Specs

decode(binary()) :: {:ok, integer()} | :error

Decode base 62 char from alphabet above to base 10 integer.

Returns tuple {:ok, number} if binary can be converted using alphabet, :error instead.

Specs

decode!(binary()) :: integer()

Same as decode/1 except this function return just number or raise error if binary can not be converted.

Specs

encode(integer()) :: binary()

Encode base 10 integer to base 62 char from alphabet above.