80 lines
2.4 KiB
Markdown
80 lines
2.4 KiB
Markdown
# Cookies
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Cookies are pieces of data which persist inside a user's browser. Sanic can
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both read and write cookies, which are stored as key-value pairs.
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## Reading cookies
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A user's cookies can be accessed `Request` object's `cookie` dictionary.
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```python
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from sanic.response import text
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@app.route("/cookie")
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async def test(request):
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test_cookie = request.cookies.get('test')
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return text("Test cookie set to: {}".format(test_cookie))
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```
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## Writing cookies
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When returning a response, cookies can be set on the `Response` object.
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```python
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from sanic.response import text
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@app.route("/cookie")
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async def test(request):
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response = text("There's a cookie up in this response")
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response.cookies['test'] = 'It worked!'
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response.cookies['test']['domain'] = '.gotta-go-fast.com'
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response.cookies['test']['httponly'] = True
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return response
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```
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## Deleting cookies
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Cookies can be removed semantically or explicitly.
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```python
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from sanic.response import text
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@app.route("/cookie")
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async def test(request):
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response = text("Time to eat some cookies muahaha")
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# This cookie will be set to expire in 0 seconds
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del response.cookies['kill_me']
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# This cookie will self destruct in 5 seconds
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response.cookies['short_life'] = 'Glad to be here'
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response.cookies['short_life']['max-age'] = 5
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del response.cookies['favorite_color']
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# This cookie will remain unchanged
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response.cookies['favorite_color'] = 'blue'
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response.cookies['favorite_color'] = 'pink'
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del response.cookies['favorite_color']
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return response
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```
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Response cookies can be set like dictionary values and have the following
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parameters available:
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- `expires` (datetime): The time for the cookie to expire on the
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client's browser.
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- `path` (string): The subset of URLs to which this cookie applies. Defaults to /.
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- `comment` (string): A comment (metadata).
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- `domain` (string): Specifies the domain for which the cookie is valid. An
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explicitly specified domain must always start with a dot.
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- `max-age` (number): Number of seconds the cookie should live for.
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- `secure` (boolean): Specifies whether the cookie will only be sent via
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HTTPS.
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- `httponly` (boolean): Specifies whether the cookie cannot be read by
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Javascript.
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**Previous:** [Class-based views](class_based_views.md)
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**Next:** [Custom protocols](custom_protocol.md)
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