From 860fd26449e5e0786ab8cc67ac83af914aa606c2 Mon Sep 17 00:00:00 2001
From: Benedikt Radtke <Trolldemorted@users.noreply.github.com>
Date: Tue, 2 Jul 2024 11:20:29 +0200
Subject: [PATCH] Fix x-www-form-urlencoded date-time string parameters
 (#18898)

As mentioned in #13841, date-time parameters in request bodies are not ISO formatted, which breaks with certain webservers. This commit invokes `toISOString()` for date-time body parameters like it is done for queryParameters.

Fixes #13841.
---
 .../src/main/resources/typescript-fetch/apis.mustache        | 5 +++++
 .../typescript-fetch/builds/default-v3.0/apis/FakeApi.ts     | 2 +-
 .../builds/snakecase-discriminator/apis/FakeApi.ts           | 2 +-
 3 files changed, 7 insertions(+), 2 deletions(-)

diff --git a/modules/openapi-generator/src/main/resources/typescript-fetch/apis.mustache b/modules/openapi-generator/src/main/resources/typescript-fetch/apis.mustache
index 83b36941422..fef5aff07b0 100644
--- a/modules/openapi-generator/src/main/resources/typescript-fetch/apis.mustache
+++ b/modules/openapi-generator/src/main/resources/typescript-fetch/apis.mustache
@@ -252,6 +252,10 @@ export class {{classname}} extends runtime.BaseAPI {
         {{/isArray}}
         {{^isArray}}
         if (requestParameters['{{paramName}}'] != null) {
+            {{#isDateTimeType}}
+            formParams.append('{{baseName}}', (requestParameters['{{paramName}}'] as any).toISOString());
+            {{/isDateTimeType}}
+            {{^isDateTimeType}}
             {{#isPrimitiveType}}
             formParams.append('{{baseName}}', requestParameters['{{paramName}}'] as any);
             {{/isPrimitiveType}}
@@ -262,6 +266,7 @@ export class {{classname}} extends runtime.BaseAPI {
             formParams.append('{{baseName}}', new Blob([JSON.stringify(requestParameters['{{paramName}}'])], { type: "application/json", }));
             {{/withoutRuntimeChecks}}
             {{/isPrimitiveType}}
+            {{/isDateTimeType}}
         }
 
         {{/isArray}}
diff --git a/samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/FakeApi.ts b/samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/FakeApi.ts
index 484c15265f5..12df4e51387 100644
--- a/samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/FakeApi.ts
+++ b/samples/client/petstore/typescript-fetch/builds/default-v3.0/apis/FakeApi.ts
@@ -722,7 +722,7 @@ export class FakeApi extends runtime.BaseAPI {
         }
 
         if (requestParameters['dateTime'] != null) {
-            formParams.append('dateTime', requestParameters['dateTime'] as any);
+            formParams.append('dateTime', (requestParameters['dateTime'] as any).toISOString());
         }
 
         if (requestParameters['password'] != null) {
diff --git a/samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/apis/FakeApi.ts b/samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/apis/FakeApi.ts
index dd1a525ac39..23e46bbf742 100644
--- a/samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/apis/FakeApi.ts
+++ b/samples/client/petstore/typescript-fetch/builds/snakecase-discriminator/apis/FakeApi.ts
@@ -663,7 +663,7 @@ export class FakeApi extends runtime.BaseAPI {
         }
 
         if (requestParameters['dateTime'] != null) {
-            formParams.append('dateTime', requestParameters['dateTime'] as any);
+            formParams.append('dateTime', (requestParameters['dateTime'] as any).toISOString());
         }
 
         if (requestParameters['password'] != null) {