--- a/libsci/apic.c	Wed Aug 17 09:11:44 2022 +0200
+++ b/libsci/apic.c	Wed Aug 17 09:11:58 2022 +0200
@@ -31,6 +31,7 @@
 	CURL *curl;
 	CURLcode code;
 	struct curl_slist *headers;
+	char keyhdr[128];
 };
 
 struct apiconf apiconf = {
@@ -77,30 +78,30 @@
 	return fp;
 }
 
-static struct curlpack
-create_curl(FILE *fp, const char *body, const char *url)
+static void
+create_curl(struct curlpack *pack, FILE *fp, const char *body, const char *url)
 {
-	struct curlpack pack = {0};
+	/* Create API key string. */
+	snprintf(pack->keyhdr, sizeof (pack->keyhdr), "X-Api-Key: %s", apiconf.key);
 
-	pack.headers = curl_slist_append(pack.headers, "Content-Type: application/json");
-	pack.curl = curl_easy_init();
-	curl_easy_setopt(pack.curl, CURLOPT_HTTPHEADER, pack.headers);
-	curl_easy_setopt(pack.curl, CURLOPT_URL, url);
-	curl_easy_setopt(pack.curl, CURLOPT_FOLLOWLOCATION, 1L);
-	curl_easy_setopt(pack.curl, CURLOPT_TIMEOUT, 3L);
-	curl_easy_setopt(pack.curl, CURLOPT_WRITEFUNCTION, writer);
-	curl_easy_setopt(pack.curl, CURLOPT_WRITEDATA, fp);
-	curl_easy_setopt(pack.curl, CURLOPT_NOSIGNAL, 1L);
+	pack->headers = curl_slist_append(pack->headers, "Content-Type: application/json");
+	pack->headers = curl_slist_append(pack->headers, pack->keyhdr);
+	pack->curl = curl_easy_init();
+	curl_easy_setopt(pack->curl, CURLOPT_HTTPHEADER, pack->headers);
+	curl_easy_setopt(pack->curl, CURLOPT_URL, url);
+	curl_easy_setopt(pack->curl, CURLOPT_FOLLOWLOCATION, 1L);
+	curl_easy_setopt(pack->curl, CURLOPT_TIMEOUT, 3L);
+	curl_easy_setopt(pack->curl, CURLOPT_WRITEFUNCTION, writer);
+	curl_easy_setopt(pack->curl, CURLOPT_WRITEDATA, fp);
+	curl_easy_setopt(pack->curl, CURLOPT_NOSIGNAL, 1L);
 
 	/* Assume POST request if there is a body. */
 	if (body) {
-		curl_easy_setopt(pack.curl, CURLOPT_POSTFIELDS, body);
-		curl_easy_setopt(pack.curl, CURLOPT_POSTFIELDSIZE, strlen(body));
+		curl_easy_setopt(pack->curl, CURLOPT_POSTFIELDS, body);
+		curl_easy_setopt(pack->curl, CURLOPT_POSTFIELDSIZE, strlen(body));
 	}
 
-	pack.code = curl_easy_perform(pack.curl);
-
-	return pack;
+	pack->code = curl_easy_perform(pack->curl);
 }
 
 static json_t *
@@ -111,13 +112,13 @@
 	size_t responsesz;
 	json_t *doc = NULL;
 	json_error_t error;
-	struct curlpack curl;
+	struct curlpack curl = {0};
 
 	memset(req, 0, sizeof (*req));
 
 	url  = create_url(fmt, ap);
 	fp   = create_file(&response, &responsesz);
-	curl = create_curl(fp, body, url);
+	create_curl(&curl, fp, body, url);
 
 	/* Perform that request now. */
 	fclose(fp);
@@ -151,9 +152,6 @@
 	ret = perform(req, NULL, fmt, ap);
 	va_end(ap);
 
-	if (!ret || (!json_is_object(ret) && !json_is_array(ret)))
-		snprintf(req->error, sizeof (req->error), "invalid JSON document received");
-
 	return ret;
 }
 
@@ -177,7 +175,7 @@
 	free(body);
 	json_decref(ret);
 
-	return 0;
+	return req->error[0] ? -1 : 0;
 }
 
 json_t *