support application/json request body

oml/oxtornado.py

@@ -83,6 +83,15 @@ class ApiHandler(tornado.web.RequestHandler):
         context = self._context
         if context is None:
             context = defaultcontext
+        action = None
+        if request.headers.get('Content-Type') == 'application/json':
+            try:
+                r = json.loads(request.body.decode())
+                action = r['action']
+                data = r['data']
+            except:
+                action = None
+        if not action:
             action = request.arguments.get('action', [None])[0].decode('utf-8')
             data = request.arguments.get('data', [b'{}'])[0]
             data = json.loads(data.decode('utf-8')) if data else {}