C++
C++
Enumerate REST Response Header Names
See more REST Examples
Demonstrates Rest.ResponseHdrName, which returns the field name of the response header at a zero-based index. The example enumerates all headers, pairing each name with its value.
Background. Response headers can be enumerated by index from 0 through NumResponseHeaders minus one. ResponseHdrName and ResponseHdrValue use the same index for a given header.
Chilkat C++ Downloads
#include <CkRest.h>
void ChilkatSample(void)
{
bool success = false;
CkRest rest;
bool bTls = true;
bool bAutoReconnect = true;
success = rest.Connect("example.com",443,bTls,bAutoReconnect);
if (success == false) {
std::cout << rest.lastErrorText() << "\r\n";
return;
}
success = rest.SendReqNoBody("GET","/api/items/123");
if (success == false) {
std::cout << rest.lastErrorText() << "\r\n";
return;
}
int statusCode = rest.ReadResponseHeader();
if (statusCode < 0) {
std::cout << rest.lastErrorText() << "\r\n";
return;
}
// Enumerate the response header fields by zero-based index. ResponseHdrName returns the field name
// and ResponseHdrValue returns the value at the same index.
int numHeaders = rest.get_NumResponseHeaders();
int i;
for (i = 0; i <= numHeaders - 1; i++) {
const char *name = rest.responseHdrName(i);
if (rest.get_LastMethodSuccess() == false) {
std::cout << rest.lastErrorText() << "\r\n";
return;
}
const char *value = rest.responseHdrValue(i);
if (rest.get_LastMethodSuccess() == false) {
std::cout << rest.lastErrorText() << "\r\n";
return;
}
std::cout << name << ": " << value << "\r\n";
}
}