---

"_Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted **Hug** to be - it's really inspiring to see someone build that._"

This is in contrast to the **development** stages, where you are constantly changing the code, breaking it and fixing it, stopping and restarting the development server, etc.

## Deployment Strategies

There are several ways to do it depending on your specific use case and the tools that you use.

But you should first read the **Tutorial - User Guide** (what you are reading right now).

---

"_Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted **Hug** to be - it's really inspiring to see someone build that._"

---

"_Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted **Hug** to be - it's really inspiring to see someone build that._"

---

<div style="text-align: left; direction: ltr;">"Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted <strong>Hug</strong> to be - it's really inspiring to see someone build that."</div>

## OAuth2

OAuth2 is a specification that defines several ways to handle authentication and authorization.

It is quite an extensive specification and covers several complex use cases.

It includes ways to authenticate using a "third party".

That's what all the systems with "login with Facebook, Google, Twitter, GitHub" use underneath.

### OAuth 1

=== "Python 3.8+"

    ```Python hl_lines="15  19  24"
    {!> ../../../docs_src/dependencies/tutorial001_02_an.py!}
    ```

!!! tip "Подсказка"
    Это стандартный синтаксис python и называется "type alias", это не особенность **FastAPI**.

    Но потому что **FastAPI** базируется на стандартах Python,  включая `Annotated`, вы можете использовать этот трюк в вашем коде. 😎

---

"_Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted **Hug** to be - it's really inspiring to see someone build that._"

---

"_Honestly, what you've built looks super solid and polished. In many ways, it's what I wanted **Hug** to be - it's really inspiring to see someone build that._"