How to get data passed from PUT method
Stefan Bogdanescu
Founder & Senior Architect · 2026-06-29
# How to Get Data Passed from the PUT Method in Laravel APIs
As developers building RESTful APIs with Laravel, handling incoming data via HTTP methods like `PUT` or `PATCH` is fundamental. When you send an update request, the core challenge often lies not in sending the data, but in correctly parsing and accessing that data within your controller. If you are encountering empty arrays when expecting updated information from a `PUT` request, it usually points to a misunderstanding of how Laravel maps incoming HTTP payloads to the `$request` object.
This guide will walk you through the proper, robust way to receive and process data passed through `PUT` requests in your Laravel application.
## Understanding the Request Payload
When a client sends data to your endpoint using `PUT`, that data is delivered in the request body. The format in which this data arrives (JSON, form-data, XML) dictates how you must retrieve it from the `$request` object. For modern APIs, **JSON** is the overwhelmingly preferred method for transferring structured data.
If you are sending JSON data, Laravel automatically decodes it into a PHP object accessible through methods like `json()`, `input()`, or by casting the request itself. Simply using `$request->all()` can sometimes be ambiguous depending on how the client formatted the payload.
## The Correct Way to Access PUT Data
For updating resources, you need explicit control over which fields are being sent and ensure that the data is correctly cast into usable PHP variables.
### 1. Using `json()` for JSON Payloads (Recommended)
If your Postman request sends a JSON body (e.g., `{ "name": "New Name", "status": "active" }`), you should use the `json()` method to parse it directly into a PHP associative array:
```php
use Illuminate\Http\Request;
public function update(Request $request, $id)
{
// Attempt to get the JSON payload and decode it into an array
$data = $request->json()->all();
if (empty($data)) {
return response()->json(['error' => 'No data received'], 400);
}
// Now you can safely access the fields
$name = $data['name'] ?? null;
$status = $data['status'] ?? null;
// Proceed with database update logic...
// VehicleType::findOrFail($id)->update(['name' => $name, 'status' => $status]);
return response()->json(['message' => 'Vehicle type updated successfully']);
}
```
### 2. Using `input()` for Form-Data Payloads
If your client is sending the data as traditional form-data (e.g., using `application/x-www-form-urlencoded` or `multipart/form-data`), you can rely on the standard `input()` method:
```php
public function update(Request $request, $id)
{
// Accessing form data sent via PUT
$name = $request->input('name');
$status = $request->input('status');
// ... database logic
}
```
### Best Practice: Validation and Mass Assignment
A senior developer always advocates for validation when handling updates. Never trust the incoming data implicitly. Always validate what you receive before attempting to save it to the database. Furthermore, ensure you are using Eloquent's mass assignment protection correctly by defining your `$fillable` attributes in your model. This prevents security vulnerabilities and makes your code cleaner, aligning with best practices promoted by Laravel documentation on Eloquent relationships and data handling.
## Conclusion
The confusion surrounding empty arrays when processing `PUT` requests stems from the ambiguity of how different clients format their payloads. By explicitly checking whether you expect JSON or form-data, and by using the appropriate methods—primarily `$request->json()->all()` for API interactions—you gain full control over your data flow. Always prioritize validation to ensure that only clean, expected data makes it into your business logic. Mastering these input handling techniques is a cornerstone of building reliable APIs in Laravel.