diff --git a/api/metric.swagger.json b/api/metric.swagger.json
index 3f2cd1a..20d6fa3 100644
--- a/api/metric.swagger.json
+++ b/api/metric.swagger.json
@@ -11,39 +11,5 @@
     "application/json"
   ],
   "paths": {},
-  "definitions": {
-    "protobufAny": {
-      "type": "object",
-      "properties": {
-        "type_url": {
-          "type": "string"
-        },
-        "value": {
-          "type": "string",
-          "format": "byte"
-        }
-      }
-    },
-    "runtimeError": {
-      "type": "object",
-      "properties": {
-        "error": {
-          "type": "string"
-        },
-        "code": {
-          "type": "integer",
-          "format": "int32"
-        },
-        "message": {
-          "type": "string"
-        },
-        "details": {
-          "type": "array",
-          "items": {
-            "$ref": "#/definitions/protobufAny"
-          }
-        }
-      }
-    }
-  }
+  "definitions": {}
 }
diff --git a/api/namespace.pb.go b/api/namespace.pb.go
index 52b8e42..1b114ff 100644
--- a/api/namespace.pb.go
+++ b/api/namespace.pb.go
@@ -140,11 +140,11 @@ var fileDescriptor_ecb1e126f615f5dd = []byte{
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ context.Context
-var _ grpc.ClientConnInterface
+var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion6
+const _ = grpc.SupportPackageIsVersion4
 
 // NamespaceServiceClient is the client API for NamespaceService service.
 //
@@ -154,10 +154,10 @@ type NamespaceServiceClient interface {
 }
 
 type namespaceServiceClient struct {
-	cc grpc.ClientConnInterface
+	cc *grpc.ClientConn
 }
 
-func NewNamespaceServiceClient(cc grpc.ClientConnInterface) NamespaceServiceClient {
+func NewNamespaceServiceClient(cc *grpc.ClientConn) NamespaceServiceClient {
 	return &namespaceServiceClient{cc}
 }
 
diff --git a/api/namespace.swagger.json b/api/namespace.swagger.json
index 447ff85..1cbd51f 100644
--- a/api/namespace.swagger.json
+++ b/api/namespace.swagger.json
@@ -20,12 +20,6 @@
             "schema": {
               "$ref": "#/definitions/apiListNamespacesResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "tags": [
@@ -57,39 +51,6 @@
           "type": "string"
         }
       }
-    },
-    "protobufAny": {
-      "type": "object",
-      "properties": {
-        "type_url": {
-          "type": "string"
-        },
-        "value": {
-          "type": "string",
-          "format": "byte"
-        }
-      }
-    },
-    "runtimeError": {
-      "type": "object",
-      "properties": {
-        "error": {
-          "type": "string"
-        },
-        "code": {
-          "type": "integer",
-          "format": "int32"
-        },
-        "message": {
-          "type": "string"
-        },
-        "details": {
-          "type": "array",
-          "items": {
-            "$ref": "#/definitions/protobufAny"
-          }
-        }
-      }
     }
   }
 }
diff --git a/api/secret.pb.go b/api/secret.pb.go
index 011d07f..971f47b 100644
--- a/api/secret.pb.go
+++ b/api/secret.pb.go
@@ -714,60 +714,60 @@ func init() { proto.RegisterFile("secret.proto", fileDescriptor_6acf428160d7a216
 
 var fileDescriptor_6acf428160d7a216 = []byte{
 	// 713 bytes of a gzipped FileDescriptorProto
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+	0x31, 0x2a, 0xaf, 0xf9, 0x50, 0x79, 0xa7, 0x25, 0x79, 0x9d, 0xb7, 0x7e, 0x06, 0x00, 0x00, 0xff,
+	0xff, 0x9d, 0x7b, 0x21, 0x46, 0xdb, 0x08, 0x00, 0x00,
 }
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ context.Context
-var _ grpc.ClientConnInterface
+var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion6
+const _ = grpc.SupportPackageIsVersion4
 
 // SecretServiceClient is the client API for SecretService service.
 //
@@ -784,10 +784,10 @@ type SecretServiceClient interface {
 }
 
 type secretServiceClient struct {
-	cc grpc.ClientConnInterface
+	cc *grpc.ClientConn
 }
 
-func NewSecretServiceClient(cc grpc.ClientConnInterface) SecretServiceClient {
+func NewSecretServiceClient(cc *grpc.ClientConn) SecretServiceClient {
 	return &secretServiceClient{cc}
 }
 
diff --git a/api/secret.pb.gw.go b/api/secret.pb.gw.go
index f58bbc8..a88e134 100644
--- a/api/secret.pb.gw.go
+++ b/api/secret.pb.gw.go
@@ -573,14 +573,18 @@ func local_request_SecretService_AddSecretKeyValue_0(ctx context.Context, marsha
 
 }
 
-var (
-	filter_SecretService_UpdateSecretKeyValue_0 = &utilities.DoubleArray{Encoding: map[string]int{"namespace": 0, "secret": 1, "name": 2}, Base: []int{1, 1, 1, 2, 0, 0}, Check: []int{0, 1, 1, 3, 2, 4}}
-)
-
 func request_SecretService_UpdateSecretKeyValue_0(ctx context.Context, marshaler runtime.Marshaler, client SecretServiceClient, req *http.Request, pathParams map[string]string) (proto.Message, runtime.ServerMetadata, error) {
 	var protoReq UpdateSecretKeyValueRequest
 	var metadata runtime.ServerMetadata
 
+	newReader, berr := utilities.IOReaderFactory(req.Body)
+	if berr != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
+	}
+	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq.Secret); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
 	var (
 		val string
 		ok  bool
@@ -610,13 +614,6 @@ func request_SecretService_UpdateSecretKeyValue_0(ctx context.Context, marshaler
 		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "secret.name", err)
 	}
 
-	if err := req.ParseForm(); err != nil {
-		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
-	}
-	if err := runtime.PopulateQueryParameters(&protoReq, req.Form, filter_SecretService_UpdateSecretKeyValue_0); err != nil {
-		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
-	}
-
 	msg, err := client.UpdateSecretKeyValue(ctx, &protoReq, grpc.Header(&metadata.HeaderMD), grpc.Trailer(&metadata.TrailerMD))
 	return msg, metadata, err
 
@@ -626,6 +623,14 @@ func local_request_SecretService_UpdateSecretKeyValue_0(ctx context.Context, mar
 	var protoReq UpdateSecretKeyValueRequest
 	var metadata runtime.ServerMetadata
 
+	newReader, berr := utilities.IOReaderFactory(req.Body)
+	if berr != nil {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", berr)
+	}
+	if err := marshaler.NewDecoder(newReader()).Decode(&protoReq.Secret); err != nil && err != io.EOF {
+		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
+	}
+
 	var (
 		val string
 		ok  bool
@@ -655,10 +660,6 @@ func local_request_SecretService_UpdateSecretKeyValue_0(ctx context.Context, mar
 		return nil, metadata, status.Errorf(codes.InvalidArgument, "type mismatch, parameter: %s, error: %v", "secret.name", err)
 	}
 
-	if err := runtime.PopulateQueryParameters(&protoReq, req.URL.Query(), filter_SecretService_UpdateSecretKeyValue_0); err != nil {
-		return nil, metadata, status.Errorf(codes.InvalidArgument, "%v", err)
-	}
-
 	msg, err := server.UpdateSecretKeyValue(ctx, &protoReq)
 	return msg, metadata, err
 
diff --git a/api/secret.swagger.json b/api/secret.swagger.json
index cfd4dbf..b4c787d 100644
--- a/api/secret.swagger.json
+++ b/api/secret.swagger.json
@@ -20,12 +20,6 @@
             "schema": {
               "$ref": "#/definitions/apiListSecretsResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -48,12 +42,6 @@
             "schema": {
               "properties": {}
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -86,12 +74,6 @@
             "schema": {
               "$ref": "#/definitions/apiSecret"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -120,12 +102,6 @@
             "schema": {
               "$ref": "#/definitions/apiDeleteSecretResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -156,12 +132,6 @@
             "schema": {
               "$ref": "#/definitions/apiSecretExistsResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -192,12 +162,6 @@
             "schema": {
               "$ref": "#/definitions/apiAddSecretKeyValueResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -234,12 +198,6 @@
             "schema": {
               "$ref": "#/definitions/apiUpdateSecretKeyValueResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -254,6 +212,14 @@
             "in": "path",
             "required": true,
             "type": "string"
+          },
+          {
+            "name": "body",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/apiSecret"
+            }
           }
         ],
         "tags": [
@@ -270,12 +236,6 @@
             "schema": {
               "$ref": "#/definitions/apiDeleteSecretKeyResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -378,39 +338,6 @@
           "format": "boolean"
         }
       }
-    },
-    "protobufAny": {
-      "type": "object",
-      "properties": {
-        "type_url": {
-          "type": "string"
-        },
-        "value": {
-          "type": "string",
-          "format": "byte"
-        }
-      }
-    },
-    "runtimeError": {
-      "type": "object",
-      "properties": {
-        "error": {
-          "type": "string"
-        },
-        "code": {
-          "type": "integer",
-          "format": "int32"
-        },
-        "message": {
-          "type": "string"
-        },
-        "details": {
-          "type": "array",
-          "items": {
-            "$ref": "#/definitions/protobufAny"
-          }
-        }
-      }
     }
   }
 }
diff --git a/api/workflow.pb.go b/api/workflow.pb.go
index fd9f8e3..6dbf5d2 100644
--- a/api/workflow.pb.go
+++ b/api/workflow.pb.go
@@ -853,11 +853,11 @@ var fileDescriptor_892c7f566756b0be = []byte{
 
 // Reference imports to suppress errors if they are not otherwise used.
 var _ context.Context
-var _ grpc.ClientConnInterface
+var _ grpc.ClientConn
 
 // This is a compile-time assertion to ensure that this generated file
 // is compatible with the grpc package it is being compiled against.
-const _ = grpc.SupportPackageIsVersion6
+const _ = grpc.SupportPackageIsVersion4
 
 // WorkflowServiceClient is the client API for WorkflowService service.
 //
@@ -882,10 +882,10 @@ type WorkflowServiceClient interface {
 }
 
 type workflowServiceClient struct {
-	cc grpc.ClientConnInterface
+	cc *grpc.ClientConn
 }
 
-func NewWorkflowServiceClient(cc grpc.ClientConnInterface) WorkflowServiceClient {
+func NewWorkflowServiceClient(cc *grpc.ClientConn) WorkflowServiceClient {
 	return &workflowServiceClient{cc}
 }
 
diff --git a/api/workflow.swagger.json b/api/workflow.swagger.json
index a7fd910..a70f3bc 100644
--- a/api/workflow.swagger.json
+++ b/api/workflow.swagger.json
@@ -20,12 +20,6 @@
             "schema": {
               "$ref": "#/definitions/apiListWorkflowTemplatesResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -48,12 +42,6 @@
             "schema": {
               "$ref": "#/definitions/apiWorkflowTemplate"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -86,12 +74,6 @@
             "schema": {
               "$ref": "#/definitions/apiWorkflowTemplate"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -129,12 +111,6 @@
             "schema": {
               "$ref": "#/definitions/apiArchiveWorkflowTemplateResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -165,12 +141,6 @@
             "schema": {
               "$ref": "#/definitions/apiListWorkflowTemplateVersionsResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -201,12 +171,6 @@
             "schema": {
               "$ref": "#/definitions/apiWorkflowTemplate"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -244,12 +208,6 @@
             "schema": {
               "$ref": "#/definitions/apiWorkflowTemplate"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -288,12 +246,6 @@
             "schema": {
               "$ref": "#/definitions/apiWorkflowTemplate"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -339,12 +291,6 @@
             "schema": {
               "$ref": "#/definitions/apiListWorkflowsResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -394,12 +340,6 @@
             "schema": {
               "$ref": "#/definitions/apiWorkflow"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -432,12 +372,6 @@
             "schema": {
               "$ref": "#/definitions/apiWorkflow"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -466,22 +400,7 @@
           "200": {
             "description": "A successful response.(streaming responses)",
             "schema": {
-              "type": "object",
-              "properties": {
-                "result": {
-                  "$ref": "#/definitions/apiLogEntry"
-                },
-                "error": {
-                  "$ref": "#/definitions/runtimeStreamError"
-                }
-              },
-              "title": "Stream result of apiLogEntry"
-            }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
+              "$ref": "#/x-stream-definitions/apiLogEntry"
             }
           }
         },
@@ -525,12 +444,6 @@
             "schema": {
               "$ref": "#/definitions/apiGetWorkflowMetricsResponse"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -567,12 +480,6 @@
             "schema": {
               "$ref": "#/definitions/apiWorkflow"
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -603,12 +510,6 @@
             "schema": {
               "properties": {}
             }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
-            }
           }
         },
         "parameters": [
@@ -637,22 +538,7 @@
           "200": {
             "description": "A successful response.(streaming responses)",
             "schema": {
-              "type": "object",
-              "properties": {
-                "result": {
-                  "$ref": "#/definitions/apiWorkflow"
-                },
-                "error": {
-                  "$ref": "#/definitions/runtimeStreamError"
-                }
-              },
-              "title": "Stream result of apiWorkflow"
-            }
-          },
-          "default": {
-            "description": "An unexpected error response",
-            "schema": {
-              "$ref": "#/definitions/runtimeError"
+              "$ref": "#/x-stream-definitions/apiWorkflow"
             }
           }
         },
@@ -866,27 +752,6 @@
         }
       }
     },
-    "runtimeError": {
-      "type": "object",
-      "properties": {
-        "error": {
-          "type": "string"
-        },
-        "code": {
-          "type": "integer",
-          "format": "int32"
-        },
-        "message": {
-          "type": "string"
-        },
-        "details": {
-          "type": "array",
-          "items": {
-            "$ref": "#/definitions/protobufAny"
-          }
-        }
-      }
-    },
     "runtimeStreamError": {
       "type": "object",
       "properties": {
@@ -912,5 +777,31 @@
         }
       }
     }
+  },
+  "x-stream-definitions": {
+    "apiLogEntry": {
+      "type": "object",
+      "properties": {
+        "result": {
+          "$ref": "#/definitions/apiLogEntry"
+        },
+        "error": {
+          "$ref": "#/definitions/runtimeStreamError"
+        }
+      },
+      "title": "Stream result of apiLogEntry"
+    },
+    "apiWorkflow": {
+      "type": "object",
+      "properties": {
+        "result": {
+          "$ref": "#/definitions/apiWorkflow"
+        },
+        "error": {
+          "$ref": "#/definitions/runtimeStreamError"
+        }
+      },
+      "title": "Stream result of apiWorkflow"
+    }
   }
 }
diff --git a/api/workflow_template.swagger.json b/api/workflow_template.swagger.json
index 715dd49..c161cb1 100644
--- a/api/workflow_template.swagger.json
+++ b/api/workflow_template.swagger.json
@@ -11,39 +11,5 @@
     "application/json"
   ],
   "paths": {},
-  "definitions": {
-    "protobufAny": {
-      "type": "object",
-      "properties": {
-        "type_url": {
-          "type": "string"
-        },
-        "value": {
-          "type": "string",
-          "format": "byte"
-        }
-      }
-    },
-    "runtimeError": {
-      "type": "object",
-      "properties": {
-        "error": {
-          "type": "string"
-        },
-        "code": {
-          "type": "integer",
-          "format": "int32"
-        },
-        "message": {
-          "type": "string"
-        },
-        "details": {
-          "type": "array",
-          "items": {
-            "$ref": "#/definitions/protobufAny"
-          }
-        }
-      }
-    }
-  }
+  "definitions": {}
 }