34 lines
806 B
Python
34 lines
806 B
Python
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from flask import request
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class ParsingException(Exception):
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def __init__(self, message):
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self.message = message
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def parse_int(name, minimum):
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try:
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result = int(request.args.get(name, minimum))
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except ValueError:
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raise ParsingException("Couldn't parse {} as integer".format(name))
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if result < minimum:
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raise ParsingException("{} must be greater than {}".format(name, minimum))
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return result
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def parse_limit():
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return parse_int("limit", -1)
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def parse_offset():
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return parse_int("offset", 0)
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def parse_json_obj():
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try:
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json = request.get_json()
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except:
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raise ParsingException("Failed to parse JSON body")
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if type(json) is not dict:
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raise ParsingException("Expected JSON object as body")
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return json
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