mango-explorer/scripts/random-taker

#!/usr/bin/env bash
MARKET=${1:-BTC-PERP}
FIXED_POSITION_SIZE=${2:-0.01}
IMMEDIATE_BUY_ADJUSTMENT=${3:-100}
ORACLE_MARKET=${MARKET//\-PERP/\/USDC}

printf "Running on market %s with position size %f and IOC prices +/- %f from current price\nPress Control+C to stop...\n" $MARKET $FIXED_POSITION_SIZE $IMMEDIATE_BUY_ADJUSTMENT
while :
do
    cancel-my-orders --name "Random Taker ${MARKET} (cancel)" --market $MARKET --log-level ERROR

    CURRENT_PRICE=$(fetch-price --provider serum --symbol $ORACLE_MARKET --log-level ERROR --cluster mainnet-beta | cut -d"'" -f 2 | sed 's/,//')
    place-order --name "Random Taker ${MARKET} (place buy)" --market $MARKET --order-type IOC --log-level ERROR \
        --side BUY --quantity $FIXED_POSITION_SIZE --price $(echo "$CURRENT_PRICE + $IMMEDIATE_BUY_ADJUSTMENT" | bc)

    PAUSE_FOR=$((1 + $RANDOM % 30))
    printf "Pausing after BUY for %d seconds.\n" ${PAUSE_FOR}
    sleep ${PAUSE_FOR}

    CURRENT_PRICE=$(fetch-price --provider serum --symbol $ORACLE_MARKET --log-level ERROR --cluster mainnet-beta | cut -d"'" -f 2 | sed 's/,//')
    place-order --name "Random Taker ${MARKET} (place sell)" --market $MARKET --order-type IOC --log-level ERROR \
        --side SELL --quantity $FIXED_POSITION_SIZE --price $(echo "$CURRENT_PRICE - $IMMEDIATE_BUY_ADJUSTMENT" | bc)

    PAUSE_FOR=$((1 + $RANDOM % 30))
    printf "Pausing after SELL for %d seconds.\n" ${PAUSE_FOR}
    sleep ${PAUSE_FOR}

    echo "Last ${MARKET} taker action: $(date)" > /var/tmp/mango_healthcheck_random_taker
done