How to generate response like below in Laravel 5.8 - ajax

Question

This is the response which i'm getting if my ajax request ends up with validation errors...
{"readyState":4,"responseText":"{\"email\":[\"The email field is required.\"]}","responseJSON":{"email":["The email field is required."]},"status":422,"statusText":"Unprocessable Entity"}
Want to generate response in similar format, if request processed successfully.
Would appreciate detailed description.
Went through various answers already posted here, but none of them help me out.
Thanks :)

Answer 1

Since this is just a JSON and laravel supports JSON resonses out of the box the only thing you have to do is to return an array with your data:
Route::get("/test", function() {
$response = ["email" => ["The email field is required."]];
return [
"readyState" => 4,
"responseText" => json_encode($response),
"responseJSON" => $response,
"status" => 422,
"statusText" => "Unprocessable Entity"
];
});
Laravel returns every array as JSON and adds the Content-Type: application/json header to the HTTP request.
The example above gives you exactly your string: {"readyState":4,"responseText":"{\"email\":[\"The email field is required.\"]}","responseJSON":{"email":["The email field is required."]},"status":422,"statusText":"Unprocessable Entity"}
EDIT:
To set the status code you can use response()->json() like so:
Route::get("/test", function() {
$response = ["email" => ["The email field is required."]];
return response()->json($response, 422);
});
response() returns an instance of Illuminate\Routing\ResponseFactory so you can lookup the possible parameters: function json($data = [], $status = 200, array $headers = [], $options = 0)