codeception rest api auth header

Codeception has a method called haveHttpHeader you can add any header using it.

This is documented half-way down this page. There is also a section on authorization on this other page.

There are a few built-in authorization methods, like amBearerAuthenticated, amAWSAuthenticated, but I believe that there isn't a specific method for JWT.

 class CreateWorkspaceCest
 {
    public function _before(ApiTester $I)
    {

    }

    public function successCreate(ApiTester $I)
    {
        $title = 'create test';
        $description = 'test description';

        // You can add any header like this:
        $I->haveHttpHeader('Content-Type', 'application/json');
        $I->haveHttpHeader('Authorization', 'Bearer user-one-access-token');

        // To add the header that you show in the question, you can use:
        $I->haveHttpHeader('JWT-Key', '<TOKEN>');

        $I->sendPost('/workspace/create', [
            'title' => $title,
            'description' => $description,
        ]);

        $I->seeResponseCodeIs(\Codeception\Util\HttpCode::OK); // 200
        $I->seeResponseIsJson();

        $I->seeResponseContainsJson([
            'title' => $title,
            'description' => $description,
            'status' => 'active',
        ]);
    }
}