A utility library for parsing HTTP request arguments, with built-in support for popular web frameworks, including Flask and Django.
Project description
Homepage: https://webargs.readthedocs.org/
webargs is a Python utility library for parsing HTTP request arguments, with built-in support for popular web frameworks, including Flask, Django, Bottle, and Tornado.
from flask import Flask
from webargs import Arg
from webargs.flaskparser import use_args
app = Flask(__name__)
hello_args = {
'name': Arg(str, required=True)
}
@app.route('/')
@use_args(hello_args)
def index(args):
return 'Hello ' + args['name']
if __name__ == '__main__':
app.run()
# curl http://localhost:5000/\?name\='World'
# Hello WorldInstall
pip install -U webargs
webargs supports Python >= 2.6 or >= 3.3.
Documentation
Full documentation is available at https://webargs.readthedocs.org/.
License
MIT licensed. See the LICENSE file for more details.
Changelog
0.6.2 (2014-10-05)
Fix bug in TornadoParser's handle_error method. Thanks Josh Carp.
Add error parameter to Parser constructor that allows a custom error message to be used if schema-level validation fails.
Fix bug that raised a UnicodeEncodeError on Python 2 when an Arg’s validator function received non-ASCII input.
0.6.1 (2014-09-28)
Fix regression with parsing an Arg with both default and target set (see issue #11).
0.6.0 (2014-09-23)
Add validate parameter to Parser.parse and Parser.use_args. Allows validation of the full parsed output.
If allow_missing is True on an Arg for which None is explicitly passed, the value will still be present in the parsed arguments dictionary.
Backwards-incompatible: Parser's parse_* methods return webargs.core.Missing if the value cannot be found on the request. NOTE: webargs.core.Missing will not show up in the final output of Parser.parse.
Fix bug with parsing empty request bodies with TornadoParser.
0.5.1 (2014-08-30)
Fix behavior of Arg's allow_missing parameter when multiple=True.
Fix bug in tornadoparser that caused parsing JSON arguments to fail.
0.5.0 (2014-07-27)
Fix JSON parsing in Flask parser when Content-Type header contains more than just application/json. Thanks Samir Uppaluru for reporting.
Backwards-incompatible: The use parameter to Arg is called before type conversion occurs. Thanks Eric Wang for the suggestion.
Tested on Tornado>=4.0.
0.4.0 (2014-05-04)
Custom target handlers can be defined using the Parser.target_handler decorator.
Error handler can be specified using the Parser.error_handler decorator.
Args can define their request target by passing in a target argument.
Backwards-incompatible: DEFAULT_TARGETS is now a class member of Parser. This allows subclasses to override it.
0.3.4 (2014-04-27)
Fix bug that caused use_args to fail on class-based views in Flask.
Add allow_missing parameter to Arg.
0.3.3 (2014-03-20)
Awesome contributions from the open-source community!
Add use_kwargs decorator. Thanks @venuatu.
Tornado support thanks to @jvrsantacruz.
Tested on Python 3.4.
0.3.2 (2014-03-04)
Fix bug with parsing JSON in Flask and Bottle.
0.3.1 (2014-03-03)
Remove print statements in core.py. Oops.
0.3.0 (2014-03-02)
Add support for repeated parameters (#1).
Backwards-incompatible: All parse_* methods take arg as their fourth argument.
Add error_handler param to Parser.
0.2.0 (2014-02-26)
Bottle support.
Add targets param to Parser. Allows setting default targets.
Add files target.
0.1.0 (2014-02-16)
First release.
Parses JSON, querystring, forms, headers, and cookies.
Support for Flask and Django.
Release history Release notifications | RSS feed
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