In case of IO disk overload and WebUI not accessible, pause all currently active torrents in qBittorrent via shell script

qbittorrent_pause_all_active.sh

#!/bin/bash

# Tested on:
# qBit v5.1.4 | API v2.11.4 | lt 2.0.11.0

QBT="http://127.0.0.1:8080"
TIMEOUT="300"

# Get JSON from API and extract hashes of all currently active torrents
hashes=$(/usr/bin/curl --connect-timeout ${TIMEOUT} "${QBT}/api/v2/torrents/info?filter=active" | jq -r '.[].hash' | paste -sd '|' -)

[[ -z "${hashes}" ]] && { echo "Hashes is empty!" ; exit 1; }

# Optional: print hashes for verification
echo "Hashes: ${hashes}"

# Call pause API with hashes
/usr/bin/curl -X POST --connect-timeout ${TIMEOUT} "${QBT}/api/v2/torrents/stop" --data-raw "hashes=${hashes}"