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Random prefixed ids

Project description


Generates URL-safe random ids with a prefix and optional timestamp.


pip install zuid


The ZUID class works as a callable id factory for a given prefix:

>>> from zuid import ZUID
>>> generator = ZUID(prefix='user_')
>>> generator()
>>> generator()

The factory generates ids that are 22 chars long by default, which in base 62 corresponds to 131 random bits. For comparison, a v4 UUID has 122 random bits. It can be changed with the length parameter:

>>> generator = ZUID(prefix='user_', length=27)
>>> generator()

With the timestamped parameter, the factory uses the current nanoseconds since epoch as the first 8 bytes, preserving the order when sorting by id.

>>> generator = ZUID(prefix='user_', timestamped=True)
>>> generator()
>>> generator()
>>> generator()
>>> generator()

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