From cc30bdbe5718d99101fbdda4fd2d5b0011934641 Mon Sep 17 00:00:00 2001
From: Markus Machatschek <markus.machatschek@hey.com>
Date: Wed, 27 May 2026 14:24:24 +0200
Subject: [PATCH 1/2] feat: add BadRequestException as additional
 ClientException class

---
 .../Request/Statuses/BadRequestException.php         | 12 ++++++++++++
 src/Helpers/RequestExceptionHelper.php               |  2 ++
 2 files changed, 14 insertions(+)
 create mode 100644 src/Exceptions/Request/Statuses/BadRequestException.php

diff --git a/src/Exceptions/Request/Statuses/BadRequestException.php b/src/Exceptions/Request/Statuses/BadRequestException.php
new file mode 100644
index 00000000..5048ade7
--- /dev/null
+++ b/src/Exceptions/Request/Statuses/BadRequestException.php
@@ -0,0 +1,12 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Saloon\Exceptions\Request\Statuses;
+
+use Saloon\Exceptions\Request\ClientException;
+
+class BadRequestException extends ClientException
+{
+    //
+}
diff --git a/src/Helpers/RequestExceptionHelper.php b/src/Helpers/RequestExceptionHelper.php
index 38f33b6a..3f937aaf 100644
--- a/src/Helpers/RequestExceptionHelper.php
+++ b/src/Helpers/RequestExceptionHelper.php
@@ -9,6 +9,7 @@
 use Saloon\Exceptions\Request\ClientException;
 use Saloon\Exceptions\Request\ServerException;
 use Saloon\Exceptions\Request\RequestException;
+use Saloon\Exceptions\Request\Statuses\BadRequestException;
 use Saloon\Exceptions\Request\Statuses\NotFoundException;
 use Saloon\Exceptions\Request\Statuses\ForbiddenException;
 use Saloon\Exceptions\Request\Statuses\UnauthorizedException;
@@ -32,6 +33,7 @@ public static function create(Response $response, ?Throwable $previous = null):
 
         $requestException = match (true) {
             // Built-in exceptions
+            $status === 400 => BadRequestException::class,
             $status === 401 => UnauthorizedException::class,
             $status === 402 => PaymentRequiredException::class,
             $status === 403 => ForbiddenException::class,

From ba6bbb61f8412cce342223dee29d4b5cd099d176 Mon Sep 17 00:00:00 2001
From: Markus Machatschek <markus.machatschek@hey.com>
Date: Sat, 30 May 2026 19:27:26 +0200
Subject: [PATCH 2/2] tests: add testcase for BadRequest to dataset

---
 tests/Unit/RequestExceptionTest.php | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tests/Unit/RequestExceptionTest.php b/tests/Unit/RequestExceptionTest.php
index db4d2b40..66ae9ba7 100644
--- a/tests/Unit/RequestExceptionTest.php
+++ b/tests/Unit/RequestExceptionTest.php
@@ -12,6 +12,7 @@
 use Saloon\Exceptions\Request\Statuses\NotFoundException;
 use Saloon\Exceptions\Request\Statuses\ForbiddenException;
 use Saloon\Tests\Fixtures\Requests\AlwaysHasFailureRequest;
+use Saloon\Exceptions\Request\Statuses\BadRequestException;
 use Saloon\Exceptions\Request\Statuses\UnauthorizedException;
 use Saloon\Exceptions\Request\Statuses\GatewayTimeoutException;
 use Saloon\Exceptions\Request\Statuses\RequestTimeOutException;
@@ -35,6 +36,7 @@
     expect($exception)->toBeInstanceOf($expectedException);
     expect($exception->getMessage())->toEqual($message);
 })->with([
+    [400, BadRequestException::class],
     [401, UnauthorizedException::class],
     [402, PaymentRequiredException::class],
     [403, ForbiddenException::class],