REST API to KNX groups

[admin]

Try this:

Code:

date = os.date('%Y%m%d')

periodstart = date .. '0000'
periodend = date .. '2300'

url = 'https://web-api.tp.entsoe.eu/api?securityToken=XXXXXXXXXX&' ..
  'documentType=A44&in_Domain=10Y1001A1001A46L&out_Domain=10Y1001A1001A46L&' ..
  'periodStart=' .. periodstart .. '&periodEnd=' .. periodend

data, code = require('socket.http').request(url)
if not data or code ~= 200 then
  log('request failed', data, code)
  return
end

prices = {}
key = 0

callbacks = {
  StartElement = function(p, tag)
    if tag == 'TimeSeries' then
      key = key + 1
      prices[ key ] = {}
    elseif tag == 'position' then
      state = 'position'
    elseif tag == 'price.amount' then
      state = 'price'
    end
  end,
  EndElement = function(p, tag)
    state = nil
  end,
  CharacterData = function(p, value)
    value = value:trim()

    if #value > 0 then
      if state == 'position' then
        position = tonumber(value)
      elseif state == 'price' then
        prices[ key ][ position ] = tonumber(value)
      end
    end
  end
}

parser = require('lxp').new(callbacks)
parser:parse(data)
parser:close()

if key > 0 then
  rate = grp.getvalue('5/5/6')

  for i, price in pairs(prices[ 1 ]) do
    grp.checkupdate('1/1/' .. i, price * rate / 10)
  end
end