Der Vorgang, der stattfindet, wenn Ihre API-Anwendung die *externe API* aufruft, wird als „Callback“ („Rückruf“) bezeichnet. Denn die Software, die der externe Entwickler geschrieben hat, sendet einen Request an Ihre API und dann *ruft Ihre API zurück* (*calls back*) und sendet einen Request an eine *externe API* (die wahrscheinlich vom selben Entwickler erstellt wurde).

One particular advantage that is not necessarily obvious is that you can **generate clients** (sometimes called <abbr title="Software Development Kits">**SDKs**</abbr> ) for your API, for many different **programming languages**.

## OpenAPI Client Generators

There are many tools to generate clients from **OpenAPI**.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

    "Programming Language :: Python :: 3",
    "Programming Language :: Python",
    "Topic :: Internet",
    "Topic :: Software Development :: Libraries :: Application Frameworks",
    "Topic :: Software Development :: Libraries :: Python Modules",
    "Topic :: Software Development :: Libraries",
    "Topic :: Software Development",
    "Typing :: Typed",
    "Development Status :: 4 - Beta",
    "Environment :: Web Environment",

## Restarts

Similar to making sure your application is run on startup, you probably also want to make sure it is **restarted** after failures.

### We Make Mistakes

We, as humans, make **mistakes**, all the time. Software almost *always* has **bugs** hidden in different places. 🐛

And we as developers keep improving the code as we find those bugs and as we implement new features (possibly adding new bugs too 😅).

    * **Talks**:
        * [PyConBY 2020: Serve ML models easily with FastAPI](https://www.youtube.com/watch?v=z9K5pwb0rt8) by [Sebastián Ramírez (tiangolo)](https://twitter.com/tiangolo).
        * [[VIRTUAL] Py.Amsterdam's flying Software Circus: Intro to FastAPI](https://www.youtube.com/watch?v=PnpTY1f4k2U) by [Sebastián Ramírez (tiangolo)](https://twitter.com/tiangolo).
    * PR [#1467](https://github.com/tiangolo/fastapi/pull/1467).

# This CITATION.cff file was generated with cffinit.
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    family-names: Ramírez
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## Voter pour FastAPI

* <a href="https://www.slant.co/options/34241/~fastapi-review" class="external-link" target="_blank">Votez pour **FastAPI** sur Slant</a>.
* <a href="https://alternativeto.net/software/fastapi/" class="external-link" target="_blank">Votez pour **FastAPI** sur AlternativeTo</a>.
* <a href="https://github.com/marmelab/awesome-rest/pull/93" class="external-link" target="_blank">Votez pour **FastAPI** sur awesome-rest</a>.

The process that happens when your API app calls the *external API* is named a "callback". Because the software that the external developer wrote sends a request to your API and then your API *calls back*, sending a request to an *external API* (that was probably created by the same developer).

## 为 FastAPI 投票

* <a href="https://www.slant.co/options/34241/~fastapi-review" class="external-link" target="_blank">在 Slant 上为 **FastAPI** 投票</a>
* <a href="https://alternativeto.net/software/fastapi/" class="external-link" target="_blank">在 AlternativeTo 上为 **FastAPI** 投票</a>

## 在 GitHub 上帮助其他人解决问题