First, let's assume we have the following routes defined in our method accepts an incoming HTTP request and a set of validation rules.If the validation rules pass, your code will keep executing normally; however, if validation fails, an exception will be thrown and the proper error response will automatically be sent back to the user.trait which provides a convenient method to validate incoming HTTP request with a variety of powerful validation rules.To learn about Laravel's powerful validation features, let's look at a complete example of validating a form and displaying the error messages back to the user.Form requests are custom request classes that contain validation logic.As mentioned previously, Laravel will automatically redirect the user back to their previous location.In addition, all of the validation errors will automatically be flashed to the session.This JSON response will be sent with a 422 HTTP status code.
In the case of a traditional HTTP request, a redirect response will be generated, while a JSON response will be sent for AJAX requests. Again, if the validation fails, the proper response will automatically be generated.
If the validation passes, our controller will continue executing normally.
Sometimes you may wish to stop running validation rules on an attribute after the first validation failure.
To do so, assign the So, what if the incoming request parameters do not pass the given validation rules?
Again, notice that we did not have to explicitly bind the error messages to the view in our method during an AJAX request, Laravel will not generate a redirect response.Instead, Laravel generates a JSON response containing all of the validation errors.