco::Environment::libraryVersion() >> 16) & 0xFF),
static_cast<int>((Poco::Environment::libraryVersion() >> 8) & 0xFF));
std::cout << ver << '\n';
Poco::UInt16 port = 8080;
Poco::Net::ServerSocket svs(port);
Poco::Net::HTTPServer srv(new MyRequestHandlerFactory(), svs, new Poco::Net::HTTPServerParams());
srv.start();
waitForTerminationRequest();
srv.stop();
return EXIT_OK;
}
};
POCO_SERVER_MAIN(MetricsSampleApp)
If i'm now running the following command:
Invoke-RestMethod -Uri "http://localhost:8080/dummy" -H #{"Content-Type" = "application/json"} -Method Post -Body '{"format": "error","node id": "1"}'
i get the following output:
1.12.3
/dummy
"error","node
The first line is the Poco Version which is printed after the start of the example Program.
The second is the URI to which i send the POST Request.
The third is printed together with the second and contains parts of the POST Body.
I'm using Poco in Version 1.12.3 on Windows.
Changing Invoke-RestMethod with curl leads to the excat same error.