Mongo UUID Type 3 <-> Type 4 Conversion

Readme.md

This solves the issue that MongoDB documents are stored under and read with different UUID formats between different environments, for example Java drivers and the Mongo Shell.

Prerequistes

1. Download https://github.com/mongodb/mongo-csharp-driver/blob/750d021a0ea5fcc6ade34b4a968fdbe16f3d2377/uuidhelpers.js
2. Load the script into the Mongo Shell, i.e. mongo --shell uuidhelpers.js

Situation: 36-chars-UUID -> BinData-Type-3

JUUID("a635b4cf-0d53-4780-8b10-0f27ec2197ff")

Situation: BinData-Type-3 -> 36-chars-UUID

BinData(3, 'gEdTDc+0Nab/lyHsJw8Qiw==').toJUUID()

bin3-to-uuid.sh

#!/bin/bash

binid=$1
if [ -z "$binid" ]; then echo "missing binid"; exit 1; fi

echo "print(BinData(3, '$binid').toJUUID())" | mongo --shell uuidhelpers.js --quiet
exit $?

uuid-to-bin3.sh

#!/bin/bash

uuid=$1
if [ -z "$uuid" ]; then echo "missing uuid"; exit 1; fi

echo "print(JUUID('$uuid'))" | mongo --shell uuidhelpers.js --quiet
exit $?