Customise number of links shown in Laravel pagination on query results - php

I'm using Laravel's Pagination feature on my query in my application that's returned as a JSON response back to my front-end (it's a Laravel Rest API)
/**
* Applications
*/
public function getApplications()
{
$applications = Application::orderBy('created_at', 'desc')
->paginate(25);
foreach ($applications as $key => $applicant) {
try {
$applications[$key]['data'] = json_decode($applicant['data']);
} catch (\Exception $e) { }
}
return $applications;
}
/**
* All applications
*
* #param Request $request
*/
public function applications(Request $request)
{
try {
// daily graphs
$applications = $this->getApplications();
// not set or nothing to report
if (!$applications) {
return response()->json([
'success' => false,
'msg' => 'No applications found, check back in a few minutes',
], 422);
}
// return the response
return response()->json([
'success' => true,
'msg' => 'Icicle applications',
'applications' => $applications ?? null
], 200);
} catch (\Exception $e) {
// return default template
return response()->json([
'success' => false,
'msg' => 'We were unable to load applications right now',
], 422);
}
}
However, the default number of links shown on the page start at 1, and proceed to 10 which is too many for me and I'd like to reduce them down to show fewer links, for example, 1 through to 5.
I can't seem to find any documentation on how to configure the paginator here, and since it's not a view, how can I reduce the links down? Am I missing some configuration?

The documentation suggests doing this inside your blade template:
{{ $users->onEachSide(5)->links() }}
/**
* Applications
*/
public function getApplications()
{
$paginator = Application::orderBy('created_at', 'desc')
->paginate(25);
return array_merge($paginator, [
'pages' => $paginator->getUrlRange(1, 10)
]);
}

Related

Unable to retrieve a one to one polymorphic relationship

I have a pretty complex Laravel application who creates a one to one polymorphic relationship in a middleware if it does not exists. The fact is that I am unable to retrieve the relationship in the same request (create in middleware, then pass it and retrieve it), I have an error 500 when I try to do this. BUT, if I a make an other request I can retrieve it... When I look into my database, I have the userable_id and type defined, I have no idea where this can probably occur.
My middleware look like this:
public function handle(Request $request, Closure $next): mixed
{
if (!Storage::disk('cecurity')->exists(config('coffre_fort.ssl_certificate.name')) ||
!config('coffre_fort.reverse_proxy.username') ||
!config('coffre_fort.reverse_proxy.password') ||
!config('coffre_fort.encryption_key')) {
return response()->json([
'error' => 'Cecurity is not configured correctly.',
], 500);
} elseif (!Auth::user()) {
return response()->json([
'error' => 'You are not authenticated.',
], 401);
}
if (!Auth::user()->cecurityAccount) {
try {
$userType = Auth::user()::class;
/** #phpstan-ignore-next-line */
if ($userType == "App\Models\Admin") {
$this->cecurityRepository->createAdminUser(Auth::user());
} else {
// It enter in this function for creating relationship
$this->cecurityRepository->createFullCustomer(Auth::user());
}
} catch (Exception $e) {
return response()->json([
'error' => $e->getMessage(),
], 500);
}
} elseif (!$this->cecurityRepository->checkConnection()) {
$this->cecurityRepository->connect(
Auth::user()->cecurityAccount->cecurity_user_id,
openssl_decrypt(
Auth::user()->cecurityAccount->password,
'AES-256-CBC',
config('coffre_fort.encryption_key'),
0,
(int) Auth::user()->cecurityAccount->encryption_iv
),
Auth::user()->cecurityAccount->coffre_id
);
}
return $next($request);
}
Then it creates the relationship as this (in the createFulCustomer() function):
$user = new Cecurity;
$user->userable_id = $customer->id_customer;
$user->userable_type = Customer::class;
And then pass the middleware to go to listFiles() function in a controller:
public function listFiles(ListFilesRequest $request): mixed
{
try {
return $this->cecurityRepository->listFiles(
$request->get('nbRowByPage'),
$request->get('pageIndex'),
);
} catch (\Exception $e) {
return response()->json([
'message' => $e->getMessage()
], 500);
}
}
Just after the middleware has passed, my database is completed (Cecurity table related):

Symfony 5.4 - how to filter/sanitize/validate request parameter in Rest API action

I am fairly new to Symfony 5.4 and recently created my first API using that version
For my specific API endpoint one of the parameters is an array of IDs.
I need to validate this array in the following way:
make sure that this IS an array;
make sure that IDs in the array actually refer to database records;
I implemented it in a straightforward way where I check the array before persisting the entity using typecasting and existing Repository:
$parentPropertyIds = (array)$request->request->get('parent_property_ids');
if ($parentPropertyIds) {
$parentCount = $doctrine->getRepository(Property::class)->countByIds($parentPropertyIds);
if ($parentCount !== count($parentPropertyIds)) {
return $this->json([
'status' => 'error',
'message' => 'parent_property_id_invalid'
], 422);
}
foreach ($parentPropertyIds as $parentPropertyId) {
$parentProperty = $doctrine->getRepository(Property::class)->find($parentPropertyId);
$property->addParent($parentProperty);
}
}
However, this makes my controller action become too "body-positive" and also feels like something that could be implemented in a more elegant way.
I was unable to find anything in Symfony 5.4 docs.
At the moment I am wondering if:
there is a way to filter/sanitize request parameter available in Symfony;
there is an elegant built-in way to apply custom validator constraint to a request param (similar to well-documented entity field validation);
Full endpoint code:
/**
* #Route("/property", name="property_new", methods={"POST"})
*/
public function create(ManagerRegistry $doctrine, Request $request, ValidatorInterface $validator): Response
{
$entityManager = $doctrine->getManager();
$property = new Property();
$property->setName($request->request->get('name'));
$property->setCanBeShared((bool)$request->request->get('can_be_shared'));
$parentPropertyIds = (array)$request->request->get('parent_property_ids');
if ($parentPropertyIds) {
$parentCount = $doctrine
->getRepository(Property::class)
->countByIds($parentPropertyIds);
if ($parentCount !== count($parentPropertyIds)) {
return $this->json([
'status' => 'error',
'message' => 'parent_property_id_invalid'
], 422);
}
foreach ($parentPropertyIds as $parentPropertyId) {
$parentProperty = $doctrine->getRepository(Property::class)->find($parentPropertyId);
$property->addParent($parentProperty);
}
}
$errors = $validator->validate($property);
if (count($errors) > 0) {
$messages = [];
foreach ($errors as $violation) {
$messages[$violation->getPropertyPath()][] = $violation->getMessage();
}
return $this->json([
'status' => 'error',
'messages' => $messages
], 422);
}
$entityManager->persist($property);
$entityManager->flush();
return $this->json([
'status' => 'ok',
'id' => $property->getId()
]);
}
You could use a combination of Data Transfer Object (DTO) with Validation service. There is a number of predefined constraints or you could create a custom one.
For expamle, how to use simple constraint as an annotation:
class PropertyDTO {
/**
* #Assert\NotBlank
*/
public string $name = "";
public bool $shared = false;
}
Then assign data to DTO:
$propertyData = new PropertyDTO();
$propertyData->name = $request->request->get('name');
...
In some cases it is a good idea to define a constructor in the DTO, then get all data from the request and pass it to DTO at once:
$data = $request->getContent(); // or $request->getArray(); depends on your content type
$propertyData = new PropertyDTO($data);
Then validate it:
$errors = $validator->validate($propertyData);
if (count($errors) > 0) {
/*
* Uses a __toString method on the $errors variable which is a
* ConstraintViolationList object. This gives us a nice string
* for debugging.
*/
$errorsString = (string) $errors;
return $this->json([
'status' => 'error',
'message' => 'parent_property_id_invalid'
], 422);
}
//...

Laravel - find info in db using request parameter

I am building a API using laravel, and i am trying to create a function to find a user in data base using a email as a parameter
public function find_user(Request $request){
try{
$user = UserAccess::table('user_accesses')->where('email', $request->email)->first();
return ['api_request_return'=>'ok', 'return' => $user];
}catch(\Exception $error){
return ['api_request_return' => 'error', 'error_details' => $error];
}
}
The API route is ok, but its always returning error:
{
"api_request_return": "error",
"error_details": {}
}
Use the corrected one
public function find_user(Request $request){
try{
$user = DB::table('user_accesses')->where('email', $request->email)->first();
return ['api_request_return'=>'ok', 'return' => $user];
}catch(\Exception $error){
return ['api_request_return' => 'error', 'error_details' => $error];
}
}

Is there any way to change response of auth:api , A laravel api_token

I am creating API with Default api-authentication
I am using laravel 6.x
Its run when i generate on user register and pass generated token with request.
But
when i pass a wrong token, Then it shows a Login page HTML, i want to show some custom JSON response instead of HTML
Also is there any way to check that passed token is same with passed user id or not. Because user can pass different user id with token.
My api route file as below
Route::middleware('auth:api')->post('/listUser', 'ApiController#listUser');
I have manage my points as below
For Point 1
when i pass a wrong token, Then it shows a Login page HTML, i want to show some custom JSON response instead of HTML
I made change in App/Exceptions/handler.php
Modify render function as below
public function render($request, Exception $exception)
{
if ($exception instanceof NotFoundHttpException) {
if ($request->is('api/*')) {
return response()->json(['error' => 'Not Found'], 404);
}
//return response()->view('404', [], 404);
}
return parent::render($request, $exception);
}
It workrs well because i have an api based routes
My api route look likes
// Request with Authentication v1
Route::group(['prefix' => 'v1', 'namespace' => 'Api\v1', 'middleware' => ['api','auth:api'] ], function () {
Route::post('/myProfile', 'ApiController#myProfile');
});
// Request without Authentication v1
Route::group(['prefix' => 'v1', 'namespace' => 'Api\v1', 'middleware' => 'api'], function () {
Route::post('/register', 'ApiController#register');
});
For Point 2
Also is there any way to check that passed token is same with passed user id or not. Because user can pass different user id with token.
For that i have created a function checkValidations in ApiController and check user id is associated with particular token or not as below:
In that function i check in way that
Check for all validation passed from called method
Match token associated with user id then return success
else return invalid token response
Function Code
public function checkValidations($required = [], $request = [])
{
$validator = Validator::make($request->all(), $required);
if ($validator->fails()) {
$this->response[] = array(
'status' => 'false',
'response_msg' => implode(",",$validator->messages()->all()),
);
return array('response' => $this->response);
} else if(isset($request['api_token']) && auth('api')->user()->id ==
$request['id']) {
return 'success';
} else {
$this->response[] = array(
'status' => 'false',
'response_msg' => 'Invalid token',
);
return array('response' => $this->response);
}
}
And call that checkValidations from any function and can reuse it as
public function myProfile(Request $request)
{
$validation = [
'id' => 'bail|required|exists:users',
'api_token' => 'bail|required|min:60|max:60'
];
if( $this->checkValidations($validation, $request) == 'success'){
$this->response[] = array(
'status' => 'true',
'response_msg' => 'Success',
'data' => auth('api')->user()
);
}
return array('response' => $this->response);
}
May be there is many other best way to manage that points, but i didn't found, so i manage in above ways.
You can configure a custom response in the Authenticate middleware. e.g.
public function handle($request, Closure $next, $guard = null)
{
if (Auth::guard($guard)->guest()) {
if ($guard === 'api') {
return response('Unauthorized.', 401);
} else {
return redirect()->guest('login');
}
}
return $next($request);
}
You can do this by extending the TokenGuard, with your custom logic. Or you can create a new Middleware, which asserts that user authenticated by API matches the passed user ID.
I just verified the kind of exception if is related with authentication and then the URL( as API guard use '/api' just verify it) and fire the response.
if($exception instanceof \Illuminate\Auth\AuthenticationException){
if($request->is('api/*')){
return response()->json([
'success' => false,
'message' => 'User not logged'
]);
}
}
I made the below change in app/Exceptions/Handler.php.
protected function unauthenticated($request, AuthenticationException $exception)
{
if ($request->expectsJson()) {
return response()->json(['error' => 'Not Authorized'], 404);
}
return redirect()->guest(route('login'));
}
Add use Illuminate\Auth\AuthenticationException in the document. Also, do not forget to add X-Requested-With:XMLHttpRequest to your request header. (Or Headers in postman)
return redirect()->guest(route('login')); is to redirect you to login page when you are not using the APIs.

For Laravel, How to return a response to client in a inner function

I'm building an api using laravel, the issue is when the client requests my api by calling create() function, and the create()function will call a getValidatedData() function which I want to return validation errors to the client if validation fails or return the validated data to insert database if validation passes, my getValidatedData function is like below so far
protected function getValidatedData(array $data)
{
// don't format this class since the rule:in should avoid space
$validator = Validator::make($data, [
'ID' => 'required',
'weight' => 'required',
]);
if ($validator->fails()) {
exit(Response::make(['message' => 'validation fails', 'errors' => $validator->errors()]));
}
return $data;
}
I don't think exit() is a good way to return the errors message to clients. are there any other ways I can return the laravel Response to clients directly in an inner function. use throwing Exception?
This was what worked for me in Laravel 5.4
protected function innerFunction()
{
$params = [
'error' => 'inner_error_code',
'error_description' => 'inner error full description'
];
response()->json($params, 503)->send();
}
What you can do is using send method, so you can use:
if ($validator->fails()) {
Response::make(['message' => 'validation fails', 'errors' => $validator->errors()])->send();
}
but be aware this is not the best solution, better would be for example throwing exception with those data and adding handling it in Handler class.
EDIT
As sample of usage:
public function index()
{
$this->xxx();
}
protected function xxx()
{
\Response::make(['message' => 'validation fails', 'errors' => ['b']])->send();
dd('xxx');
}
assuming that index method is method in controller you will get as response json and dd('xxx'); won't be executed
You can use this method
public static function Validate($request ,$rolse)
{
// validation data
$validator = Validator::make($request->all(),$rolse);
$errors = $validator->getMessageBag()->toArray();
$first_error = array_key_first($errors);
if (count($errors) > 0)
return 'invalid input params , ' . $errors[$first_error][0];
return false;
}
in controller :
$validate = ValidationHelper::Validate($request,
['title' => 'required']);
if ($validate)
return response()->json(['message' =>'validation fails' , 'error'=> $validate], 403);

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