5 files changed, 26 insertions, 38 deletions
diff --git a/src/afb-api-dbus.c b/src/afb-api-dbus.c
index 905c723d..7452339b 100644
--- a/src/afb-api-dbus.c
+++ b/src/afb-api-dbus.c
@@ -32,6 +32,7 @@
 #include "afb-common.h"
 
 #include "session.h"
+#include "afb-msg-json.h"
 #include "afb-apis.h"
 #include "afb-api-so.h"
 #include "afb-context.h"
@@ -400,19 +401,7 @@ static struct json_object *dbus_req_json(struct dbus_req *dreq)
 /* get the argument of the request of 'name' */
 static struct afb_arg dbus_req_get(struct dbus_req *dreq, const char *name)
 {
-	struct afb_arg arg;
-	struct json_object *value, *root;
-
-	root = dbus_req_json(dreq);
-	if (root != NULL && json_object_object_get_ex(root, name, &value)) {
-		arg.name = name;
-		arg.value = json_object_get_string(value);
-	} else {
-		arg.name = NULL;
-		arg.value = NULL;
-	}
-	arg.path = NULL;
-	return arg;
+	return afb_msg_json_get_arg(dbus_req_json(dreq), name);
 }
 
 static void dbus_req_reply(struct dbus_req *dreq, uint8_t type, const char *first, const char *second)
diff --git a/src/afb-msg-json.c b/src/afb-msg-json.c
index 8f543ff1..59af9d96 100644
--- a/src/afb-msg-json.c
+++ b/src/afb-msg-json.c
@@ -19,6 +19,8 @@
 
 #include <json-c/json.h>
 
+#include <afb/afb-req-itf.h>
+
 #include "afb-msg-json.h"
 #include "afb-context.h"
 
@@ -89,3 +91,20 @@ struct json_object *afb_msg_json_event(const char *event, struct json_object *ob
 	return msg;
 }
 
+struct afb_arg afb_msg_json_get_arg(struct json_object *object, const char *name)
+{
+	struct afb_arg arg;
+	struct json_object *value;
+
+	if (json_object_object_get_ex(object, name, &value)) {
+		arg.name = name;
+		arg.value = json_object_get_string(value);
+	} else {
+		arg.name = NULL;
+		arg.value = NULL;
+	}
+	arg.path = NULL;
+	return arg;
+}
+
+
diff --git a/src/afb-msg-json.h b/src/afb-msg-json.h
index 53ab0861..59827bed 100644
--- a/src/afb-msg-json.h
+++ b/src/afb-msg-json.h
@@ -19,6 +19,7 @@
 
 struct json_object;
 struct afb_context;
+struct afb_arg;
 
 extern struct json_object *afb_msg_json_reply(const char *status, const char *info, struct json_object *resp, struct afb_context *context, const char *reqid);
 extern struct json_object *afb_msg_json_reply_ok(const char *info, struct json_object *resp, struct afb_context *context, const char *reqid);
@@ -26,3 +27,5 @@ extern struct json_object *afb_msg_json_reply_error(const char *status, const ch
 
 extern struct json_object *afb_msg_json_event(const char *event, struct json_object *object);
 
+extern struct afb_arg afb_msg_json_get_arg(struct json_object *object, const char *name);
+
diff --git a/src/afb-subcall.c b/src/afb-subcall.c
index 4d18bee7..bf641738 100644
--- a/src/afb-subcall.c
+++ b/src/afb-subcall.c
@@ -99,18 +99,7 @@ static struct json_object *subcall_json(struct afb_subcall *subcall)
 
 static struct afb_arg subcall_get(struct afb_subcall *subcall, const char *name)
 {
-	struct afb_arg arg;
-	struct json_object *value;
-
-	if (json_object_object_get_ex(subcall->args, name, &value)) {
-		arg.name = name;
-		arg.value = json_object_get_string(value);
-	} else {
-		arg.name = NULL;
-		arg.value = NULL;
-	}
-	arg.path = NULL;
-	return arg;
+	return afb_msg_json_get_arg(subcall->args, name);
 }
 
 static void subcall_emit(struct afb_subcall *subcall, int iserror, struct json_object *object)
diff --git a/src/afb-ws-json1.c b/src/afb-ws-json1.c
index 31e9e42e..03e57fd5 100644
--- a/src/afb-ws-json1.c
+++ b/src/afb-ws-json1.c
@@ -224,19 +224,7 @@ static struct json_object *wsreq_json(struct afb_wsreq *wsreq)
 
 static struct afb_arg wsreq_get(struct afb_wsreq *wsreq, const char *name)
 {
-	struct afb_arg arg;
-	struct json_object *value, *root;
-
-	root = wsreq_json(wsreq);
-	if (json_object_object_get_ex(root, name, &value)) {
-		arg.name = name;
-		arg.value = json_object_get_string(value);
-	} else {
-		arg.name = NULL;
-		arg.value = NULL;
-	}
-	arg.path = NULL;
-	return arg;
+	return afb_msg_json_get_arg(wsreq_json(wsreq), name);
 }
 
 static void wsreq_fail(struct afb_wsreq *wsreq, const char *status, const char *info)