feat: sort params in creation. In this manner, the params order is the ever same

go.mod

@@ -6,5 +6,6 @@ require (
 	github.com/alecthomas/jsonschema v0.0.0-20200530073317-71f438968921
 	github.com/getkin/kin-openapi v0.22.1
 	github.com/gorilla/mux v1.8.0
+	github.com/iancoleman/orderedmap v0.1.0 // indirect
 	github.com/stretchr/testify v1.6.1
 )

go.sum

@@ -24,6 +24,8 @@ github.com/gorilla/mux v1.8.0 h1:i40aqfkR1h2SlN9hojwV5ZA91wcXFOvkdNIeFDP5koI=
 github.com/gorilla/mux v1.8.0/go.mod h1:DVbg23sWSpFRCP0SfiEN6jmj59UnW/n46BH5rLB71So=
 github.com/iancoleman/orderedmap v0.0.0-20190318233801-ac98e3ecb4b0 h1:i462o439ZjprVSFSZLZxcsoAe592sZB1rci2Z8j4wdk=
 github.com/iancoleman/orderedmap v0.0.0-20190318233801-ac98e3ecb4b0/go.mod h1:N0Wam8K1arqPXNWjMo21EXnBPOPp36vB07FNRdD2geA=
+github.com/iancoleman/orderedmap v0.1.0 h1:2orAxZBJsvimgEBmMWfXaFlzSG2fbQil5qzP3F6cCkg=
+github.com/iancoleman/orderedmap v0.1.0/go.mod h1:N0Wam8K1arqPXNWjMo21EXnBPOPp36vB07FNRdD2geA=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=

router.go

@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 	"net/http"
+	"sort"
 
 	"github.com/alecthomas/jsonschema"
 	"github.com/getkin/kin-openapi/openapi3"
@@ -218,17 +219,24 @@ func (r Router) resolveResponsesSchema(responses map[int]SchemaValue, operation
 }
 
 func (r Router) resolveParameterSchema(paramType string, paramConfig map[string]SchemaValue, operation *openapi3.Operation) error {
-	for k, v := range paramConfig {
+	var keys = make([]string, 0, len(paramConfig))
+	for k := range paramConfig {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+
+	for _, key := range keys {
+		v := paramConfig[key]
 		var param *openapi3.Parameter
 		switch paramType {
 		case "path":
-			param = openapi3.NewPathParameter(k)
+			param = openapi3.NewPathParameter(key)
 		case "query":
-			param = openapi3.NewQueryParameter(k)
+			param = openapi3.NewQueryParameter(key)
 		case "headers":
-			param = openapi3.NewHeaderParameter(k)
+			param = openapi3.NewHeaderParameter(key)
 		case "cookie":
-			param = openapi3.NewCookieParameter(k)
+			param = openapi3.NewCookieParameter(key)
 		}
 
 		if v.Content != nil {

testdata/cookies.json

@@ -9,6 +9,13 @@
     "/projects": {
       "get": {
         "parameters": [
+          {
+            "in": "cookie",
+            "name": "csrftoken",
+            "schema": {
+              "type": "string"
+            }
+          },
           {
             "description": "boolean. Set 0 to disable and 1 to enable",
             "in": "cookie",
@@ -16,13 +23,6 @@
             "schema": {
               "type": "integer"
             }
-          },
-          {
-            "in": "cookie",
-            "name": "csrftoken",
-            "schema": {
-              "type": "string"
-            }
           }
         ],
         "responses": {

testdata/headers.json

@@ -10,16 +10,16 @@
       "get": {
         "parameters": [
           {
-            "description": "foo description",
             "in": "header",
-            "name": "foo",
+            "name": "bar",
             "schema": {
               "type": "string"
             }
           },
           {
+            "description": "foo description",
             "in": "header",
-            "name": "bar",
+            "name": "foo",
             "schema": {
               "type": "string"
             }