metrics: use prom metrics, and added some additional metrics

rhodecode/api/__init__.py

@@ -179,7 +179,7 @@ def exception_view(exc, request):
 
         statsd = request.registry.statsd
         if statsd:
-            statsd.incr('rhodecode_exception', tags=["api"])
+            statsd.incr('rhodecode_exception_total', tags=["exc_source:api"])
 
     return jsonrpc_error(request, fault_message, rpc_id)
 
@@ -296,9 +296,14 @@ def request_view(request):
     # register some common functions for usage
     attach_context_attributes(TemplateArgs(), request, request.rpc_user.user_id)
 
+    statsd = request.registry.statsd
+
     try:
         ret_value = func(**call_params)
-        return jsonrpc_response(request, ret_value)
+        resp = jsonrpc_response(request, ret_value)
+        if statsd:
+            statsd.incr('rhodecode_api_call_success_total')
+        return resp
     except JSONRPCBaseError:
         raise
     except Exception:
@@ -308,9 +313,12 @@ def request_view(request):
             id(exc_info), exc_info, prefix='rhodecode-api')
         error_headers = [('RhodeCode-Exception-Id', str(exc_id)),
                          ('RhodeCode-Exception-Type', str(exc_type_name))]
-        return jsonrpc_error(
+        err_resp = jsonrpc_error(
             request, retid=request.rpc_id, message='Internal server error',
             headers=error_headers)
+        if statsd:
+            statsd.incr('rhodecode_api_call_fail_total')
+        return err_resp
 
 
 def setup_request(request):