Swagger: Default response's key is now 200.

While the spec does not seem to dictate this, most of the
examples seem to have HTTP status codes as the keys. This
patch replaces the text 'default' with value of '200'.

Author: ivucica

examples/examplepb/echo_service.swagger.json

@@ -28,7 +28,7 @@
         "description": "The message posted as the id parameter will also be\nreturned.",
         "operationId": "Echo",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbSimpleMessage"
@@ -58,7 +58,7 @@
         "summary": "EchoBody method receives a simple message and returns it.",
         "operationId": "EchoBody",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbSimpleMessage"

examples/examplepb/streamless_everything.swagger.json

@@ -19,7 +19,7 @@
       "get": {
         "operationId": "List",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbABitOfEverything"
@@ -33,7 +33,7 @@
       "post": {
         "operationId": "CreateBody",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbABitOfEverything"
@@ -59,7 +59,7 @@
       "post": {
         "operationId": "BulkCreate",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbEmptyMessage"
@@ -85,7 +85,7 @@
       "post": {
         "operationId": "BulkEcho",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/subStringMessage"
@@ -111,7 +111,7 @@
       "get": {
         "operationId": "Echo",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/subStringMessage"
@@ -136,7 +136,7 @@
       "post": {
         "operationId": "Create",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbABitOfEverything"
@@ -252,7 +252,7 @@
       "get": {
         "operationId": "Lookup",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbABitOfEverything"
@@ -275,7 +275,7 @@
       "delete": {
         "operationId": "Delete",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbEmptyMessage"
@@ -298,7 +298,7 @@
       "put": {
         "operationId": "Update",
         "responses": {
-          "default": {
+          "200": {
             "description": "Description",
             "schema": {
               "$ref": "#/definitions/examplepbEmptyMessage"

protoc-gen-swagger/genswagger/template.go

@@ -456,7 +456,7 @@ func renderServices(services []*descriptor.Service, paths swaggerPathsObject, re
 					OperationId: fmt.Sprintf("%s", meth.GetName()),
 					Parameters:  parameters,
 					Responses: swaggerResponsesObject{
-						"default": swaggerResponseObject{
+						"200": swaggerResponseObject{
 							Description: "Description",
 							Schema: swaggerSchemaObject{
 								Ref: fmt.Sprintf("#/definitions/%s", fullyQualifiedNameToSwaggerName(meth.ResponseType.FQMN(), reg)),