Mealie automatic backups script

do-mealie-backup.sh

#!/usr/bin/env bash
# This script is used to backup mealie data from a mealie server instance to a
# local directory.
#
# It will request a backup to be created in the server and it will then request
# its download.
#
# Usage: do-mealie-backup.sh [server_addr] [backup_dir] [username] [password]
#
# server_addr: The address:port of the mealie server instance.
# backup_dir: The directory where the backup will be saved.
# username: The username to authenticate with the mealie server.
# password: The password to authenticate with the mealie server.
set -ex

server_addr="${1:-$SERVER_ADDR}"
backup_dir=${2:-$BACKUP_DIR}
username="${3:-$USERNAME}"
password="${4:-$PASSWORD}"

access_token=$(
  curl --fail --silent -X 'POST' \
    "$server_addr/api/auth/token" \
    -H 'accept: application/json' \
    -H 'Content-Type: application/x-www-form-urlencoded' \
    -d "grant_type=&username=$username&password=$password&remember_me=false&scope=&client_id=&client_secret=" | jq -r '.access_token'
)

curl --fail -X 'POST' \
  "$server_addr/api/admin/backups" \
  -H 'accept: application/json' \
  -H "Authorization: Bearer $access_token" \
  -d ''

backup_name=$(
  curl --fail -X 'GET' \
    "$server_addr/api/admin/backups" \
    -H 'accept: application/json' \
    -H "Authorization: Bearer $access_token" | jq -r '.imports[0].name'
)

download_token=$(
  curl -X 'GET' \
    "$server_addr/api/admin/backups/$backup_name" \
    -H 'accept: application/json' \
    -H "Authorization: Bearer $access_token" | jq -r '.fileToken'
)

curl -X 'GET' \
  "$server_addr/api/utils/download?token=$download_token" \
  -H 'accept: application/json' \
  -H "Authorization: Bearer $access_token" \
  --output $backup_dir/$backup_name