Question 414462 in Laravel Question posted in
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When using defer in routes in laravel, a php fatal error is returned

Im playing around with defer in laravel. I have this:

Route::get('testing', function () {
    defer(function(){
        //          sleep(3);
        Log::info('sleeping');
    })
        ->always(); // Will always run defer once executed

    return 'Rtoufasdfa';
});

Im getting this in my sail terminal.

PHP Fatal error:  Uncaught SwooleError: API must be called in the coroutine in /var/www/html/routes/web.php:94
  Stack trace:
2024-11-08 23:15:05,688 INFO reaped unknown pid 1093 (exit status 255)
 2024-11-08 23:15:05,688 INFO reaped unknown pid 1094 (exit status 255)
 #0 /var/www/html/routes/web.php(94): defer()

anyone familiar with defer whove ran into this issue?

Tags:

2

Answers


  1. 0

    This means it looks like defer() requires a coroutine context, not available in standard Laravel routes.

    If one needs to run some tasks at the end of a request,

    try using register_shutdown_function since this function works outside coroutines:

    Route::get('testing', function () {
    register_shutdown_function(function() {
        Log::info('sleeping');
    });

    return 'Rtoufasdfa'; 
});
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  2. 0

    The error SwooleError: API must be called in the coroutine indicates that the defer function is being called outside of a Swoole coroutine context. Swoole’s defer function is designed to run cleanup tasks at the end of a coroutine, so it needs to be called within a coroutine.

    In Laravel, if you’re using Sail with Swoole, your code execution might not always be in a coroutine by default, especially in route closures. To solve this issue, you can make sure your code runs inside a coroutine.

    Here’s how you can wrap your code inside a coroutine for testing purposes:

    use SwooleCoroutine;

Route::get('testing', function () {
    Coroutinerun(function () {
        defer(function () {
            Log::info('sleeping');
        });

        // Your main code logic here
        return 'Rtoufasdfa';
    });
});

    If you need a more permanent solution for using coroutines within a controller or other parts of the application, you may want to use a Swoole-compatible package, such as swooletw/laravel-swoole, which can handle coroutine context automatically. Then, define your logic within a controller, ensuring it’s compatible with Swoole’s coroutine system.

    With this approach, the code in defer will execute correctly inside a coroutine, and the always() call should work as expected.

    Let me know if this helps resolve your error!

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