check your current profitability from nicehash

nh-profit.sh

#!/bin/sh
# REQUIRES jq (https://stedolan.github.io/jq)
#
# This program, nh-profit, checks your current profitability from nicehash.
#
# Copyright 2017  Lucas Morales <[email protected]>
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.

# defaults
addr= # bitcoin address of nicehash provider
currency=USD # of BTC, USD, GBP, EUR
pretty=1 # appends " $currency/day"

# constants
nhapi="https://api.nicehash.com/api?method=stats.provider.ex"
btcapi="http://api.coindesk.com/v1/bpi/currentprice.json"

while [ $# -gt 0 ]
do case "$1" in
  -h|--help)
    cat <<EOF
Usage: `basename $0` [options]
  check your current daily profitability from nicehash

options:
  -a, --addr <ADDR>          Bitcoin address of nicehash provider.
                             (default: $addr)
  -c, --currency <CURRENCY>  Currency for output: BTC, USD, GBP, EUR.
                             (default: $currency)
  -n, --no-pretty            Displays profitability in less pretty format.

EOF
    exit
    ;;
  -a|--addr)
    shift
    addr=$1
    shift
    ;;
  -c|--currency)
    shift
    currency="$1"
    shift
    ;;
  -n|--no-pretty)
    shift
    pretty=0
    ;;
  *)
    >&2 echo "invalid argument: $1"
    exit 1
esac
done

if ! command -v jq >/dev/null
then >&2 echo "This program requires jq: https://stedolan.github.io/jq"; exit 1
fi

# validate the currency
case "$currency" in
  BTC)
    format="%.8f"
    btc_conv=1.0
    ;;
  USD|GBP|EUR)
    format="%.2f"
    btc_conv=$(curl -LSs $btcapi | jq ".bpi.$currency.rate_float")
    ;;
  *)
    >&2 echo "invalid currency: $currency"
    exit 1
esac

# get nicehash info
response=$(curl -LSs "$nhapi&addr=$addr" | jq -c '.result | {error, current}')

# nicehash error check
if echo "$response" | jq -e '.error != null' >/dev/null
then echo "$response" | jq -r .error >&2 ; exit 1
fi

# compute profitability
profitability_btc=$(echo "$response" | jq -r '
  reduce (
    .current | .[] |
    if .data[1] != "0" and (.data[0] | has("a"))
    then (.data[0].a | tonumber) * (.profitability | tonumber)
    else empty
    end
  ) as $i (0;.+$i)' )
profitability=$(jq -n "$profitability_btc * $btc_conv")

# display
if [ $pretty -eq 0 ]
then printf "$format\n" $profitability
else printf "$format $currency/day\n" $profitability
fi

See lucasem/cryptocurrency-things for an up-to-date version.