jcary741

import {useEffect} from "react";

/**
 * A hook that runs an async function on mount with support for cancellation.
 *
 * If unmounting before the async function completes, the cleanup function will be called.
 * @param fn {function} A function that takes a 'cancelled' function as its only argument.
 * @param inputs {array?} An optional array of inputs to pass to useEffect.
 * @param cleanup {function?} An optional cleanup function to run on unmount.
 *

jcary741

/**
 * Generate a UUIDv7 as a string (see also: https://datatracker.ietf.org/doc/draft-peabody-dispatch-new-uuid-format/)
 *
 * This function was translated to javascript from the python implementation here: https://github.com/oittaa/uuid6-python
 *
 * The UUIDv7 format is designed to encode a Unix timestamp with
 * arbitrary sub-second precision. The key property provided by UUIDv7
 * is that timestamp values generated by one system and parsed by
 * another are guaranteed to have sub-second precision of either the
 * generator or the parser, whichever is less. Additionally, the system

jcary741

"""
An example of how to use boto3 and a concurrent.futures process pool to upload files in parallel.

Bonus: when uploading files ending in .gz, the Content-Encoding metadata will be set automatically.
"""
import os
from concurrent.futures import ProcessPoolExecutor, as_completed
import boto3

def concurrent_s3_upload(files, bucket, prefix, metadata, remove_gz_extension=True):