base64-mongo-id

This library converts mongo ids into base64 strings. It has no dependencies and works in all browsers.

Methods

toBase64(mongoIdStr)

- **Input**: A Mongo id or 24-character hex string
- **Output**: A 16-character base 64 string

toHex(shortedIdStr)

- **Input**: A 16-character base 64 string
- **Output**: A 24-character hex string

Encoding System

The chosen base 64 encoding uses the following system. The characters were chosen to match common base 64 encoding schemes, but to be URL-safe. 0 - A 1 - B 2 - C 3 - D 4 - E 5 - F 6 - G 7 - H 8 - I 9 - J 10 - K 11 - L 12 - M 13 - N 14 - O 15 - P 16 - Q 17 - R 18 - S 19 - T 20 - U 21 - V 22 - W 23 - X 24 - Y 25 - Z 26 - a 27 - b 28 - c 29 - d 30 - e 31 - f 32 - g 33 - h 34 - i 35 - j 36 - k 37 - l 38 - m 39 - n 40 - o 41 - p 42 - q 43 - r 44 - s 45 - t 46 - u 47 - v 48 - w 49 - x 50 - y 51 - z 52 - 0 53 - 1 54 - 2 55 - 3 56 - 4 57 - 5 58 - 6 59 - 7 60 - 8 61 - 9 62 - _ 63 - -