Hi,
I want to call a service which is on composer remote thing from C SDK. This is the code I used:
twInfoTable * it = NULL;
int res = TW_OK;
int count = 0;
res = twApi_InvokeService(TW_THING,"SteamSensor1","getInfoTable", NULL, &it, -1, FALSE);
if (res) {
TW_LOG(TW_INFO," error calling service getInfoTable !");
} else {
/* print data from infotable returned*/
if (!it) return;
count = twList_GetCount(it->rows);
printf("returned "+count);
while (count > 0) {
char * labelField;
char * parentField;
twInfoTable_GetString(it, "labelField", count - 1, &labelField);
twInfoTable_GetString(it, "parentField", count - 1, &parentField);
printf("labelField is: ");
printf(labelField);
printf("parentField is: ");
printf(parentField);
}
}
but I didnt get the information printed on console as expected, and program will go to
if (res) {
TW_LOG(TW_INFO," error calling service getInfoTable !");
}
which means service call is unsuccessful, and from the console log, I could see it informs "Not Authenticated Yet", I wonder if this is why I cannot call service, but I dont know how to set authentication for calling a service on composer from C SDK, I already set a correct TW_APP_KEY and it can connect successfully to composer just service call would fail.
Any suggesion or advice would be appreciated!
Thanks,
Br,
Anna
