How to redirect to a page using an event handler

[stephenmeehanuk]

Hi, hoping someone can help with this.

I've made an event handler using FormSubmitted.

1. It posts form data to Active Campaign using the Active Campaign API
2. It checks if the email address being used already exists in Active Campaign before submitting the data
3. If the email address exists I show a message at the top of the form using session()->flash.
4. The message only shows if I remove the redirect attribute from the form tag
5. I'm trying to trigger a redirect at the end of the event handler inside if ($response->getStatusCode() === 201), but I can't get it to work?

Here's my event handler, everything works accept for the redirect.

<?php

namespace App\Listeners;

use Statamic\Events\FormSubmitted;
use Illuminate\Support\Facades\Log;
use Illuminate\Support\Facades\Http;
use Illuminate\Contracts\Queue\ShouldQueue;
use Illuminate\Support\Facades\Redirect; // Import the Redirect facade


class ContactFormSubmitted
{
    /**
     * Create the event listener.
     */
    public function __construct()
    {
        //
    }

    /**
     * Handle the event.
     */
    public function handle(FormSubmitted $event)
    {
    
    
        if ($event->submission->form->handle() == 'contact') {

            // Check if email is already in use
            $response = Http::withHeaders([
                'Api-Token' => 'xxxxxxxx',
            ])->acceptJson()
            ->get('https://xxxxxxxxx/api/3/contacts', [
                'email' => $event->submission->email,
            ]);

            $responseData = $response->json();
            $existingContact = $responseData['contacts'][0] ?? null;

            // Check if Email address already exists
            if ($existingContact !== null) {
                session()->flash('message', 'Email address already exists: ' . $event->submission->email);
            } else {
                // Create contact
                $response = Http::withHeaders([
                    'Api-Token' => 'xxxxxxxx',
                ])->acceptJson()
                ->post('https://xxxxxxxxx/api/3/contacts', [
                        'contact' => [
                            'email' => $event->submission->email,
                            'firstName' => $event->submission->firstname,
                            'lastName' => $event->submission->lastname,
                        ],                
                ]);

                } 
                
                 if ($response->getStatusCode() === 201) {
                    Log::info('API call successful.');
                    // Redirect on form submission
                    return Redirect::to('/thanks'); // Use Redirect::to() to specify the URL for redirection
                } else {
                    Log::error('API call failed.');
                }
            }
        }
    }   
}

[stephenmeehanuk]

I've created a second SubmissionSaved event handler, removing the redirect from the previous FormSubmitted event handler

It triggers the message Submission Saved in my log, but the redirect doesn't work?

 public function handle(SubmissionSaved $event)
    {
        
        if ($event->submission->form->handle() == 'contact') {
            Log::info('Submission Saved');
            return redirect('/thanks');            
        }
    }

As I'm using Statamic\Events\SubmissionSaved is there a Statamic way/helper that I should be using?

[jasonvarga]

You cannot modify the redirect itself.

Interesting timing though. That's what this PR is trying to achieve. #8729

[stephenmeehanuk]

Duncan in Discord has just helped me out. I was trying to use session()->flash to display a message, when really what I needed to use was throw ValidationException::withMessages

[jasonvarga]

Even better!