I have dummy web service with URI =http://localhost/IO_100_Service.svc/xml?id={id} which return data in XML format I want to call this service using WINInet APi in VC++.Can anybody help me how to use contruct "HttpSendRequest" method to add header and data to call this service .
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1 Answer
Here is a sample code you should be able to modify to your needs. I tested it with VS2005 using command line template project.
#include <tchar.h>
#include <wininet.h>
/// ....
HINTERNET hIntSession =
::InternetOpen(_T("MyApp"), INTERNET_OPEN_TYPE_DIRECT, NULL, NULL, 0);
HINTERNET hHttpSession =
InternetConnect(hIntSession, _T("api.twitter.com"), 80, 0, 0, INTERNET_SERVICE_HTTP, 0, NULL);
HINTERNET hHttpRequest = HttpOpenRequest(
hHttpSession,
_T("GET"),
_T("1/statuses/user_timeline.xml?screen_name=twitterapi"),
0, 0, 0, INTERNET_FLAG_RELOAD, 0);
TCHAR* szHeaders = _T("Content-Type: text/html\nMySpecialHeder: whatever");
CHAR szReq[1024] = "";
if( !HttpSendRequest(hHttpRequest, szHeaders, _tcslen(szHeaders), szReq, strlen(szReq))) {
DWORD dwErr = GetLastError();
/// handle error
}
CHAR szBuffer[1025];
DWORD dwRead=0;
while(::InternetReadFile(hHttpRequest, szBuffer, sizeof(szBuffer)-1, &dwRead) && dwRead) {
szBuffer[dwRead] = 0;
OutputDebugStringA(szBuffer);
dwRead=0;
}
::InternetCloseHandle(hHttpRequest);
::InternetCloseHandle(hHttpSession);
::InternetCloseHandle(hIntSession);
