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Project description
starlette-async-jinja
Jinja2 is_async template support for Starlette +
About
- Provides AsyncJinja2Templates class which enables use of the is_async Jinja environment flag with Startlette and Starlette based applications like FastAPI
- Integrated Jinja Partials and Jinja Fragments
- Supports asynchronous template loaders (examples here) (not yet tested but should work)
Issues
-
Only asynchronous template loaders (not yet tested but should work) are currently supported
-
The Jinja bytecodecache requires an asynchronous Redis backend
Usage
Import AsyncJinja2 Templates:
from starlette_async_jinja import AsyncJinja2Templates
Replace Jinja2Templates with AsyncJinja2Templates:
templates = Jinja2Templates(directory='templates')
Render the async template in the response:
async def homepage(request: Request):
return await templates.AsyncTemplateResponse('index.html', {'request': request})
Even simpler:
async def homepage(request: Request):
return await templates.render_template('index.html', {'request': request})
To render Jinja Fragments or 'blocks':
async def only_block(request: Request):
return await templates.render_block(
"page.html.jinja2",
{"request": request, "magic_number": 42},
block_name="content"
)
To render Jinja Partials:
in a template
{% for v in row %}
<div class="col-md-3 video">
{{ render_partial('shared/partials/video_square.html', video=v) }}
</div>
{% endfor %}
or programmatically
async def render_partial(template: str, **kwargs):
return await templates.render_partial(template, **kwargs)
Acknowledgements
License
BSD-3-Clause
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