How to create ChatGPT-enabled Hubleto app

In this example we will show how easy an integration with ChatGPT can be implemented.

Initialize project

We are going to create the HubletoApp called ChatGpt. To do this, we first need to create an empty project:

cd /var/www/html/hubleto-chatgpt
composer create-project hubleto/erp-project .
php hubleto init

IMPORTANT We will be using hubleto-chatgpt folder for this project. You may use anything else but do not forget to replace the folder in all examples.

Install required libraries

We will need some 3rd-party libraries for communicating with the OpenAI.

composer require openai-php/client

Get OpenAI API key

You need API key to identify your API requests. You can get one at  https://platform.openai.com/api-keys

The API looks similar to this:

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Create empty app

Now, with the project core ready, we can create an empty app called ChatGpt. It's as easy as this:

php hubleto create app ChatGpt

IMPORTANT You will find your new app in /var/www/html/hubleto-chatgpt/src/apps/chatgpt. All app's files will be stored in this folder.

Modify the Home.twig

Each Hubleto app comes by default with Controllers/Home.php controller which uses the Views/Home.twig view. Now modify the default Views/Home.twig file and add a simple input to get the prompt and a form to submit the prompt. You may use the code below.

<h1 class="app-main-title">ChatGpt</h1>
<div class="card mt-2 p-2 w-full flex flex-col gap-2">
  <form action="" method="POST">
    <div>
      <input
        class="w-full"
        name="prompt"
        placeholder="Enter ChatGpt prompt here..."
        value=""
      />
      <button type="submit" class="btn btn-transparent mt-2"><span class="text">Go, ChatGpt, go!</span></button>
    </div>
    {% if viewParams.result %}
      <div class="mt-4">
        <code class="text-blue-800 bg-slate-50 p-2">{{ viewParams.result.choices[0].message.content }}</code>
      </div>
    {% endif %}
  </form>
</div>

Your new home screen is available at  http://localhost/hubleto-chatgpt/chatgpt and should look like this:

Do the AI magic in Home.php controller

The Controllers/Home.php does the all AI magic. Replace the prepareView method in the controller with following content. Do not forget to replace your-openai-api-key with your real API key.

public function prepareView(): void
{
  parent::prepareView();
  $prompt = $this->router()->urlParamAsString('prompt');
  if (!empty($prompt)) {
    $client = \OpenAI::client('your-openai-api-key');
    $this->viewParams['result'] = $client->chat()->create([
      'model' => 'gpt-4o',
      'messages' => [ ['role' => 'user', 'content' => $prompt] ],
    ]);
  }
  $this->setView('@Hubleto:App:Custom:ChatGpt/Home.twig');
}

Test it now!

Now open  http://localhost/hubleto-chatgpt/chatgpt, enter your prompt and enjoy chat with ChatGPT. :-)