PHP code example of lingoda / langfuse-bundle

    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

    

lingoda / langfuse-bundle example snippets

return [
    // ...
    Lingoda\LangfuseBundle\LingodaLangfuseBundle::class => ['all' => true],
];

use Lingoda\AiSdk\PlatformInterface;

class ContentService
{
    public function __construct(
        private PlatformInterface $platform
    ) {}

    public function generateContent(string $prompt): string
    {
        // This call is automatically traced to Langfuse with proper generation and usage metrics
        $result = $this->platform->ask($prompt, 'gpt-4');

        return $result->getContent();
    }

    public function generateAudio(string $text): string
    {
        // TTS operations are also traced
        $audio = $this->platform->textToSpeech($text);

        return $audio->getContent();
    }
}

$result = $this->platform->ask($conversation, 'amazon.nova-2-lite-v1:0', ['trace_content' => false]);

$conversation = $this->prompts->getCompiled('mnr-voucher-fields', $parameters, version: 1);
$result = $this->platform->ask($conversation, $model, ['langfuse_prompt' => $this->prompts->reference('mnr-voucher-fields', 1)]);

$result = $this->platform->ask($conversation, $model, ['langfuse_session_id' => $runId, 'langfuse_user_id' => 'reporting-cron']);

use Lingoda\LangfuseBundle\Prompt\PromptRegistryInterface;
use Lingoda\AiSdk\Prompt\Conversation;

class EmailService
{
    public function __construct(
        private PromptRegistryInterface $prompts
    ) {}

    public function generateWelcomeEmail(string $userName): Conversation
    {
        // Intelligent cascade: Cache → API → Storage
        return $this->prompts->get('welcome_email');
    }

    public function generateCustomEmail(string $promptName, array $variables): Conversation
    {
        // Get specific version with variables
        $prompt = $this->prompts->getCompiled($promptName, $variables);

        return $prompt;
    }
}

use Lingoda\AiSdk\Result\TextResult;
use Lingoda\LangfuseBundle\Tracing\TraceManagerInterface;

class SummaryService
{
    public function __construct(
        private TraceManagerInterface $traceManager
    ) {}

    public function summarize(string $text): TextResult
    {
        return $this->traceManager->trace(
            'custom-summary',
            ['model' => 'my-local-model'], // a model makes it a generation
            $text,
            fn () => $this->runSummary($text) // returns a ResultInterface
        );
    }
}

bash
php bin/console messenger:consume langfuse_traces --time-limit=3600

# or multiple workers for high throughput
php bin/console messenger:consume langfuse_traces --limit=100
php bin/console messenger:consume langfuse_traces --limit=100
...

bash
php bin/console langfuse:test-connection