Customize the broadcasted data according to users' rights
Hello,
I have one event which has to be broadcasted to several users, but not with the same data.
Example with an event sending some data related to an endpoint.
user A : all the endpoint properties
user B : only the endpoint id
// event EndpointUpdated
public function broadcastOn(): array
{
$channels = [];
foreach ($this->users as $user) {
$channels[] = new PrivateChannel('users.'.$user->id);
}
return $channels;
}
public function broadcastWith(): array
{
// return different data according the private channel / user id
}
I explain a bit more : user A and user B are connected, user A saves a change in some data => user A receives an event and user B receives an event, but not with the same data.
How can I customize the data according to the channel / user id ?
AFAIK the broadcastWith() output is sent to all channels, so you probably cannot do that by a simple tweak.
i would modify the EndpointUpdated to just broadcast to a single private channel (single user, not an array of all users/channels) and therefore you can just construct the output in broadcastWith() by checking the role/updated_by or whatever. and then dispatch the EndpointUpdated for every (listening) user.
i am not very skilled in broadcasting, this is just something what i immediately though of. i have no idea of the performance impact, but if you have many users i think you can just broadcast two* events. one for the updater with full data and one for the rest of the users, just with the limited data.
According to my example, when user A changes the datas, user B will received some data via the event, but according to his own rights, ie according to user B's rights.
When user A changes the datas, for Laravel the connected user is user A. But user B has to receive an event according to his own rights.
@vincent15000 to simplify my response, if you have two sets of users (A, B) and two sets of data to send to them:
tweak the EndpointUpdated event to support two formats of output data:
full details, for the user (A) that changes the data
limited details, for the others (B)
do this by setting a property via a constructor (and switch accordingly in the broadcastWith()) or just check the users roles, compare the user id to updater id, etc
public function __construct(
public $users,
public $sendFullDetails = false
) {
//
}
public function broadcastWith(): array
{
if ($this->sendFullDetails) {
//full details
} else {
//limited details
}
}
