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 <C_CkRest.h>
void ChilkatSample(void)
{
BOOL success;
HCkRest rest;
BOOL bTls;
BOOL bAutoReconnect;
int statusCode;
int numHeaders;
int i;
const char *name;
const char *value;
success = FALSE;
rest = CkRest_Create();
bTls = TRUE;
bAutoReconnect = TRUE;
success = CkRest_Connect(rest,"example.com",443,bTls,bAutoReconnect);
if (success == FALSE) {
printf("%s\n",CkRest_lastErrorText(rest));
CkRest_Dispose(rest);
return;
}
success = CkRest_SendReqNoBody(rest,"GET","/api/items/123");
if (success == FALSE) {
printf("%s\n",CkRest_lastErrorText(rest));
CkRest_Dispose(rest);
return;
}
statusCode = CkRest_ReadResponseHeader(rest);
if (statusCode < 0) {
printf("%s\n",CkRest_lastErrorText(rest));
CkRest_Dispose(rest);
return;
}
// Enumerate the response header fields by zero-based index. ResponseHdrName returns the field name
// and ResponseHdrValue returns the value at the same index.
numHeaders = CkRest_getNumResponseHeaders(rest);
for (i = 0; i <= numHeaders - 1; i++) {
name = CkRest_responseHdrName(rest,i);
if (CkRest_getLastMethodSuccess(rest) == FALSE) {
printf("%s\n",CkRest_lastErrorText(rest));
CkRest_Dispose(rest);
return;
}
value = CkRest_responseHdrValue(rest,i);
if (CkRest_getLastMethodSuccess(rest) == FALSE) {
printf("%s\n",CkRest_lastErrorText(rest));
CkRest_Dispose(rest);
return;
}
printf("%s: %s\n",name,value);
}
CkRest_Dispose(rest);
}