python-benedict/benedict/serializers/query_string.py

34 lines
904 B
Python

import re
from urllib.parse import parse_qs, urlencode
from benedict.serializers.abstract import AbstractSerializer
class QueryStringSerializer(AbstractSerializer):
"""
This class describes a query-string serializer.
"""
def __init__(self):
super().__init__(
extensions=[
"qs",
"querystring",
],
)
def decode(self, s, **kwargs):
flat = kwargs.pop("flat", True)
qs_re = r"(?:([\w\-\%\+\.\|]+\=[\w\-\%\+\.\|]*)+(?:[\&]{1})?)+"
qs_pattern = re.compile(qs_re)
if qs_pattern.match(s):
data = parse_qs(s)
if flat:
data = {key: value[0] for key, value in data.items()}
return data
raise ValueError(f"Invalid query string: {s}")
def encode(self, d, **kwargs):
data = urlencode(d, **kwargs)
return data