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@@ -2,6 +2,14 @@
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||||
|
||||
## Latest changes
|
||||
|
||||
## 0.53.2
|
||||
|
||||
* Fix automatic embedding of body fields for dependencies and sub-dependencies. Original PR [#1079](https://github.com/tiangolo/fastapi/pull/1079) by [@Toad2186](https://github.com/Toad2186).
|
||||
* Fix dependency overrides in WebSocket testing. PR [#1122](https://github.com/tiangolo/fastapi/pull/1122) by [@amitlissack](https://github.com/amitlissack).
|
||||
* Fix docs script to ensure languages are always sorted. PR [#1189](https://github.com/tiangolo/fastapi/pull/1189).
|
||||
* Start translations for Chinese. PR [#1187](https://github.com/tiangolo/fastapi/pull/1187) by [@RunningIkkyu](https://github.com/RunningIkkyu).
|
||||
* Add docs for [Schema Extra - Example](https://fastapi.tiangolo.com/tutorial/schema-extra-example/). PR [#1185](https://github.com/tiangolo/fastapi/pull/1185).
|
||||
|
||||
## 0.53.1
|
||||
|
||||
* Fix included example after translations refactor. PR [#1182](https://github.com/tiangolo/fastapi/pull/1182).
|
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|
||||
@@ -35,37 +35,11 @@ You can then use `Field` with model attributes:
|
||||
!!! tip
|
||||
Notice how each model's attribute with a type, default value and `Field` has the same structure as a *path operation function's* parameter, with `Field` instead of `Path`, `Query` and `Body`.
|
||||
|
||||
## JSON Schema extras
|
||||
## Add extra information
|
||||
|
||||
In `Field`, `Path`, `Query`, `Body` and others you'll see later, you can declare extra parameters apart from those described before.
|
||||
You can declare extra information in `Field`, `Query`, `Body`, etc. And it will be included in the generated JSON Schema.
|
||||
|
||||
Those parameters will be added as-is to the output JSON Schema.
|
||||
|
||||
If you know JSON Schema and want to add extra information apart from what we have discussed here, you can pass that as extra keyword arguments.
|
||||
|
||||
!!! warning
|
||||
Have in mind that extra parameters passed won't add any validation, only annotation, for documentation purposes.
|
||||
|
||||
For example, you can use that functionality to pass an <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.3.md#fixed-fields-20" class="external-link" target="_blank">example</a> for a body request:
|
||||
|
||||
```Python hl_lines="20 21 22 23 24 25"
|
||||
{!../../../docs_src/body_fields/tutorial002.py!}
|
||||
```
|
||||
|
||||
Alternately, you can provide these extras on a per-field basis by using additional keyword arguments to `Field`:
|
||||
|
||||
```Python hl_lines="2 8 9 10 11"
|
||||
{!../../../docs_src/body_fields/tutorial003.py!}
|
||||
```
|
||||
|
||||
Either way, in the `/docs` it would look like this:
|
||||
|
||||
<img src="/img/tutorial/body-fields/image01.png">
|
||||
|
||||
!!! note "Technical Details"
|
||||
JSON Schema defines a field <a href="https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.5" class="external-link" target="_blank">`examples`</a> in the most recent versions, but OpenAPI is based on an older version of JSON Schema that didn't have `examples`.
|
||||
|
||||
So, OpenAPI defines its own <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.3.md#fixed-fields-20" class="external-link" target="_blank">`example`</a> for the same purpose (as `example`, not `examples`), and that's what is used by the docs UI (using Swagger UI).
|
||||
You will learn more about it later to declare examples examples.
|
||||
|
||||
## Recap
|
||||
|
||||
|
||||
58
docs/en/docs/tutorial/schema-extra-example.md
Normal file
58
docs/en/docs/tutorial/schema-extra-example.md
Normal file
@@ -0,0 +1,58 @@
|
||||
# Schema Extra - Example
|
||||
|
||||
You can define extra information to go in JSON Schema.
|
||||
|
||||
A common use case is to add an `example` that will be shown in the docs.
|
||||
|
||||
There are several ways you can declare extra JSON Schema information.
|
||||
|
||||
## Pydantic `schema_extra`
|
||||
|
||||
You can declare an example for a Pydantic model using `Config` and `schema_extra`, as described in <a href="https://pydantic-docs.helpmanual.io/usage/schema/#schema-customization" class="external-link" target="_blank">Pydantic's docs: Schema customization</a>:
|
||||
|
||||
```Python hl_lines="13 14 15 16 17 18 19 20 21"
|
||||
{!../../../docs_src/schema_extra_example/tutorial001.py!}
|
||||
```
|
||||
|
||||
That extra info will be added as-is to the output JSON Schema.
|
||||
|
||||
## `Field` additional arguments
|
||||
|
||||
In `Field`, `Path`, `Query`, `Body` and others you'll see later, you can also declare extra info for the JSON Schema by passing any other arbitrary arguments to the function, for example, to add an `example`:
|
||||
|
||||
```Python hl_lines="2 8 9 10 11"
|
||||
{!../../../docs_src/schema_extra_example/tutorial002.py!}
|
||||
```
|
||||
|
||||
!!! warning
|
||||
Have in mind that those extra arguments passed won't add any validation, only annotation, for documentation purposes.
|
||||
|
||||
## `Body` additional arguments
|
||||
|
||||
The same way you can pass extra info to `Field`, you can do the same with `Path`, `Query`, `Body`, etc.
|
||||
|
||||
For example, you can pass an `example` for a body request to `Body`:
|
||||
|
||||
```Python hl_lines="20 21 22 23 24 25"
|
||||
{!../../../docs_src/schema_extra_example/tutorial003.py!}
|
||||
```
|
||||
|
||||
## Example in the docs UI
|
||||
|
||||
With any of the methods above it would look like this in the `/docs`:
|
||||
|
||||
<img src="/img/tutorial/body-fields/image01.png">
|
||||
|
||||
## Technical Details
|
||||
|
||||
About `example` vs `examples`...
|
||||
|
||||
JSON Schema defines a field <a href="https://json-schema.org/draft/2019-09/json-schema-validation.html#rfc.section.9.5" class="external-link" target="_blank">`examples`</a> in the most recent versions, but OpenAPI is based on an older version of JSON Schema that didn't have `examples`.
|
||||
|
||||
So, OpenAPI defined its own <a href="https://github.com/OAI/OpenAPI-Specification/blob/master/versions/3.0.3.md#fixed-fields-20" class="external-link" target="_blank">`example`</a> for the same purpose (as `example`, not `examples`), and that's what is used by the docs UI (using Swagger UI).
|
||||
|
||||
So, although `example` is not part of JSON Schema, it is part of OpenAPI, and that's what will be used by the docs UI.
|
||||
|
||||
## Other info
|
||||
|
||||
The same way, you could add your own custom extra info that would be added to the JSON Schema for each model, for example to customize a frontend user interface, etc.
|
||||
@@ -20,6 +20,7 @@ nav:
|
||||
- Languages:
|
||||
- en: /
|
||||
- es: /es/
|
||||
- zh: /zh/
|
||||
- features.md
|
||||
- python-types.md
|
||||
- Tutorial - User Guide:
|
||||
@@ -33,6 +34,7 @@ nav:
|
||||
- tutorial/body-multiple-params.md
|
||||
- tutorial/body-fields.md
|
||||
- tutorial/body-nested-models.md
|
||||
- tutorial/schema-extra-example.md
|
||||
- tutorial/extra-data-types.md
|
||||
- tutorial/cookie-params.md
|
||||
- tutorial/header-params.md
|
||||
|
||||
@@ -20,6 +20,7 @@ nav:
|
||||
- Languages:
|
||||
- en: /
|
||||
- es: /es/
|
||||
- zh: /zh/
|
||||
markdown_extensions:
|
||||
- toc:
|
||||
permalink: true
|
||||
|
||||
441
docs/zh/docs/index.md
Normal file
441
docs/zh/docs/index.md
Normal file
@@ -0,0 +1,441 @@
|
||||
|
||||
{!../../../docs/missing-translation.md!}
|
||||
|
||||
|
||||
<p align="center">
|
||||
<a href="https://fastapi.tiangolo.com"><img src="https://fastapi.tiangolo.com/img/logo-margin/logo-teal.png" alt="FastAPI"></a>
|
||||
</p>
|
||||
<p align="center">
|
||||
<em>FastAPI framework, high performance, easy to learn, fast to code, ready for production</em>
|
||||
</p>
|
||||
<p align="center">
|
||||
<a href="https://travis-ci.com/tiangolo/fastapi" target="_blank">
|
||||
<img src="https://travis-ci.com/tiangolo/fastapi.svg?branch=master" alt="Build Status">
|
||||
</a>
|
||||
<a href="https://codecov.io/gh/tiangolo/fastapi" target="_blank">
|
||||
<img src="https://img.shields.io/codecov/c/github/tiangolo/fastapi" alt="Coverage">
|
||||
</a>
|
||||
<a href="https://pypi.org/project/fastapi" target="_blank">
|
||||
<img src="https://badge.fury.io/py/fastapi.svg" alt="Package version">
|
||||
</a>
|
||||
<a href="https://gitter.im/tiangolo/fastapi?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge" target="_blank">
|
||||
<img src="https://badges.gitter.im/tiangolo/fastapi.svg" alt="Join the chat at https://gitter.im/tiangolo/fastapi">
|
||||
</a>
|
||||
</p>
|
||||
|
||||
---
|
||||
|
||||
**Documentation**: <a href="https://fastapi.tiangolo.com" target="_blank">https://fastapi.tiangolo.com</a>
|
||||
|
||||
**Source Code**: <a href="https://github.com/tiangolo/fastapi" target="_blank">https://github.com/tiangolo/fastapi</a>
|
||||
|
||||
---
|
||||
|
||||
FastAPI is a modern, fast (high-performance), web framework for building APIs with Python 3.6+ based on standard Python type hints.
|
||||
|
||||
The key features are:
|
||||
|
||||
* **Fast**: Very high performance, on par with **NodeJS** and **Go** (thanks to Starlette and Pydantic). [One of the fastest Python frameworks available](#performance).
|
||||
|
||||
* **Fast to code**: Increase the speed to develop features by about 200% to 300% *.
|
||||
* **Fewer bugs**: Reduce about 40% of human (developer) induced errors. *
|
||||
* **Intuitive**: Great editor support. <abbr title="also known as auto-complete, autocompletion, IntelliSense">Completion</abbr> everywhere. Less time debugging.
|
||||
* **Easy**: Designed to be easy to use and learn. Less time reading docs.
|
||||
* **Short**: Minimize code duplication. Multiple features from each parameter declaration. Fewer bugs.
|
||||
* **Robust**: Get production-ready code. With automatic interactive documentation.
|
||||
* **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="http://json-schema.org/" class="external-link" target="_blank">JSON Schema</a>.
|
||||
|
||||
<small>* estimation based on tests on an internal development team, building production applications.</small>
|
||||
|
||||
## Opinions
|
||||
|
||||
"*[...] 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.*"
|
||||
|
||||
<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>
|
||||
|
||||
---
|
||||
|
||||
"*I’m over the moon excited about **FastAPI**. It’s so fun!*"
|
||||
|
||||
<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>
|
||||
|
||||
---
|
||||
|
||||
"*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: right; margin-right: 10%;">Timothy Crosley - <strong><a href="http://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>
|
||||
|
||||
---
|
||||
|
||||
"*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 [...]*"
|
||||
|
||||
"*We've switched over to **FastAPI** for our **APIs** [...] I think you'll like it [...]*"
|
||||
|
||||
<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>
|
||||
|
||||
---
|
||||
|
||||
"*We adopted the **FastAPI** library to spawn a **REST** server that can be queried to obtain **predictions**. [for Ludwig]*"
|
||||
|
||||
<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>
|
||||
|
||||
---
|
||||
|
||||
## **Typer**, the FastAPI of CLIs
|
||||
|
||||
<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>
|
||||
|
||||
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>.
|
||||
|
||||
**Typer** is FastAPI's little sibling. And it's intended to be the **FastAPI of CLIs**. ⌨️ 🚀
|
||||
|
||||
## Requirements
|
||||
|
||||
Python 3.6+
|
||||
|
||||
FastAPI stands on the shoulders of giants:
|
||||
|
||||
* <a href="https://www.starlette.io/" class="external-link" target="_blank">Starlette</a> for the web parts.
|
||||
* <a href="https://pydantic-docs.helpmanual.io/" class="external-link" target="_blank">Pydantic</a> for the data parts.
|
||||
|
||||
## Installation
|
||||
|
||||
<div class="termy">
|
||||
|
||||
```console
|
||||
$ pip install fastapi
|
||||
|
||||
---> 100%
|
||||
```
|
||||
|
||||
</div>
|
||||
|
||||
You will also need an ASGI server, for production such as <a href="http://www.uvicorn.org" class="external-link" target="_blank">Uvicorn</a> or <a href="https://gitlab.com/pgjones/hypercorn" class="external-link" target="_blank">Hypercorn</a>.
|
||||
|
||||
<div class="termy">
|
||||
|
||||
```console
|
||||
$ pip install uvicorn
|
||||
|
||||
---> 100%
|
||||
```
|
||||
|
||||
</div>
|
||||
|
||||
## Example
|
||||
|
||||
### Create it
|
||||
|
||||
* Create a file `main.py` with:
|
||||
|
||||
```Python
|
||||
from fastapi import FastAPI
|
||||
|
||||
app = FastAPI()
|
||||
|
||||
|
||||
@app.get("/")
|
||||
def read_root():
|
||||
return {"Hello": "World"}
|
||||
|
||||
|
||||
@app.get("/items/{item_id}")
|
||||
def read_item(item_id: int, q: str = None):
|
||||
return {"item_id": item_id, "q": q}
|
||||
```
|
||||
|
||||
<details markdown="1">
|
||||
<summary>Or use <code>async def</code>...</summary>
|
||||
|
||||
If your code uses `async` / `await`, use `async def`:
|
||||
|
||||
```Python hl_lines="7 12"
|
||||
from fastapi import FastAPI
|
||||
|
||||
app = FastAPI()
|
||||
|
||||
|
||||
@app.get("/")
|
||||
async def read_root():
|
||||
return {"Hello": "World"}
|
||||
|
||||
|
||||
@app.get("/items/{item_id}")
|
||||
async def read_item(item_id: int, q: str = None):
|
||||
return {"item_id": item_id, "q": q}
|
||||
```
|
||||
|
||||
**Note**:
|
||||
|
||||
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>.
|
||||
|
||||
</details>
|
||||
|
||||
### Run it
|
||||
|
||||
Run the server with:
|
||||
|
||||
<div class="termy">
|
||||
|
||||
```console
|
||||
$ uvicorn main:app --reload
|
||||
|
||||
<span style="color: green;">INFO</span>: Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
|
||||
<span style="color: green;">INFO</span>: Started reloader process [28720]
|
||||
<span style="color: green;">INFO</span>: Started server process [28722]
|
||||
<span style="color: green;">INFO</span>: Waiting for application startup.
|
||||
<span style="color: green;">INFO</span>: Application startup complete.
|
||||
```
|
||||
|
||||
</div>
|
||||
|
||||
<details markdown="1">
|
||||
<summary>About the command <code>uvicorn main:app --reload</code>...</summary>
|
||||
|
||||
The command `uvicorn main:app` refers to:
|
||||
|
||||
* `main`: the file `main.py` (the Python "module").
|
||||
* `app`: the object created inside of `main.py` with the line `app = FastAPI()`.
|
||||
* `--reload`: make the server restart after code changes. Only do this for development.
|
||||
|
||||
</details>
|
||||
|
||||
### Check it
|
||||
|
||||
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>.
|
||||
|
||||
You will see the JSON response as:
|
||||
|
||||
```JSON
|
||||
{"item_id": 5, "q": "somequery"}
|
||||
```
|
||||
|
||||
You already created an API that:
|
||||
|
||||
* Receives HTTP requests in the _paths_ `/` and `/items/{item_id}`.
|
||||
* Both _paths_ take `GET` <em>operations</em> (also known as HTTP _methods_).
|
||||
* The _path_ `/items/{item_id}` has a _path parameter_ `item_id` that should be an `int`.
|
||||
* The _path_ `/items/{item_id}` has an optional `str` _query parameter_ `q`.
|
||||
|
||||
### Interactive API docs
|
||||
|
||||
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>.
|
||||
|
||||
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>):
|
||||
|
||||
|
||||
|
||||
### Alternative API docs
|
||||
|
||||
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>.
|
||||
|
||||
You will see the alternative automatic documentation (provided by <a href="https://github.com/Rebilly/ReDoc" class="external-link" target="_blank">ReDoc</a>):
|
||||
|
||||
|
||||
|
||||
## Example upgrade
|
||||
|
||||
Now modify the file `main.py` to receive a body from a `PUT` request.
|
||||
|
||||
Declare the body using standard Python types, thanks to Pydantic.
|
||||
|
||||
```Python hl_lines="2 7 8 9 10 23 24 25"
|
||||
from fastapi import FastAPI
|
||||
from pydantic import BaseModel
|
||||
|
||||
app = FastAPI()
|
||||
|
||||
|
||||
class Item(BaseModel):
|
||||
name: str
|
||||
price: float
|
||||
is_offer: bool = None
|
||||
|
||||
|
||||
@app.get("/")
|
||||
def read_root():
|
||||
return {"Hello": "World"}
|
||||
|
||||
|
||||
@app.get("/items/{item_id}")
|
||||
def read_item(item_id: int, q: str = None):
|
||||
return {"item_id": item_id, "q": q}
|
||||
|
||||
|
||||
@app.put("/items/{item_id}")
|
||||
def update_item(item_id: int, item: Item):
|
||||
return {"item_name": item.name, "item_id": item_id}
|
||||
```
|
||||
|
||||
The server should reload automatically (because you added `--reload` to the `uvicorn` command above).
|
||||
|
||||
### Interactive API docs upgrade
|
||||
|
||||
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>.
|
||||
|
||||
* The interactive API documentation will be automatically updated, including the new body:
|
||||
|
||||
|
||||
|
||||
* Click on the button "Try it out", it allows you to fill the parameters and directly interact with the API:
|
||||
|
||||
|
||||
|
||||
* 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:
|
||||
|
||||
|
||||
|
||||
### Alternative API docs upgrade
|
||||
|
||||
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>.
|
||||
|
||||
* The alternative documentation will also reflect the new query parameter and body:
|
||||
|
||||
|
||||
|
||||
### Recap
|
||||
|
||||
In summary, you declare **once** the types of parameters, body, etc. as function parameters.
|
||||
|
||||
You do that with standard modern Python types.
|
||||
|
||||
You don't have to learn a new syntax, the methods or classes of a specific library, etc.
|
||||
|
||||
Just standard **Python 3.6+**.
|
||||
|
||||
For example, for an `int`:
|
||||
|
||||
```Python
|
||||
item_id: int
|
||||
```
|
||||
|
||||
or for a more complex `Item` model:
|
||||
|
||||
```Python
|
||||
item: Item
|
||||
```
|
||||
|
||||
...and with that single declaration you get:
|
||||
|
||||
* Editor support, including:
|
||||
* Completion.
|
||||
* Type checks.
|
||||
* Validation of data:
|
||||
* Automatic and clear errors when the data is invalid.
|
||||
* Validation even for deeply nested JSON objects.
|
||||
* <abbr title="also known as: serialization, parsing, marshalling">Conversion</abbr> of input data: coming from the network to Python data and types. Reading from:
|
||||
* JSON.
|
||||
* Path parameters.
|
||||
* Query parameters.
|
||||
* Cookies.
|
||||
* Headers.
|
||||
* Forms.
|
||||
* Files.
|
||||
* <abbr title="also known as: serialization, parsing, marshalling">Conversion</abbr> of output data: converting from Python data and types to network data (as JSON):
|
||||
* Convert Python types (`str`, `int`, `float`, `bool`, `list`, etc).
|
||||
* `datetime` objects.
|
||||
* `UUID` objects.
|
||||
* Database models.
|
||||
* ...and many more.
|
||||
* Automatic interactive API documentation, including 2 alternative user interfaces:
|
||||
* Swagger UI.
|
||||
* ReDoc.
|
||||
|
||||
---
|
||||
|
||||
Coming back to the previous code example, **FastAPI** will:
|
||||
|
||||
* Validate that there is an `item_id` in the path for `GET` and `PUT` requests.
|
||||
* Validate that the `item_id` is of type `int` for `GET` and `PUT` requests.
|
||||
* If it is not, the client will see a useful, clear error.
|
||||
* 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.
|
||||
* As the `q` parameter is declared with `= None`, it is optional.
|
||||
* Without the `None` it would be required (as is the body in the case with `PUT`).
|
||||
* For `PUT` requests to `/items/{item_id}`, Read the body as JSON:
|
||||
* Check that it has a required attribute `name` that should be a `str`.
|
||||
* Check that it has a required attribute `price` that has to be a `float`.
|
||||
* Check that it has an optional attribute `is_offer`, that should be a `bool`, if present.
|
||||
* All this would also work for deeply nested JSON objects.
|
||||
* Convert from and to JSON automatically.
|
||||
* Document everything with OpenAPI, that can be used by:
|
||||
* Interactive documentation systems.
|
||||
* Automatic client code generation systems, for many languages.
|
||||
* Provide 2 interactive documentation web interfaces directly.
|
||||
|
||||
---
|
||||
|
||||
We just scratched the surface, but you already get the idea of how it all works.
|
||||
|
||||
Try changing the line with:
|
||||
|
||||
```Python
|
||||
return {"item_name": item.name, "item_id": item_id}
|
||||
```
|
||||
|
||||
...from:
|
||||
|
||||
```Python
|
||||
... "item_name": item.name ...
|
||||
```
|
||||
|
||||
...to:
|
||||
|
||||
```Python
|
||||
... "item_price": item.price ...
|
||||
```
|
||||
|
||||
...and see how your editor will auto-complete the attributes and know their types:
|
||||
|
||||
|
||||
|
||||
For a more complete example including more features, see the <a href="https://fastapi.tiangolo.com/tutorial/">Tutorial - User Guide</a>.
|
||||
|
||||
**Spoiler alert**: the tutorial - user guide includes:
|
||||
|
||||
* Declaration of **parameters** from other different places as: **headers**, **cookies**, **form fields** and **files**.
|
||||
* How to set **validation constraints** as `maximum_length` or `regex`.
|
||||
* A very powerful and easy to use **<abbr title="also known as components, resources, providers, services, injectables">Dependency Injection</abbr>** system.
|
||||
* Security and authentication, including support for **OAuth2** with **JWT tokens** and **HTTP Basic** auth.
|
||||
* More advanced (but equally easy) techniques for declaring **deeply nested JSON models** (thanks to Pydantic).
|
||||
* Many extra features (thanks to Starlette) as:
|
||||
* **WebSockets**
|
||||
* **GraphQL**
|
||||
* extremely easy tests based on `requests` and `pytest`
|
||||
* **CORS**
|
||||
* **Cookie Sessions**
|
||||
* ...and more.
|
||||
|
||||
## Performance
|
||||
|
||||
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). (*)
|
||||
|
||||
To understand more about it, see the section <a href="https://fastapi.tiangolo.com/benchmarks/" class="internal-link" target="_blank">Benchmarks</a>.
|
||||
|
||||
## Optional Dependencies
|
||||
|
||||
Used by Pydantic:
|
||||
|
||||
* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - for faster JSON <abbr title="converting the string that comes from an HTTP request into Python data">"parsing"</abbr>.
|
||||
* <a href="https://github.com/JoshData/python-email-validator" target="_blank"><code>email_validator</code></a> - for email validation.
|
||||
|
||||
Used by Starlette:
|
||||
|
||||
* <a href="http://docs.python-requests.org" target="_blank"><code>requests</code></a> - Required if you want to use the `TestClient`.
|
||||
* <a href="https://github.com/Tinche/aiofiles" target="_blank"><code>aiofiles</code></a> - Required if you want to use `FileResponse` or `StaticFiles`.
|
||||
* <a href="http://jinja.pocoo.org" target="_blank"><code>jinja2</code></a> - Required if you want to use the default template configuration.
|
||||
* <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()`.
|
||||
* <a href="https://pythonhosted.org/itsdangerous/" target="_blank"><code>itsdangerous</code></a> - Required for `SessionMiddleware` support.
|
||||
* <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).
|
||||
* <a href="https://graphene-python.org/" target="_blank"><code>graphene</code></a> - Required for `GraphQLApp` support.
|
||||
* <a href="https://github.com/esnme/ultrajson" target="_blank"><code>ujson</code></a> - Required if you want to use `UJSONResponse`.
|
||||
|
||||
Used by FastAPI / Starlette:
|
||||
|
||||
* <a href="http://www.uvicorn.org" target="_blank"><code>uvicorn</code></a> - for the server that loads and serves your application.
|
||||
* <a href="https://github.com/ijl/orjson" target="_blank"><code>orjson</code></a> - Required if you want to use `ORJSONResponse`.
|
||||
|
||||
You can install all of these with `pip install fastapi[all]`.
|
||||
|
||||
## License
|
||||
|
||||
This project is licensed under the terms of the MIT license.
|
||||
61
docs/zh/mkdocs.yml
Normal file
61
docs/zh/mkdocs.yml
Normal file
@@ -0,0 +1,61 @@
|
||||
site_name: FastAPI
|
||||
site_description: FastAPI framework, high performance, easy to learn, fast to code, ready for production
|
||||
site_url: https://fastapi.tiangolo.com/zh/
|
||||
theme:
|
||||
name: material
|
||||
palette:
|
||||
primary: teal
|
||||
accent: amber
|
||||
logo: https://fastapi.tiangolo.com/img/icon-white.svg
|
||||
favicon: https://fastapi.tiangolo.com/img/favicon.png
|
||||
language: zh
|
||||
repo_name: tiangolo/fastapi
|
||||
repo_url: https://github.com/tiangolo/fastapi
|
||||
edit_uri: ''
|
||||
google_analytics:
|
||||
- UA-133183413-1
|
||||
- auto
|
||||
nav:
|
||||
- FastAPI: index.md
|
||||
- Languages:
|
||||
- en: /
|
||||
- es: /es/
|
||||
- zh: /zh/
|
||||
markdown_extensions:
|
||||
- toc:
|
||||
permalink: true
|
||||
- markdown.extensions.codehilite:
|
||||
guess_lang: false
|
||||
- markdown_include.include:
|
||||
base_path: docs
|
||||
- admonition
|
||||
- codehilite
|
||||
- extra
|
||||
- pymdownx.superfences:
|
||||
custom_fences:
|
||||
- name: mermaid
|
||||
class: mermaid
|
||||
format: !!python/name:pymdownx.superfences.fence_div_format ''
|
||||
extra:
|
||||
social:
|
||||
- type: github
|
||||
link: https://github.com/tiangolo/typer
|
||||
- type: twitter
|
||||
link: https://twitter.com/tiangolo
|
||||
- type: linkedin
|
||||
link: https://www.linkedin.com/in/tiangolo
|
||||
- type: rss
|
||||
link: https://dev.to/tiangolo
|
||||
- type: medium
|
||||
link: https://medium.com/@tiangolo
|
||||
- type: globe
|
||||
link: https://tiangolo.com
|
||||
extra_css:
|
||||
- https://fastapi.tiangolo.com/css/termynal.css
|
||||
- https://fastapi.tiangolo.com/css/custom.css
|
||||
extra_javascript:
|
||||
- https://unpkg.com/mermaid@8.4.6/dist/mermaid.min.js
|
||||
- https://fastapi.tiangolo.com/js/termynal.js
|
||||
- https://fastapi.tiangolo.com/js/custom.js
|
||||
- https://fastapi.tiangolo.com/js/chat.js
|
||||
- https://sidecar.gitter.im/dist/sidecar.v1.js
|
||||
27
docs_src/schema_extra_example/tutorial001.py
Normal file
27
docs_src/schema_extra_example/tutorial001.py
Normal file
@@ -0,0 +1,27 @@
|
||||
from fastapi import FastAPI
|
||||
from pydantic import BaseModel
|
||||
|
||||
app = FastAPI()
|
||||
|
||||
|
||||
class Item(BaseModel):
|
||||
name: str
|
||||
description: str = None
|
||||
price: float
|
||||
tax: float = None
|
||||
|
||||
class Config:
|
||||
schema_extra = {
|
||||
"example": {
|
||||
"name": "Foo",
|
||||
"description": "A very nice Item",
|
||||
"price": 35.4,
|
||||
"tax": 3.2,
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
@app.put("/items/{item_id}")
|
||||
async def update_item(*, item_id: int, item: Item):
|
||||
results = {"item_id": item_id, "item": item}
|
||||
return results
|
||||
@@ -1,6 +1,6 @@
|
||||
"""FastAPI framework, high performance, easy to learn, fast to code, ready for production"""
|
||||
|
||||
__version__ = "0.53.1"
|
||||
__version__ = "0.53.2"
|
||||
|
||||
from starlette import status
|
||||
|
||||
|
||||
@@ -704,8 +704,14 @@ def get_body_field(*, dependant: Dependant, name: str) -> Optional[ModelField]:
|
||||
first_param = flat_dependant.body_params[0]
|
||||
field_info = get_field_info(first_param)
|
||||
embed = getattr(field_info, "embed", None)
|
||||
if len(flat_dependant.body_params) == 1 and not embed:
|
||||
body_param_names_set = set([param.name for param in flat_dependant.body_params])
|
||||
if len(body_param_names_set) == 1 and not embed:
|
||||
return get_schema_compatible_field(field=first_param)
|
||||
# If one field requires to embed, all have to be embedded
|
||||
# in case a sub-dependency is evaluated with a single unique body field
|
||||
# That is combined (embedded) with other body fields
|
||||
for param in flat_dependant.body_params:
|
||||
setattr(get_field_info(param), "embed", True)
|
||||
model_name = "Body_" + name
|
||||
BodyModel = create_model(model_name)
|
||||
for f in flat_dependant.body_params:
|
||||
|
||||
@@ -498,7 +498,12 @@ class APIRouter(routing.Router):
|
||||
def add_api_websocket_route(
|
||||
self, path: str, endpoint: Callable, name: str = None
|
||||
) -> None:
|
||||
route = APIWebSocketRoute(path, endpoint=endpoint, name=name)
|
||||
route = APIWebSocketRoute(
|
||||
path,
|
||||
endpoint=endpoint,
|
||||
name=name,
|
||||
dependency_overrides_provider=self.dependency_overrides_provider,
|
||||
)
|
||||
self.routes.append(route)
|
||||
|
||||
def websocket(self, path: str, name: str = None) -> Callable:
|
||||
|
||||
@@ -22,6 +22,10 @@ missing_translation_snippet = """
|
||||
docs_path = Path("docs")
|
||||
|
||||
|
||||
def get_lang_paths():
|
||||
return sorted(docs_path.iterdir())
|
||||
|
||||
|
||||
def lang_callback(lang: Optional[str]):
|
||||
if lang is None:
|
||||
return
|
||||
@@ -34,7 +38,7 @@ def lang_callback(lang: Optional[str]):
|
||||
|
||||
def complete_existing_lang(incomplete: str):
|
||||
lang_path: Path
|
||||
for lang_path in docs_path.iterdir():
|
||||
for lang_path in get_lang_paths():
|
||||
if lang_path.is_dir() and lang_path.name.startswith(incomplete):
|
||||
yield lang_path.name
|
||||
|
||||
@@ -198,7 +202,7 @@ def build_all():
|
||||
typer.echo(f"Building docs for: en")
|
||||
mkdocs.commands.build.build(mkdocs.config.load_config(site_dir=str(site_path)))
|
||||
os.chdir(current_dir)
|
||||
for lang in docs_path.iterdir():
|
||||
for lang in get_lang_paths():
|
||||
if lang == en_build_path or not lang.is_dir():
|
||||
continue
|
||||
build_lang(lang.name)
|
||||
@@ -220,7 +224,7 @@ def update_languages(
|
||||
mkdocs.yml files (for all the languages).
|
||||
"""
|
||||
if lang is None:
|
||||
for lang_path in docs_path.iterdir():
|
||||
for lang_path in get_lang_paths():
|
||||
if lang_path.is_dir():
|
||||
typer.echo(f"Updating {lang_path.name}")
|
||||
update_config(lang_path.name)
|
||||
@@ -278,7 +282,7 @@ def update_config(lang: str):
|
||||
config_path = lang_path / mkdocs_name
|
||||
config: dict = mkdocs.utils.yaml_load(config_path.read_text(encoding="utf-8"))
|
||||
languages = [{"en": "/"}]
|
||||
for lang in docs_path.iterdir():
|
||||
for lang in get_lang_paths():
|
||||
if lang.name == "en" or not lang.is_dir():
|
||||
continue
|
||||
name = lang.name
|
||||
|
||||
232
tests/test_dependency_duplicates.py
Normal file
232
tests/test_dependency_duplicates.py
Normal file
@@ -0,0 +1,232 @@
|
||||
from typing import List
|
||||
|
||||
from fastapi import Depends, FastAPI
|
||||
from fastapi.testclient import TestClient
|
||||
from pydantic import BaseModel
|
||||
|
||||
app = FastAPI()
|
||||
|
||||
client = TestClient(app)
|
||||
|
||||
|
||||
class Item(BaseModel):
|
||||
data: str
|
||||
|
||||
|
||||
def duplicate_dependency(item: Item):
|
||||
return item
|
||||
|
||||
|
||||
def dependency(item2: Item):
|
||||
return item2
|
||||
|
||||
|
||||
def sub_duplicate_dependency(
|
||||
item: Item, sub_item: Item = Depends(duplicate_dependency)
|
||||
):
|
||||
return [item, sub_item]
|
||||
|
||||
|
||||
@app.post("/with-duplicates")
|
||||
async def with_duplicates(item: Item, item2: Item = Depends(duplicate_dependency)):
|
||||
return [item, item2]
|
||||
|
||||
|
||||
@app.post("/no-duplicates")
|
||||
async def no_duplicates(item: Item, item2: Item = Depends(dependency)):
|
||||
return [item, item2]
|
||||
|
||||
|
||||
@app.post("/with-duplicates-sub")
|
||||
async def no_duplicates_sub(
|
||||
item: Item, sub_items: List[Item] = Depends(sub_duplicate_dependency)
|
||||
):
|
||||
return [item, sub_items]
|
||||
|
||||
|
||||
openapi_schema = {
|
||||
"openapi": "3.0.2",
|
||||
"info": {"title": "FastAPI", "version": "0.1.0"},
|
||||
"paths": {
|
||||
"/with-duplicates": {
|
||||
"post": {
|
||||
"summary": "With Duplicates",
|
||||
"operationId": "with_duplicates_with_duplicates_post",
|
||||
"requestBody": {
|
||||
"content": {
|
||||
"application/json": {
|
||||
"schema": {"$ref": "#/components/schemas/Item"}
|
||||
}
|
||||
},
|
||||
"required": True,
|
||||
},
|
||||
"responses": {
|
||||
"200": {
|
||||
"description": "Successful Response",
|
||||
"content": {"application/json": {"schema": {}}},
|
||||
},
|
||||
"422": {
|
||||
"description": "Validation Error",
|
||||
"content": {
|
||||
"application/json": {
|
||||
"schema": {
|
||||
"$ref": "#/components/schemas/HTTPValidationError"
|
||||
}
|
||||
}
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
},
|
||||
"/no-duplicates": {
|
||||
"post": {
|
||||
"summary": "No Duplicates",
|
||||
"operationId": "no_duplicates_no_duplicates_post",
|
||||
"requestBody": {
|
||||
"content": {
|
||||
"application/json": {
|
||||
"schema": {
|
||||
"$ref": "#/components/schemas/Body_no_duplicates_no_duplicates_post"
|
||||
}
|
||||
}
|
||||
},
|
||||
"required": True,
|
||||
},
|
||||
"responses": {
|
||||
"200": {
|
||||
"description": "Successful Response",
|
||||
"content": {"application/json": {"schema": {}}},
|
||||
},
|
||||
"422": {
|
||||
"description": "Validation Error",
|
||||
"content": {
|
||||
"application/json": {
|
||||
"schema": {
|
||||
"$ref": "#/components/schemas/HTTPValidationError"
|
||||
}
|
||||
}
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
},
|
||||
"/with-duplicates-sub": {
|
||||
"post": {
|
||||
"summary": "No Duplicates Sub",
|
||||
"operationId": "no_duplicates_sub_with_duplicates_sub_post",
|
||||
"requestBody": {
|
||||
"content": {
|
||||
"application/json": {
|
||||
"schema": {"$ref": "#/components/schemas/Item"}
|
||||
}
|
||||
},
|
||||
"required": True,
|
||||
},
|
||||
"responses": {
|
||||
"200": {
|
||||
"description": "Successful Response",
|
||||
"content": {"application/json": {"schema": {}}},
|
||||
},
|
||||
"422": {
|
||||
"description": "Validation Error",
|
||||
"content": {
|
||||
"application/json": {
|
||||
"schema": {
|
||||
"$ref": "#/components/schemas/HTTPValidationError"
|
||||
}
|
||||
}
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
},
|
||||
},
|
||||
"components": {
|
||||
"schemas": {
|
||||
"Body_no_duplicates_no_duplicates_post": {
|
||||
"title": "Body_no_duplicates_no_duplicates_post",
|
||||
"required": ["item", "item2"],
|
||||
"type": "object",
|
||||
"properties": {
|
||||
"item": {"$ref": "#/components/schemas/Item"},
|
||||
"item2": {"$ref": "#/components/schemas/Item"},
|
||||
},
|
||||
},
|
||||
"HTTPValidationError": {
|
||||
"title": "HTTPValidationError",
|
||||
"type": "object",
|
||||
"properties": {
|
||||
"detail": {
|
||||
"title": "Detail",
|
||||
"type": "array",
|
||||
"items": {"$ref": "#/components/schemas/ValidationError"},
|
||||
}
|
||||
},
|
||||
},
|
||||
"Item": {
|
||||
"title": "Item",
|
||||
"required": ["data"],
|
||||
"type": "object",
|
||||
"properties": {"data": {"title": "Data", "type": "string"}},
|
||||
},
|
||||
"ValidationError": {
|
||||
"title": "ValidationError",
|
||||
"required": ["loc", "msg", "type"],
|
||||
"type": "object",
|
||||
"properties": {
|
||||
"loc": {
|
||||
"title": "Location",
|
||||
"type": "array",
|
||||
"items": {"type": "string"},
|
||||
},
|
||||
"msg": {"title": "Message", "type": "string"},
|
||||
"type": {"title": "Error Type", "type": "string"},
|
||||
},
|
||||
},
|
||||
}
|
||||
},
|
||||
}
|
||||
|
||||
|
||||
def test_openapi_schema():
|
||||
response = client.get("/openapi.json")
|
||||
assert response.status_code == 200
|
||||
assert response.json() == openapi_schema
|
||||
|
||||
|
||||
def test_no_duplicates_invalid():
|
||||
response = client.post("/no-duplicates", json={"item": {"data": "myitem"}})
|
||||
assert response.status_code == 422
|
||||
assert response.json() == {
|
||||
"detail": [
|
||||
{
|
||||
"loc": ["body", "item2"],
|
||||
"msg": "field required",
|
||||
"type": "value_error.missing",
|
||||
}
|
||||
]
|
||||
}
|
||||
|
||||
|
||||
def test_no_duplicates():
|
||||
response = client.post(
|
||||
"/no-duplicates",
|
||||
json={"item": {"data": "myitem"}, "item2": {"data": "myitem2"}},
|
||||
)
|
||||
assert response.status_code == 200
|
||||
assert response.json() == [{"data": "myitem"}, {"data": "myitem2"}]
|
||||
|
||||
|
||||
def test_duplicates():
|
||||
response = client.post("/with-duplicates", json={"data": "myitem"})
|
||||
assert response.status_code == 200
|
||||
assert response.json() == [{"data": "myitem"}, {"data": "myitem"}]
|
||||
|
||||
|
||||
def test_sub_duplicates():
|
||||
response = client.post("/with-duplicates-sub", json={"data": "myitem"})
|
||||
assert response.status_code == 200
|
||||
assert response.json() == [
|
||||
{"data": "myitem"},
|
||||
[{"data": "myitem"}, {"data": "myitem"}],
|
||||
]
|
||||
@@ -1,4 +1,4 @@
|
||||
from fastapi import APIRouter, FastAPI, WebSocket
|
||||
from fastapi import APIRouter, Depends, FastAPI, WebSocket
|
||||
from fastapi.testclient import TestClient
|
||||
|
||||
router = APIRouter()
|
||||
@@ -34,6 +34,19 @@ async def routerindex(websocket: WebSocket):
|
||||
await websocket.close()
|
||||
|
||||
|
||||
async def ws_dependency():
|
||||
return "Socket Dependency"
|
||||
|
||||
|
||||
@router.websocket("/router-ws-depends/")
|
||||
async def router_ws_decorator_depends(
|
||||
websocket: WebSocket, data=Depends(ws_dependency)
|
||||
):
|
||||
await websocket.accept()
|
||||
await websocket.send_text(data)
|
||||
await websocket.close()
|
||||
|
||||
|
||||
app.include_router(router)
|
||||
app.include_router(prefix_router, prefix="/prefix")
|
||||
|
||||
@@ -64,3 +77,16 @@ def test_router2():
|
||||
with client.websocket_connect("/router2") as websocket:
|
||||
data = websocket.receive_text()
|
||||
assert data == "Hello, router!"
|
||||
|
||||
|
||||
def test_router_ws_depends():
|
||||
client = TestClient(app)
|
||||
with client.websocket_connect("/router-ws-depends/") as websocket:
|
||||
assert websocket.receive_text() == "Socket Dependency"
|
||||
|
||||
|
||||
def test_router_ws_depends_with_override():
|
||||
client = TestClient(app)
|
||||
app.dependency_overrides[ws_dependency] = lambda: "Override"
|
||||
with client.websocket_connect("/router-ws-depends/") as websocket:
|
||||
assert websocket.receive_text() == "Override"
|
||||
|
||||
Reference in New Issue
Block a user