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  1. Metadata-Version: 2.1
  2. Name: fastapi
  3. Version: 0.104.1
  4. Summary: FastAPI framework, high performance, easy to learn, fast to code, ready for production
  5. Project-URL: Homepage, https://github.com/tiangolo/fastapi
  6. Project-URL: Documentation, https://fastapi.tiangolo.com/
  7. Project-URL: Repository, https://github.com/tiangolo/fastapi
  8. Author-email: Sebastián Ramírez <tiangolo@gmail.com>
  9. License-Expression: MIT
  10. License-File: LICENSE
  11. Classifier: Development Status :: 4 - Beta
  12. Classifier: Environment :: Web Environment
  13. Classifier: Framework :: AsyncIO
  14. Classifier: Framework :: FastAPI
  15. Classifier: Framework :: Pydantic
  16. Classifier: Framework :: Pydantic :: 1
  17. Classifier: Intended Audience :: Developers
  18. Classifier: Intended Audience :: Information Technology
  19. Classifier: Intended Audience :: System Administrators
  20. Classifier: License :: OSI Approved :: MIT License
  21. Classifier: Operating System :: OS Independent
  22. Classifier: Programming Language :: Python
  23. Classifier: Programming Language :: Python :: 3
  24. Classifier: Programming Language :: Python :: 3 :: Only
  25. Classifier: Programming Language :: Python :: 3.8
  26. Classifier: Programming Language :: Python :: 3.9
  27. Classifier: Programming Language :: Python :: 3.10
  28. Classifier: Programming Language :: Python :: 3.11
  29. Classifier: Topic :: Internet
  30. Classifier: Topic :: Internet :: WWW/HTTP
  31. Classifier: Topic :: Internet :: WWW/HTTP :: HTTP Servers
  32. Classifier: Topic :: Software Development
  33. Classifier: Topic :: Software Development :: Libraries
  34. Classifier: Topic :: Software Development :: Libraries :: Application Frameworks
  35. Classifier: Topic :: Software Development :: Libraries :: Python Modules
  36. Classifier: Typing :: Typed
  37. Requires-Python: >=3.8
  38. Requires-Dist: anyio<4.0.0,>=3.7.1
  39. Requires-Dist: pydantic!=1.8,!=1.8.1,!=2.0.0,!=2.0.1,!=2.1.0,<3.0.0,>=1.7.4
  40. Requires-Dist: starlette<0.28.0,>=0.27.0
  41. Requires-Dist: typing-extensions>=4.8.0
  42. Provides-Extra: all
  43. Requires-Dist: email-validator>=2.0.0; extra == 'all'
  44. Requires-Dist: httpx>=0.23.0; extra == 'all'
  45. Requires-Dist: itsdangerous>=1.1.0; extra == 'all'
  46. Requires-Dist: jinja2>=2.11.2; extra == 'all'
  47. Requires-Dist: orjson>=3.2.1; extra == 'all'
  48. Requires-Dist: pydantic-extra-types>=2.0.0; extra == 'all'
  49. Requires-Dist: pydantic-settings>=2.0.0; extra == 'all'
  50. Requires-Dist: python-multipart>=0.0.5; extra == 'all'
  51. Requires-Dist: pyyaml>=5.3.1; extra == 'all'
  52. Requires-Dist: ujson!=4.0.2,!=4.1.0,!=4.2.0,!=4.3.0,!=5.0.0,!=5.1.0,>=4.0.1; extra == 'all'
  53. Requires-Dist: uvicorn[standard]>=0.12.0; extra == 'all'
  54. Description-Content-Type: text/markdown
  55. <p align="center">
  56. <a href="https://fastapi.tiangolo.com"><img src="https://fastapi.tiangolo.com/img/logo-margin/logo-teal.png" alt="FastAPI"></a>
  57. </p>
  58. <p align="center">
  59. <em>FastAPI framework, high performance, easy to learn, fast to code, ready for production</em>
  60. </p>
  61. <p align="center">
  62. <a href="https://github.com/tiangolo/fastapi/actions?query=workflow%3ATest+event%3Apush+branch%3Amaster" target="_blank">
  63. <img src="https://github.com/tiangolo/fastapi/workflows/Test/badge.svg?event=push&branch=master" alt="Test">
  64. </a>
  65. <a href="https://coverage-badge.samuelcolvin.workers.dev/redirect/tiangolo/fastapi" target="_blank">
  66. <img src="https://coverage-badge.samuelcolvin.workers.dev/tiangolo/fastapi.svg" alt="Coverage">
  67. </a>
  68. <a href="https://pypi.org/project/fastapi" target="_blank">
  69. <img src="https://img.shields.io/pypi/v/fastapi?color=%2334D058&label=pypi%20package" alt="Package version">
  70. </a>
  71. <a href="https://pypi.org/project/fastapi" target="_blank">
  72. <img src="https://img.shields.io/pypi/pyversions/fastapi.svg?color=%2334D058" alt="Supported Python versions">
  73. </a>
  74. </p>
  75. ---
  76. **Documentation**: <a href="https://fastapi.tiangolo.com" target="_blank">https://fastapi.tiangolo.com</a>
  77. **Source Code**: <a href="https://github.com/tiangolo/fastapi" target="_blank">https://github.com/tiangolo/fastapi</a>
  78. ---
  79. FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.8+ based on standard Python type hints.
  80. The key features are:
  81. * **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
  82. * **Fast to code**: Increase the speed to develop features by about 200% to 300%. *
  83. * **Fewer bugs**: Reduce about 40% of human (developer) induced errors. *
  84. * **Intuitive**: Great editor support. <abbr title="also known as auto-complete, autocompletion, IntelliSense">Completion</abbr> everywhere. Less time debugging.
  85. * **Easy**: Designed to be easy to use and learn. Less time reading docs.
  86. * **Short**: Minimize code duplication. Multiple features from each parameter declaration. Fewer bugs.
  87. * **Robust**: Get production-ready code. With automatic interactive documentation.
  88. * **Standards-based**: Based on (and fully compatible with) the open standards for APIs: <a href="https://github.com/OAI/OpenAPI-Specification" class="external-link" target="_blank">OpenAPI</a> (previously known as Swagger) and <a href="https://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.
  89. <small>* estimation based on tests on an internal development team, building production applications.</small>
  90. ## Sponsors
  91. <!-- sponsors -->
  92. <a href="https://cryptapi.io/" target="_blank" title="CryptAPI: Your easy to use, secure and privacy oriented payment gateway."><img src="https://fastapi.tiangolo.com/img/sponsors/cryptapi.svg"></a>
  93. <a href="https://platform.sh/try-it-now/?utm_source=fastapi-signup&utm_medium=banner&utm_campaign=FastAPI-signup-June-2023" target="_blank" title="Build, run and scale your apps on a modern, reliable, and secure PaaS."><img src="https://fastapi.tiangolo.com/img/sponsors/platform-sh.png"></a>
  94. <a href="https://www.buildwithfern.com/?utm_source=tiangolo&utm_medium=website&utm_campaign=main-badge" target="_blank" title="Fern | SDKs and API docs"><img src="https://fastapi.tiangolo.com/img/sponsors/fern.svg"></a>
  95. <a href="https://www.porter.run" target="_blank" title="Deploy FastAPI on AWS with a few clicks"><img src="https://fastapi.tiangolo.com/img/sponsors/porter.png"></a>
  96. <a href="https://bump.sh/fastapi?utm_source=fastapi&utm_medium=referral&utm_campaign=sponsor" target="_blank" title="Automate FastAPI documentation generation with Bump.sh"><img src="https://fastapi.tiangolo.com/img/sponsors/bump-sh.svg"></a>
  97. <a href="https://www.deta.sh/?ref=fastapi" target="_blank" title="The launchpad for all your (team's) ideas"><img src="https://fastapi.tiangolo.com/img/sponsors/deta.svg"></a>
  98. <a href="https://training.talkpython.fm/fastapi-courses" target="_blank" title="FastAPI video courses on demand from people you trust"><img src="https://fastapi.tiangolo.com/img/sponsors/talkpython.png"></a>
  99. <a href="https://testdriven.io/courses/tdd-fastapi/" target="_blank" title="Learn to build high-quality web apps with best practices"><img src="https://fastapi.tiangolo.com/img/sponsors/testdriven.svg"></a>
  100. <a href="https://github.com/deepset-ai/haystack/" target="_blank" title="Build powerful search from composable, open source building blocks"><img src="https://fastapi.tiangolo.com/img/sponsors/haystack-fastapi.svg"></a>
  101. <a href="https://careers.powens.com/" target="_blank" title="Powens is hiring!"><img src="https://fastapi.tiangolo.com/img/sponsors/powens.png"></a>
  102. <a href="https://databento.com/" target="_blank" title="Pay as you go for market data"><img src="https://fastapi.tiangolo.com/img/sponsors/databento.svg"></a>
  103. <a href="https://speakeasyapi.dev?utm_source=fastapi+repo&utm_medium=github+sponsorship" target="_blank" title="SDKs for your API | Speakeasy"><img src="https://fastapi.tiangolo.com/img/sponsors/speakeasy.png"></a>
  104. <a href="https://www.svix.com/" target="_blank" title="Svix - Webhooks as a service"><img src="https://fastapi.tiangolo.com/img/sponsors/svix.svg"></a>
  105. <!-- /sponsors -->
  106. <a href="https://fastapi.tiangolo.com/fastapi-people/#sponsors" class="external-link" target="_blank">Other sponsors</a>
  107. ## Opinions
  108. "_[...] I'm using **FastAPI** a ton these days. [...] I'm actually planning to use it for all of my team's **ML services at Microsoft**. Some of them are getting integrated into the core **Windows** product and some **Office** products._"
  109. <div style="text-align: right; margin-right: 10%;">Kabir Khan - <strong>Microsoft</strong> <a href="https://github.com/tiangolo/fastapi/pull/26" target="_blank"><small>(ref)</small></a></div>
  110. ---
  111. "_We adopted the **FastAPI** library to spawn a **REST** server that can be queried to obtain **predictions**. [for Ludwig]_"
  112. <div style="text-align: right; margin-right: 10%;">Piero Molino, Yaroslav Dudin, and Sai Sumanth Miryala - <strong>Uber</strong> <a href="https://eng.uber.com/ludwig-v0-2/" target="_blank"><small>(ref)</small></a></div>
  113. ---
  114. "_**Netflix** is pleased to announce the open-source release of our **crisis management** orchestration framework: **Dispatch**! [built with **FastAPI**]_"
  115. <div style="text-align: right; margin-right: 10%;">Kevin Glisson, Marc Vilanova, Forest Monsen - <strong>Netflix</strong> <a href="https://netflixtechblog.com/introducing-dispatch-da4b8a2a8072" target="_blank"><small>(ref)</small></a></div>
  116. ---
  117. "_I’m over the moon excited about **FastAPI**. It’s so fun!_"
  118. <div style="text-align: right; margin-right: 10%;">Brian Okken - <strong><a href="https://pythonbytes.fm/episodes/show/123/time-to-right-the-py-wrongs?time_in_sec=855" target="_blank">Python Bytes</a> podcast host</strong> <a href="https://twitter.com/brianokken/status/1112220079972728832" target="_blank"><small>(ref)</small></a></div>
  119. ---
  120. "_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._"
  121. <div style="text-align: right; margin-right: 10%;">Timothy Crosley - <strong><a href="https://www.hug.rest/" target="_blank">Hug</a> creator</strong> <a href="https://news.ycombinator.com/item?id=19455465" target="_blank"><small>(ref)</small></a></div>
  122. ---
  123. "_If you're looking to learn one **modern framework** for building REST APIs, check out **FastAPI** [...] It's fast, easy to use and easy to learn [...]_"
  124. "_We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]_"
  125. <div style="text-align: right; margin-right: 10%;">Ines Montani - Matthew Honnibal - <strong><a href="https://explosion.ai" target="_blank">Explosion AI</a> founders - <a href="https://spacy.io" target="_blank">spaCy</a> creators</strong> <a href="https://twitter.com/_inesmontani/status/1144173225322143744" target="_blank"><small>(ref)</small></a> - <a href="https://twitter.com/honnibal/status/1144031421859655680" target="_blank"><small>(ref)</small></a></div>
  126. ---
  127. "_If anyone is looking to build a production Python API, I would highly recommend **FastAPI**. It is **beautifully designed**, **simple to use** and **highly scalable**, it has become a **key component** in our API first development strategy and is driving many automations and services such as our Virtual TAC Engineer._"
  128. <div style="text-align: right; margin-right: 10%;">Deon Pillsbury - <strong>Cisco</strong> <a href="https://www.linkedin.com/posts/deonpillsbury_cisco-cx-python-activity-6963242628536487936-trAp/" target="_blank"><small>(ref)</small></a></div>
  129. ---
  130. ## **Typer**, the FastAPI of CLIs
  131. <a href="https://typer.tiangolo.com" target="_blank"><img src="https://typer.tiangolo.com/img/logo-margin/logo-margin-vector.svg" style="width: 20%;"></a>
  132. If you are building a <abbr title="Command Line Interface">CLI</abbr> app to be used in the terminal instead of a web API, check out <a href="https://typer.tiangolo.com/" class="external-link" target="_blank">**Typer**</a>.
  133. **Typer** is FastAPI's little sibling. And it's intended to be the **FastAPI of CLIs**. ⌨️ 🚀
  134. ## Requirements
  135. Python 3.8+
  136. FastAPI stands on the shoulders of giants:
  137. * <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> for the web parts.
  138. * <a href="https://pydantic-docs.helpmanual.io/" class="external-link" target="_blank">Pydantic</a> for the data parts.
  139. ## Installation
  140. <div class="termy">
  141. ```console
  142. $ pip install fastapi
  143. ---> 100%
  144. ```
  145. </div>
  146. You will also need an ASGI server, for production such as <a href="https://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a> or <a href="https://github.com/pgjones/hypercorn" class="external-link" target="_blank">Hypercorn</a>.
  147. <div class="termy">
  148. ```console
  149. $ pip install "uvicorn[standard]"
  150. ---> 100%
  151. ```
  152. </div>
  153. ## Example
  154. ### Create it
  155. * Create a file `main.py` with:
  156. ```Python
  157. from typing import Union
  158. from fastapi import FastAPI
  159. app = FastAPI()
  160. @app.get("/")
  161. def read_root():
  162. return {"Hello": "World"}
  163. @app.get("/items/{item_id}")
  164. def read_item(item_id: int, q: Union[str, None] = None):
  165. return {"item_id": item_id, "q": q}
  166. ```
  167. <details markdown="1">
  168. <summary>Or use <code>async def</code>...</summary>
  169. If your code uses `async` / `await`, use `async def`:
  170. ```Python hl_lines="9 14"
  171. from typing import Union
  172. from fastapi import FastAPI
  173. app = FastAPI()
  174. @app.get("/")
  175. async def read_root():
  176. return {"Hello": "World"}
  177. @app.get("/items/{item_id}")
  178. async def read_item(item_id: int, q: Union[str, None] = None):
  179. return {"item_id": item_id, "q": q}
  180. ```
  181. **Note**:
  182. If you don't know, check the _"In a hurry?"_ section about <a href="https://fastapi.tiangolo.com/async/#in-a-hurry" target="_blank">`async` and `await` in the docs</a>.
  183. </details>
  184. ### Run it
  185. Run the server with:
  186. <div class="termy">
  187. ```console
  188. $ uvicorn main:app --reload
  189. INFO: Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
  190. INFO: Started reloader process [28720]
  191. INFO: Started server process [28722]
  192. INFO: Waiting for application startup.
  193. INFO: Application startup complete.
  194. ```
  195. </div>
  196. <details markdown="1">
  197. <summary>About the command <code>uvicorn main:app --reload</code>...</summary>
  198. The command `uvicorn main:app` refers to:
  199. * `main`: the file `main.py` (the Python "module").
  200. * `app`: the object created inside of `main.py` with the line `app = FastAPI()`.
  201. * `--reload`: make the server restart after code changes. Only do this for development.
  202. </details>
  203. ### Check it
  204. Open your browser at <a href="http://127.0.0.1:8000/items/5?q=somequery" class="external-link" target="_blank">http://127.0.0.1:8000/items/5?q=somequery</a>.
  205. You will see the JSON response as:
  206. ```JSON
  207. {"item_id": 5, "q": "somequery"}
  208. ```
  209. You already created an API that:
  210. * Receives HTTP requests in the _paths_ `/` and `/items/{item_id}`.
  211. * Both _paths_ take `GET` <em>operations</em> (also known as HTTP _methods_).
  212. * The _path_ `/items/{item_id}` has a _path parameter_ `item_id` that should be an `int`.
  213. * The _path_ `/items/{item_id}` has an optional `str` _query parameter_ `q`.
  214. ### Interactive API docs
  215. Now go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.
  216. You will see the automatic interactive API documentation (provided by <a href="https://github.com/swagger-api/swagger-ui" class="external-link" target="_blank">Swagger UI</a>):
  217. ![Swagger UI](https://fastapi.tiangolo.com/img/index/index-01-swagger-ui-simple.png)
  218. ### Alternative API docs
  219. And now, go to <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.
  220. You will see the alternative automatic documentation (provided by <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>):
  221. ![ReDoc](https://fastapi.tiangolo.com/img/index/index-02-redoc-simple.png)
  222. ## Example upgrade
  223. Now modify the file `main.py` to receive a body from a `PUT` request.
  224. Declare the body using standard Python types, thanks to Pydantic.
  225. ```Python hl_lines="4 9-12 25-27"
  226. from typing import Union
  227. from fastapi import FastAPI
  228. from pydantic import BaseModel
  229. app = FastAPI()
  230. class Item(BaseModel):
  231. name: str
  232. price: float
  233. is_offer: Union[bool, None] = None
  234. @app.get("/")
  235. def read_root():
  236. return {"Hello": "World"}
  237. @app.get("/items/{item_id}")
  238. def read_item(item_id: int, q: Union[str, None] = None):
  239. return {"item_id": item_id, "q": q}
  240. @app.put("/items/{item_id}")
  241. def update_item(item_id: int, item: Item):
  242. return {"item_name": item.name, "item_id": item_id}
  243. ```
  244. The server should reload automatically (because you added `--reload` to the `uvicorn` command above).
  245. ### Interactive API docs upgrade
  246. Now go to <a href="http://127.0.0.1:8000/docs" class="external-link" target="_blank">http://127.0.0.1:8000/docs</a>.
  247. * The interactive API documentation will be automatically updated, including the new body:
  248. ![Swagger UI](https://fastapi.tiangolo.com/img/index/index-03-swagger-02.png)
  249. * Click on the button "Try it out", it allows you to fill the parameters and directly interact with the API:
  250. ![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-04-swagger-03.png)
  251. * Then click on the "Execute" button, the user interface will communicate with your API, send the parameters, get the results and show them on the screen:
  252. ![Swagger UI interaction](https://fastapi.tiangolo.com/img/index/index-05-swagger-04.png)
  253. ### Alternative API docs upgrade
  254. And now, go to <a href="http://127.0.0.1:8000/redoc" class="external-link" target="_blank">http://127.0.0.1:8000/redoc</a>.
  255. * The alternative documentation will also reflect the new query parameter and body:
  256. ![ReDoc](https://fastapi.tiangolo.com/img/index/index-06-redoc-02.png)
  257. ### Recap
  258. In summary, you declare **once** the types of parameters, body, etc. as function parameters.
  259. You do that with standard modern Python types.
  260. You don't have to learn a new syntax, the methods or classes of a specific library, etc.
  261. Just standard **Python 3.8+**.
  262. For example, for an `int`:
  263. ```Python
  264. item_id: int
  265. ```
  266. or for a more complex `Item` model:
  267. ```Python
  268. item: Item
  269. ```
  270. ...and with that single declaration you get:
  271. * Editor support, including:
  272. * Completion.
  273. * Type checks.
  274. * Validation of data:
  275. * Automatic and clear errors when the data is invalid.
  276. * Validation even for deeply nested JSON objects.
  277. * <abbr title="also known as: serialization, parsing, marshalling">Conversion</abbr> of input data: coming from the network to Python data and types. Reading from:
  278. * JSON.
  279. * Path parameters.
  280. * Query parameters.
  281. * Cookies.
  282. * Headers.
  283. * Forms.
  284. * Files.
  285. * <abbr title="also known as: serialization, parsing, marshalling">Conversion</abbr> of output data: converting from Python data and types to network data (as JSON):
  286. * Convert Python types (`str`, `int`, `float`, `bool`, `list`, etc).
  287. * `datetime` objects.
  288. * `UUID` objects.
  289. * Database models.
  290. * ...and many more.
  291. * Automatic interactive API documentation, including 2 alternative user interfaces:
  292. * Swagger UI.
  293. * ReDoc.
  294. ---
  295. Coming back to the previous code example, **FastAPI** will:
  296. * Validate that there is an `item_id` in the path for `GET` and `PUT` requests.
  297. * Validate that the `item_id` is of type `int` for `GET` and `PUT` requests.
  298. * If it is not, the client will see a useful, clear error.
  299. * Check if there is an optional query parameter named `q` (as in `http://127.0.0.1:8000/items/foo?q=somequery`) for `GET` requests.
  300. * As the `q` parameter is declared with `= None`, it is optional.
  301. * Without the `None` it would be required (as is the body in the case with `PUT`).
  302. * For `PUT` requests to `/items/{item_id}`, Read the body as JSON:
  303. * Check that it has a required attribute `name` that should be a `str`.
  304. * Check that it has a required attribute `price` that has to be a `float`.
  305. * Check that it has an optional attribute `is_offer`, that should be a `bool`, if present.
  306. * All this would also work for deeply nested JSON objects.
  307. * Convert from and to JSON automatically.
  308. * Document everything with OpenAPI, that can be used by:
  309. * Interactive documentation systems.
  310. * Automatic client code generation systems, for many languages.
  311. * Provide 2 interactive documentation web interfaces directly.
  312. ---
  313. We just scratched the surface, but you already get the idea of how it all works.
  314. Try changing the line with:
  315. ```Python
  316. return {"item_name": item.name, "item_id": item_id}
  317. ```
  318. ...from:
  319. ```Python
  320. ... "item_name": item.name ...
  321. ```
  322. ...to:
  323. ```Python
  324. ... "item_price": item.price ...
  325. ```
  326. ...and see how your editor will auto-complete the attributes and know their types:
  327. ![editor support](https://fastapi.tiangolo.com/img/vscode-completion.png)
  328. For a more complete example including more features, see the <a href="https://fastapi.tiangolo.com/tutorial/">Tutorial - User Guide</a>.
  329. **Spoiler alert**: the tutorial - user guide includes:
  330. * Declaration of **parameters** from other different places as: **headers**, **cookies**, **form fields** and **files**.
  331. * How to set **validation constraints** as `maximum_length` or `regex`.
  332. * A very powerful and easy to use **<abbr title="also known as components, resources, providers, services, injectables">Dependency Injection</abbr>** system.
  333. * Security and authentication, including support for **OAuth2** with **JWT tokens** and **HTTP Basic** auth.
  334. * More advanced (but equally easy) techniques for declaring **deeply nested JSON models** (thanks to Pydantic).
  335. * **GraphQL** integration with <a href="https://strawberry.rocks" class="external-link" target="_blank">Strawberry</a> and other libraries.
  336. * Many extra features (thanks to Starlette) as:
  337. * **WebSockets**
  338. * extremely easy tests based on HTTPX and `pytest`
  339. * **CORS**
  340. * **Cookie Sessions**
  341. * ...and more.
  342. ## Performance
  343. Independent TechEmpower benchmarks show **FastAPI** applications running under Uvicorn as <a href="https://www.techempower.com/benchmarks/#section=test&runid=7464e520-0dc2-473d-bd34-dbdfd7e85911&hw=ph&test=query&l=zijzen-7" class="external-link" target="_blank">one of the fastest Python frameworks available</a>, only below Starlette and Uvicorn themselves (used internally by FastAPI). (*)
  344. To understand more about it, see the section <a href="https://fastapi.tiangolo.com/benchmarks/" class="internal-link" target="_blank">Benchmarks</a>.
  345. ## Optional Dependencies
  346. Used by Pydantic:
  347. * <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email_validator</code></a> - for email validation.
  348. * <a href="https://docs.pydantic.dev/latest/usage/pydantic_settings/" target="_blank"><code>pydantic-settings</code></a> - for settings management.
  349. * <a href="https://docs.pydantic.dev/latest/usage/types/extra_types/extra_types/" target="_blank"><code>pydantic-extra-types</code></a> - for extra types to be used with Pydantic.
  350. Used by Starlette:
  351. * <a href="https://www.python-httpx.org" target="_blank"><code>httpx</code></a> - Required if you want to use the `TestClient`.
  352. * <a href="https://jinja.palletsprojects.com" target="_blank"><code>jinja2</code></a> - Required if you want to use the default template configuration.
  353. * <a href="https://andrew-d.github.io/python-multipart/" target="_blank"><code>python-multipart</code></a> - Required if you want to support form <abbr title="converting the string that comes from an HTTP request into Python data">"parsing"</abbr>, with `request.form()`.
  354. * <a href="https://pythonhosted.org/itsdangerous/" target="_blank"><code>itsdangerous</code></a> - Required for `SessionMiddleware` support.
  355. * <a href="https://pyyaml.org/wiki/PyYAMLDocumentation" target="_blank"><code>pyyaml</code></a> - Required for Starlette's `SchemaGenerator` support (you probably don't need it with FastAPI).
  356. * <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - Required if you want to use `UJSONResponse`.
  357. Used by FastAPI / Starlette:
  358. * <a href="https://www.uvicorn.org" target="_blank"><code>uvicorn</code></a> - for the server that loads and serves your application.
  359. * <a href="https://github.com/ijl/orjson" target="_blank"><code>orjson</code></a> - Required if you want to use `ORJSONResponse`.
  360. You can install all of these with `pip install "fastapi[all]"`.
  361. ## License
  362. This project is licensed under the terms of the MIT license.