Update withBody method to accept array as parameter

README.md

@@ -220,7 +220,7 @@ FetchPHP’s fluent API provides the following methods for building requests:
 $response = fetch()
     ->baseUri('https://example.com')
     ->withHeaders(['Content-Type' => 'application/json'])
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->withToken('fake-bearer-auth-token')
     ->post('/posts');
 
@@ -240,7 +240,7 @@ $data = null;
 async(fn () => fetch()
     ->baseUri('https://example.com')
     ->withHeaders(['Content-Type' => 'application/json'])
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->withToken('fake-bearer-auth-token')
     ->post('/posts'))
     ->then(fn (ResponseInterface $response) => $data = $response->json())  // Success handler

docs/api/client-handler.md

@@ -84,12 +84,12 @@ Sets the headers for the request.
 ### **`withBody()`**
 
 ```php
-public function withBody(mixed $body): self
+public function withBody(array $body): self
 ```
 
 Sets the request body.
 
-- **`$body`**: The content of the body, which could be a string, array (for JSON), or other data.
+- **`$body`**: The content of the body, which should be an array as key-value pairs and will be encoded as JSON.
 
 **Returns**: The `ClientHandler` instance for chaining.
 

docs/api/fetch.md

@@ -92,7 +92,7 @@ echo $data['key'];
 $response = fetch()
     ->baseUri('https://example.com')
     ->withHeaders('Content-Type', 'application/json')
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->withToken('fake-bearer-auth-token')
     ->post('/posts');
 

docs/guide/async-requests.md

@@ -48,7 +48,7 @@ $data = null;
 async(fn () => fetch()
     ->baseUri('https://example.com')
     ->withHeaders('Content-Type', 'application/json')
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->withToken('fake-bearer-auth-token')
     ->post('/posts'))
     ->then(fn (ResponseInterface $response) => $data = $response->json())  // Success handler
@@ -133,7 +133,7 @@ $data = null;
 async(fn () => fetch()
     ->baseUri('https://example.com')
     ->withHeaders('Content-Type', 'application/json')
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->retry(3, 1000)  // Retry 3 times with a 1-second delay between retries
     ->post('/posts'))
     ->then(fn (ResponseInterface $response) => $data = $response->json())  // Success handler

docs/guide/error-handling.md

@@ -122,7 +122,7 @@ $error = null;
 async(fn () => fetch()
     ->baseUri('https://example.com')
     ->withHeaders('Content-Type', 'application/json')
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->retry(3, 1000)  // Retry 3 times with a 1-second delay between retries
     ->post('/posts'))
     ->then(fn (ResponseInterface $response) => $data = $response->json())  // Success handler

docs/guide/getting-started.md

@@ -70,7 +70,7 @@ FetchPHP’s fluent API allows you to chain methods to build and send HTTP reque
 $response = fetch()
     ->baseUri('https://example.com')
     ->withHeaders('Content-Type', 'application/json')
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->withToken('fake-bearer-auth-token')
     ->post('/posts');
 
@@ -93,7 +93,7 @@ $data = null;
 async(fn () => fetch()
     ->baseUri('https://example.com')
     ->withHeaders('Content-Type', 'application/json')
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->withToken('fake-bearer-auth-token')
     ->post('/posts'))
     ->then(fn (ResponseInterface $response) => $data = $response->json())  // Success handler

docs/guide/sync-requests.md

@@ -44,7 +44,7 @@ The Fluent API in FetchPHP allows for more flexible request building by chaining
 $response = fetch()
     ->baseUri('https://example.com')
     ->withHeaders('Content-Type', 'application/json')
-    ->withBody(json_encode(['key' => 'value']))
+    ->withBody(['key' => 'value'])
     ->withToken('fake-bearer-auth-token')
     ->post('/posts');
 

src/Fetch/Http/ClientHandler.php

@@ -349,13 +349,13 @@ public function withHeaders(array $headers): self
     /**
      * Set the body for the request.
      *
-     * @param mixed $body
+     * @param array $body
      *
      * @return self
      */
-    public function withBody(mixed $body): self
+    public function withBody(array $body): self
     {
-        $this->options['body'] = $body;
+        $this->options['body'] = json_encode($body);
 
         return $this;
     }

src/Fetch/Interfaces/ClientHandler.php

@@ -30,11 +30,11 @@ public function withHeaders(array $headers): self;
     /**
      * Set the body for the request.
      *
-     * @param mixed $body
+     * @param array $body
      *
      * @return self
      */
-    public function withBody(mixed $body): self;
+    public function withBody(array $body): self;
 
     /**
      * Set the query parameters for the request.

tests/Unit/ClientHandlerTest.php

@@ -86,7 +86,7 @@
     $response = $clientHandler->setSyncClient($mockClient)
         ->baseUri('http://localhost')
         ->withHeaders(['Content-Type' => 'application/json'])
-        ->withBody(json_encode(['key' => 'value']))
+        ->withBody(['key' => 'value'])
         ->withToken('fake-bearer-auth-token')
         ->post('/posts');
 

tests/Unit/FetchTest.php

@@ -60,7 +60,7 @@
         ->setSyncClient($mockClient) // Set the mock client
         ->baseUri('http://localhost')
         ->withHeaders(['Content-Type' => 'application/json'])
-        ->withBody(json_encode(['key' => 'value']))
+        ->withBody(['key' => 'value'])
         ->withToken('fake-bearer-auth-token')
         ->post('/posts');