From 4c37865365d96efdfac451fe4ac7445de81b3169 Mon Sep 17 00:00:00 2001
From: Prashant Pant <prashantpant@google.com>
Date: Thu, 29 Feb 2024 09:06:13 +0000
Subject: [PATCH] Update generichost/api.mustache & httpclient/api.mustache to
 autoset singleton enums values.

---
 .../csharp/libraries/generichost/api.mustache  | 18 ++++++++++++++++++
 .../csharp/libraries/httpclient/api.mustache   | 18 ++++++++++++++++++
 2 files changed, 36 insertions(+)

diff --git a/modules/openapi-generator/src/main/resources/csharp/libraries/generichost/api.mustache b/modules/openapi-generator/src/main/resources/csharp/libraries/generichost/api.mustache
index 337f0f32598cc..21790f1eb77ed 100644
--- a/modules/openapi-generator/src/main/resources/csharp/libraries/generichost/api.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp/libraries/generichost/api.mustache
@@ -390,6 +390,12 @@ namespace {{packageName}}.{{apiPackage}}
                     uriBuilderLocalVar.Path = urlLocalVar.AbsolutePath;
                     {{/-first}}
                     {{/servers}}
+                    {{#constantParams}}
+                    {{#isPathParam}}
+                    // Set client side default value of Path Param "{{baseName}}".
+                    uriBuilderLocalVar.Path = uriBuilderLocalVar.Path.Replace("%7B{{baseName}}%7D", Uri.EscapeDataString({{#_enum}}"{{{.}}}"{{/_enum}}.ToString())); // Constant path parameter
+                    {{/isPathParam}}
+                    {{/constantParams}}
                     {{#pathParams}}
                     uriBuilderLocalVar.Path = uriBuilderLocalVar.Path.Replace("%7B{{baseName}}%7D", Uri.EscapeDataString({{paramName}}.ToString()));
                     {{#-last}}
@@ -423,6 +429,12 @@ namespace {{packageName}}.{{apiPackage}}
                     {{/required}}
                     {{/queryParams}}
 
+                    {{#constantParams}}
+                    {{#isQueryParam}}
+                    // Set client side default value of Query Param "{{baseName}}".
+                    parseQueryStringLocalVar["{{baseName}}"] = ClientUtils.ParameterToString({{#_enum}}"{{{.}}}"{{/_enum}}); // Constant query parameter
+                    {{/isQueryParam}}
+                    {{/constantParams}}
                     {{#queryParams}}
                     {{^required}}
                     if ({{paramName}}.IsSet)
@@ -434,6 +446,12 @@ namespace {{packageName}}.{{apiPackage}}
 
                     {{/-last}}
                     {{/queryParams}}
+                    {#constantParams}}
+                    {{#isHeaderParam}}
+                    // Set client side default value of Header Param "{{baseName}}".
+                    httpRequestMessageLocalVar.Headers.Add("{{baseName}}", ClientUtils.ParameterToString({{#_enum}}"{{{.}}}"{{/_enum}})); // Constant header parameter
+                    {{/isHeaderParam}}
+                    {{/constantParams}}
                     {{#headerParams}}
                     {{#required}}
                     httpRequestMessageLocalVar.Headers.Add("{{baseName}}", ClientUtils.ParameterToString({{paramName}}));
diff --git a/modules/openapi-generator/src/main/resources/csharp/libraries/httpclient/api.mustache b/modules/openapi-generator/src/main/resources/csharp/libraries/httpclient/api.mustache
index c0d49570a620e..22c8fd0c3f8e7 100644
--- a/modules/openapi-generator/src/main/resources/csharp/libraries/httpclient/api.mustache
+++ b/modules/openapi-generator/src/main/resources/csharp/libraries/httpclient/api.mustache
@@ -605,6 +605,12 @@ namespace {{packageName}}.{{apiPackage}}
             var localVarAccept = {{packageName}}.Client.ClientUtils.SelectHeaderAccept(_accepts);
             if (localVarAccept != null) localVarRequestOptions.HeaderParameters.Add("Accept", localVarAccept);
 
+            {{#constantParams}}
+            {{#isPathParam}}
+            // Set client side default value of Path Param "{{baseName}}".
+            localVarRequestOptions.PathParameters.Add("{{baseName}}", {{packageName}}.Client.ClientUtils.ParameterToString({{#_enum}}"{{{.}}}"{{/_enum}})); // Constant path parameter
+            {{/isPathParam}}
+            {{/constantParams}}
             {{#pathParams}}
             {{#required}}
             localVarRequestOptions.PathParameters.Add("{{baseName}}", {{packageName}}.Client.ClientUtils.ParameterToString({{paramName}})); // path parameter
@@ -616,6 +622,12 @@ namespace {{packageName}}.{{apiPackage}}
             }
             {{/required}}
             {{/pathParams}}
+            {{#constantParams}}
+            {{#isQueryParam}}
+            // Set client side default value of Query Param "{{baseName}}".
+            localVarRequestOptions.QueryParameters.Add("{{baseName}}", {{packageName}}.Client.ClientUtils.ParameterToString({{#_enum}}"{{{.}}}"{{/_enum}})); // Constant query parameter
+            {{/isQueryParam}}
+            {{/constantParams}}            
             {{#queryParams}}
             {{#required}}
             localVarRequestOptions.QueryParameters.Add({{packageName}}.Client.ClientUtils.ParameterToMultiMap("{{collectionFormat}}", "{{baseName}}", {{paramName}}));
@@ -627,6 +639,12 @@ namespace {{packageName}}.{{apiPackage}}
             }
             {{/required}}
             {{/queryParams}}
+            {{#constantParams}}
+            {{#isHeaderParam}}
+            // Set client side default value of Header Param "{{baseName}}".
+            localVarRequestOptions.HeaderParameters.Add("{{baseName}}", {{packageName}}.Client.ClientUtils.ParameterToString({{#_enum}}"{{{.}}}"{{/_enum}})); // Constant header parameter
+            {{/isHeaderParam}}
+            {{/constantParams}}
             {{#headerParams}}
             {{#required}}
             localVarRequestOptions.HeaderParameters.Add("{{baseName}}", {{packageName}}.Client.ClientUtils.ParameterToString({{paramName}})); // header parameter