Managing Pending Operations in Laravel 11 Using PendingChain::catch()

Many Laravel developers are always looking for ways to enhance the management of pending operations. One of the newest features introduced in Laravel 11 is the method PendingChain::catch(). This method enables us to manage potential errors that may occur during the execution of concurrent operations more effectively.

When you are using concurrent operations, it is commonly considered that tasks may face one or several errors. Now, by using catch(), you can manage general errors as well as specifically define what actions should be taken in the case of an error occurring. This allows you to ensure that no part of the task management remains unhandled.

Using PendingChain::catch() is quite simple. You can add a series of jobs to the chain and identify errors correctly to manage them professionally. This method provides you with the capability to define a callback for each error. In this way, you can specify the appropriate response to take should an error occur during the execution of pending tasks.

The process of using this method is as follows: you create the tasks you want to add to the chain and then, by using catch(), identify what should be done if an error occurs. For example, you could send the user a relevant message indicating that they need to resend the request.

Example Code

use Illuminate\Bus\PendingChain;

PendingChain::new()->
    push(new JobOne())
    ->push(new JobTwo())
    ->catch(function ($exception) {
        // Error management
        Log::error($exception);
    })
    ->dispatch();

Code Explanation

use Illuminate\Bus\PendingChain;
This line allows us to use the PendingChain class found in the namespace Illuminate\Bus.

PendingChain::new()
Here, we create a new instance of the PendingChain class.

push(new JobOne())
This adds a new job to the chain, with JobOne being the name of the job.

->push(new JobTwo())
In the next stage, we add another job to the chain.

->catch(function ($exception) { ... })
Here we define a callback for error management, which when an error occurs in the queue, performs specific actions like logging the error.

->dispatch();
Finally, this executes the chain of jobs.