Problem with stream

[AkramZerarka]

Livewire version

v3.5.8

Laravel version

v10.48.20

Which PHP version are you using?

PHP 8.3

Steps To Reproduce

Bug Report: JSON Parsing Error in HasKheops Trait During Streaming

Description:

When using the HasKheops trait, there is an issue where a SyntaxError: Unexpected token '<', "<!DOCTYPE "... is not valid JSON is thrown during a streaming request.

This occurs when the following conditions are met:

• The askKheops method is executed to handle LLM (Large Language Model) responses.
• Upon completion of streaming data, instead of receiving valid JSON, the system tries to parse an HTML response (likely an error page), resulting in a syntax error.

Error Stack:

VM6546:1 Uncaught (in promise) SyntaxError: Unexpected token '<', ") at sendRequest (livewire.js?id=cc800bf4:4321:52) at async RequestPool.send

Steps to Reproduce:

1. Call the askKheops method.
2. Stream data from the LLM through HandlesStreaming.
3. Wait for the stream to complete.
4. Observe the console error stating a JSON parsing issue.

Expected Behavior:

The stream should complete without attempting to parse non-JSON data, or the error should be handled gracefully if the response is not valid JSON.

Code Sample:

public function askKheops($store = false): void
{
    $llm = LlmManagerFacade::build('kheops');
    $message = $this->pull('generatedMessage');
    foreach ($llm->getIteration($message) as $item) {
        if (isset($item['error'])) {
            try {
                $this->closeModal();
            } catch (Exception $exception) {
                Log::error($exception->getMessage());
            }
            $this->notification()->error(
                $title = trans('Server Error'),
                $description = $item['error']
            );
        } else {
            $this->dispatch('scrollToBottom');
            $this->stream('content', nl2br($item));
        }
    }
    $this->content = $llm->getGeneratedText();

    if ($store) {
        $this->store(message: $this->content);
        $this->reset('isLoading');
    }
}


### Repository or Wirebox URL

https://wirebox.app/b/430z7

### Additional information

_No response_

### Please confirm (incomplete submissions will not be addressed)

- [X] I have provided easy and step-by-step instructions to reproduce the bug.
- [X] I have provided code samples as text and NOT images.
- [X] I understand my bug report will be removed if I haven't met the criteria above.

[boptom]

For anyone who comes across this, it may be related to: Maximum execution time of 30 seconds exceeded

Change or add this line in php.ini:
max_execution_time = 300

[david371571]

Anyone else run into this?

I have an old project (started on Laravel 8 + Livewire 2, now upgraded to Laravel 12 + Livewire 3) where wire:stream causes a Unexpected end of JSON input error at the end of the stream. In a fresh Laravel 12 + Livewire 3 project, the same code works fine.

In the working project, the response ends with a {"components":[...]}
block. In the broken one, it ends after the last {"stream":true,...} chunk and never sends the components block.

I removed all middlewareand dev tools, but nothing helps. Anyone know what might cause Livewire to skip the final response?

[boptom]

Did you try the above?

#8813 (comment)

[david371571]

Found it... It's a symfony/http-foundation bug introduced in v7.3. See laravel/framework#55894
Solved by adding v7.2 to composer.json:

{
    "require": {
        ...
        "symfony/http-foundation": "~7.2.0"
        ...
    }
}