Download Media from Snapchat Backup

gistfile1.txt

# give your files a creation date so Photos on macOS sorts them correctly
find -f $FILE | xargs -I {} exiftool -CreateDate={} -MediaCreateDate={} {}

snapchat exporter

#!/bin/bash

###
# Snapchat exporter
# 
# You to download your memories from Snapchat with this neat little importer.
# All you need to do is go to https://accounts.snapchat.com/accounts/downloadmydata and request your data
# You will receive an email with your zipped data, copy inside json/memories_history.json to this dir

MEMORIES_FILE="./memories_history.json"
API_ENDPOINT="https://app.snapchat.com/dmd/memories"

NumberOfMemories=$(jq '.[] | length' "$MEMORIES_FILE")

for (( c=0; c<"$NumberOfMemories"; c++))
do
	echo $c
	# get date for sorting downloaded files
	DATE=$(jq -r '.[] | .['"$c"'].Date' "$MEMORIES_FILE" | sed 's/ /_/g')

	# get full download url from memories file
	POST_DATA=$(jq '.[] | .['"$c"']."Download Link"' "$MEMORIES_FILE" | gsed 's/.*?//' | gsed 's/"//' )

	# create download link out of post data
	DOWNLOAD_LINK=$(curl -s -d "$POST_DATA" "$API_ENDPOINT")
	
	FILENAME=$(echo $DOWNLOAD_LINK | grep -Eo "(\w+-\w+-\w+-\w+-\w+)\.(\w{3})")

	echo "DOWNLOADING: "
	echo $DOWNLOAD_LINK
	echo "TO: "
	echo "$DATE"-"$FILENAME"

	#curl -s "$DOWNLOAD_LINK" > data/"$DATE"-"$FILENAME"
	wget -nc -O data/"$DATE"-"$FILENAME" "$DOWNLOAD_LINK"
done

#➤ find -f * | xargs -I {} exiftool -CreateDate={} {}

Okay but like I have literally no idea what I am doing? Could you decide this for me and show me what it is before I go insane???