29 lines
913 B
Python
29 lines
913 B
Python
from hashids import Hashids
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from app.config import settings
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class ShortCodeEncoder:
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def __init__(self, salt=None, alphabet=None, min_length=6):
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self.salt = salt or settings.hashids_salt
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self.alphabet = alphabet or settings.encoder_alphabet
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self.hashids = Hashids(salt=self.salt, min_length=min_length, alphabet=self.alphabet)
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self.min_length = min_length
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def encode(self, url_id: int) -> str:
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return self.hashids.encode(url_id)
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def decode(self, shortcode: str) -> int:
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decoded = self.hashids.decode(shortcode)
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return decoded[0] if decoded else None
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def is_valid(self, shortcode: str) -> bool:
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if len(shortcode) < self.min_length:
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return False
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if any(char not in self.alphabet for char in shortcode):
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return False
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return True
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# Singleton instance of encoder
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encoder = ShortCodeEncoder()
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