aiohttp_jinja2

jinja2 template renderer for aiohttp.web.

Installation

Install from PyPI:

pip install aiohttp-jinja2

Developing

Install requirement and launch tests:

pip install -r requirements-dev.txt
pytest tests

Usage

Before template rendering you have to setup jinja2 environment first:

app = web.Application()
aiohttp_jinja2.setup(app,
    loader=jinja2.FileSystemLoader('/path/to/templates/folder'))

Import:

import aiohttp_jinja2
import jinja2

After that you may to use template engine in your web-handlers. The most convenient way is to decorate a web-handler.

Using the function based web handlers:

@aiohttp_jinja2.template('tmpl.jinja2')
def handler(request):
    return {'name': 'Andrew', 'surname': 'Svetlov'}

Or for `Class Based Views <>`:

class Handler(web.View):
    @aiohttp_jinja2.template('tmpl.jinja2')
    async def get(self):
        return {'name': 'Andrew', 'surname': 'Svetlov'}

On handler call the aiohttp_jinja2.template decorator will pass returned dictionary {'name': 'Andrew', 'surname': 'Svetlov'} into template named tmpl.jinja2 for getting resulting HTML text.

If you need more complex processing (set response headers for example) you may call render_template function.

Using a function based web handler:

async def handler(request):
    context = {'name': 'Andrew', 'surname': 'Svetlov'}
    response = aiohttp_jinja2.render_template('tmpl.jinja2',
                                              request,
                                              context)
    response.headers['Content-Language'] = 'ru'
    return response

Or, again, a class based view:

class Handler(web.View):
    async def get(self):
        context = {'name': 'Andrew', 'surname': 'Svetlov'}
        response = aiohttp_jinja2.render_template('tmpl.jinja2',
                                                  self.request,
                                                  context)
        response.headers['Content-Language'] = 'ru'
        return response

License

aiohttp_jinja2 is offered under the Apache 2 license.

CHANGES

1.6 (2023-11-18)

• Switch to aiohttp.web.AppKey, and deprecate the old 'static_root_url' key.
• Drop Python 3.7, add Python 3.12.

1.5.1 (2023-02-01)

• Add support for Python 3.11.
• Drop support for decorating non-async functions with @template (deprecated since 0.16).

1.5 (2021-08-21)

• Drop support for jinaj2 ❤️. Add support for 3+.
• Don't require typing_extensions on Python 3.8+.

1.4.2 (2020-11-23)

• Add CHANGES.rst to MANIFEST.in and sdist #402

1.4.1 (2020-11-22)

• Document async rendering functions #396

1.4.0 (2020-11-12)

• Fix type annotation for context_processors argument #354
• Bump the minimal supported aiohttp version to 3.6.3 to avoid problems with uncompatibility between aiohttp and yarl
• Add async rendering support #393

1.3.0 (2020-10-30)

• Remove Any from template annotations #343
• Fix type annotation for filters in aiohttp_jinja2.setup #330
• Drop Python 3.5, support Python 3.9

1.2.0 (2019-10-21)

• Add type hints #285

1.1.1 (2019-04-25)

• Bump minimal supported jinja2 version to 2.10.1 to avoid security vulnerability problem.

1.1.0 (2018-09-05)

• Bump minimal supported aiohttp version to 3.2
• Use request.config_dict for accessing jinja2 environment. It allows to reuse jinja rendering engine from parent application.

1.0.0 (2018-03-12)

• Allow context_processors to compose from parent apps #195

0.17.0 (2018-03-12)

• Auto-cast int values in url() jinja function to str #191

0.16.0 (2018-02-12)

• Pin to aiohttp 3.0+
• Deprecate non-async handlers support

0.15.0 (2018-01-30)

• Upgrade middleware to new style from aiohttp 2.3+ #182
• Autoescape all templates by default #179

0.13.0 (2016-12-14)

• Avoid subtle errors by copying context processor data #51

0.12.0 (2016-12-02)

• Add autodeploy script #46

0.11.0 (2016-11-24)

• Add jinja2 filters support #41

0.10.0 (2016-10-20)

• Rename package to aiohttp-jinja2 #31

0.9.0 (2016-09-26)

• Fix reason parameter in HTTPInternalServerError when template is not found #33

0.8.0 (2016-07-12)

• Add ability to render template without context #28

0.7.0 (2015-12-30)

• Add ability to decorate class based views (available in aiohttp 0.20) #18
• Upgrade aiohttp requirement to version 0.20.0+

0.6.2 (2015-11-22)

• Make app_key parameter from render_string coroutine optional

0.6.0 (2015-10-29)

• Fix a bug in middleware (missed coroutine decorator) #16
• Drop Python 3.3 support (switched to aiohttp version v0.18.0)
• Simplify context processors initialization by adding parameter to setup()

0.5.0 (2015-07-09)

• Introduce context processors #14
• Bypass StreamResponse #15

0.4.3 (2015-06-01)

• Fix distribution building: add manifest file

0.4.2 (2015-05-21)

• Make HTTPInternalServerError exceptions more verbose on console output

0.4.1 (2015-04-05)

• Documentation update

0.4.0 (2015-04-02)

• Add render_string method

0.3.1 (2015-04-01)

• Don't allow non-mapping context
• Fix tiny documentation issues
• Change the library logo

0.3.0 (2015-03-15)

• Documentation release

0.2.1 (2015-02-15)

• Fix render_template function

0.2.0 (2015-02-05)

• Migrate to aiohttp 0.14
• Add status parameter to template decorator
• Drop optional response parameter

0.1.0 (2015-01-08)

• Initial release