bx.in.th API

bx.rb

#!/usr/bin/env ruby
# frozen_string_literal: true

require 'net/http'
require 'json'
require 'yaml'

unless ARGV.count == 0 || ARGV.count == 1
  puts "Usage #{$0} [--mappings]"
  exit
end

MAPPINGS = {
  '1': 'BTC',
  '21': 'ETH',
  '22': 'DASH',
  '25': 'XRP',
  '26': 'OMG'
}

CURRENCY_SYMBOLS = { 'THB' => '฿', 'BTC' => '₿' }

bx_response = Net::HTTP.get_response(URI('https://bx.in.th/api/'))
data = JSON.parse(bx_response.body).sort_by { |k, _| k.to_i }.to_h

portfolio = YAML.load_file('portfolio.yml')

if ARGV[0] == '--mappings'
  data.each do |key, crypto|
    puts "#{key.rjust(2)}: #{crypto['primary_currency']}/#{crypto['secondary_currency']}"
  end
  exit
end

balance = 0
cryptos = MAPPINGS.empty? ? data.keys : MAPPINGS.keys

puts "Coin\tLast Price\tAmount\tNet Value"
cryptos.each do |key|
  next unless portfolio[MAPPINGS[key]]
  crypto = data[key.to_s]
  symbol = CURRENCY_SYMBOLS.fetch(crypto['primary_currency'])
  bid = crypto['orderbook']['bids']['highbid'].to_f
  amount = portfolio[MAPPINGS[key]].to_f
  crypto_value = amount * bid
  puts "#{crypto['secondary_currency']}\t#{symbol}#{crypto['last_price'].to_i}" \
    "\t\t#{amount.round(3)}\t฿#{crypto_value.to_i}"
  balance += crypto_value
end

puts "Balance: ฿#{balance.to_i}"

portfolio.yml

# How many coins do you own?

OMG: 1
ETH: 2
BTC: 3
DASH: 4

Sample output: