diff --git a/src/worker.c b/src/worker.c
index 666159d..3daa5d6 100644
--- a/src/worker.c
+++ b/src/worker.c
@@ -121,7 +121,7 @@ header_cb(void *contents, size_t size, size_t nmemb, void *userp)
 	return realsize;
 }
 
-static CURLMcode init(CURLM *cm, char *method, char *url, int timeout_milliseconds, struct curl_slist *request_headers, char *reqBody, int64 id, CurlData *cdata)
+static void init(CURLM *cm, char *method, char *url, int timeout_milliseconds, struct curl_slist *request_headers, char *reqBody, int64 id, CurlData *cdata)
 {
 	CURL *eh = curl_easy_init();
 
@@ -132,9 +132,12 @@ static CURLMcode init(CURLM *cm, char *method, char *url, int timeout_millisecon
 	(void)pushJsonbValue(&response_headers, WJB_BEGIN_OBJECT, NULL);
 	cdata->response_headers = response_headers;
 	cdata->id = id;
-	cdata->request_headers = request_headers;
 
-	request_headers = curl_slist_append(request_headers, "User-Agent: pg_net/" EXTVERSION);
+	struct curl_slist *new_headers = curl_slist_append(request_headers, "User-Agent: pg_net/" EXTVERSION);
+	if(new_headers == NULL)
+		ereport(ERROR, errmsg("curl_slist_append returned NULL"));
+
+	cdata->request_headers = new_headers;
 
 	if (strcasecmp(method, "GET") == 0) {
 		if (reqBody) {
@@ -174,7 +177,10 @@ static CURLMcode init(CURLM *cm, char *method, char *url, int timeout_millisecon
 #else
 	CURL_EZ_SETOPT(eh, CURLOPT_PROTOCOLS, CURLPROTO_HTTP | CURLPROTO_HTTPS);
 #endif
-	return curl_multi_add_handle(cm, eh);
+
+	CURLMcode code = curl_multi_add_handle(cm, eh);
+	if(code != CURLM_OK)
+		ereport(ERROR, errmsg("curl_multi_add_handle returned %s", curl_multi_strerror(code)));
 }
 
 bool is_extension_loaded(){
@@ -190,7 +196,7 @@ bool is_extension_loaded(){
 void
 worker_main(Datum main_arg)
 {
-	CURLM *cm=NULL;
+	CURLM *curl_mhandle=NULL;
 	CURL *eh=NULL;
 	CURLMsg *msg=NULL;
 	int still_running=0, msgs_left=0;
@@ -280,10 +286,14 @@ worker_main(Datum main_arg)
 				res = curl_global_init(CURL_GLOBAL_ALL);
 
 				if(res) {
-					elog(ERROR, "error: curl_global_init() returned %d\n", res);
+					ereport(ERROR, errmsg("curl_global_init() returned %s\n", curl_easy_strerror(res)));
 				}
 
-				cm = curl_multi_init();
+				curl_mhandle = curl_multi_init();
+
+				if(!curl_mhandle) {
+					ereport(ERROR, errmsg("curl_multi_init()"));
+				}
 
 				for (int j = 0; j < SPI_processed; j++)
 				{
@@ -308,7 +318,7 @@ worker_main(Datum main_arg)
 						CurlData *cdata;
 
 						if (strcasecmp(method, "GET") != 0 && strcasecmp(method, "POST") != 0 && strcasecmp(method, "DELETE") != 0) {
-							elog(ERROR, "error: Unsupported request method %s\n", method);
+							ereport(ERROR, errmsg("Unsupported request method %s", method));
 						}
 
 						headersBin = SPI_getbinval(SPI_tuptable->vals[j], SPI_tuptable->tupdesc, 5, &tupIsNull);
@@ -321,11 +331,7 @@ worker_main(Datum main_arg)
 
 						cdata = palloc(sizeof(CurlData));
 
-						res = init(cm, method, url, timeout_milliseconds, request_headers, body, id, cdata);
-
-						if(res) {
-							elog(ERROR, "error: init() returned %d\n", res);
-						}
+						init(curl_mhandle, method, url, timeout_milliseconds, request_headers, body, id, cdata);
 				}
 			}
 			else
@@ -337,22 +343,22 @@ worker_main(Datum main_arg)
 		do {
 				int numfds=0;
 
-				res = curl_multi_perform(cm, &still_running);
+				res = curl_multi_perform(curl_mhandle, &still_running);
 
 				if(res != CURLM_OK) {
-						elog(ERROR, "error: curl_multi_perform() returned %d\n", res);
+						ereport(ERROR, errmsg("error: curl_multi_perform() returned %d", res));
 				}
 
 				/*wait at least 1 second(1000 ms) in case all responses are slow*/
 				/*this avoids busy waiting and higher CPU usage*/
-				res = curl_multi_wait(cm, NULL, 0, 1000, &numfds);
+				res = curl_multi_wait(curl_mhandle, NULL, 0, 1000, &numfds);
 
 				if(res != CURLM_OK) {
-						elog(ERROR, "error: curl_multi_wait() returned %d\n", res);
+						ereport(ERROR, errmsg("error: curl_multi_wait() returned %d", res));
 				}
 		} while(still_running);
 
-		while ((msg = curl_multi_info_read(cm, &msgs_left))) {
+		while ((msg = curl_multi_info_read(curl_mhandle, &msgs_left))) {
 				if (msg->msg == CURLMSG_DONE) {
 						CURLcode return_code = msg->data.result;
 						eh = msg->easy_handle;
@@ -414,14 +420,19 @@ worker_main(Datum main_arg)
 							pfree(cdata);
 						}
 
-						curl_multi_remove_handle(cm, eh);
+						res = curl_multi_remove_handle(curl_mhandle, eh);
+						if(res != CURLM_OK)
+							ereport(ERROR, errmsg("curl_multi_remove_handle: %s", curl_multi_strerror(res)));
+
 						curl_easy_cleanup(eh);
 				} else {
-						elog(ERROR, "error: after curl_multi_info_read(), CURLMsg=%d\n", msg->msg);
+						ereport(ERROR, errmsg("curl_multi_info_read(), CURLMsg=%d\n", msg->msg));
 				}
 		}
 
-		curl_multi_cleanup(cm);
+		res = curl_multi_cleanup(curl_mhandle);
+		if(res != CURLM_OK)
+			ereport(ERROR, errmsg("curl_multi_cleanup: %s", curl_multi_strerror(res)));
 
 		SPI_finish();
 		PopActiveSnapshot();