Tibber API

[admin]

Change token / group addresses as needed:

Code:

https = require('ssl.https')
json = require('json')
ltn12 = require('ltn12')

token = '476c477d8a039529478ebd690d35ddd80e3308ffc49b59c65b142321aee963a4' -- demo token

query = [[
{
  viewer {
    homes {
      currentSubscription {
        priceInfo {
          today {
            total
            startsAt
          }
          tomorrow {
            total
            startsAt
          }
        }
      }
    }
  }
}
]]

data = json.encode({ query = query })

tbl = {}
res, code = https.request({
  url = 'https://api.tibber.com/v1-beta/gql',
  method = 'POST',
  headers = {
    ['authorization'] = 'Bearer ' .. token,
    ['content-type']  = 'application/json',
    ['content-length'] = #data,
  },
  source = ltn12.source.string(data),
  sink = ltn12.sink.table(tbl),
})

if res and code == 200 then
  resp = table.concat(tbl)
  resp = json.pdecode(resp)
  homes = resp.data.viewer.homes

  today = homes[ 1 ].currentSubscription.priceInfo.today or {}
  tomorrow = homes[ 1 ].currentSubscription.priceInfo.tomorrow or {}

  function getprice(hour)
    local entry
    local index = hour + 1

    if index > 24 then
      entry = tomorrow[ index - 24 ]
    else
      entry = today[ index ]
    end

    if entry then
      return entry.total
    end
  end

  hour = os.date('*t').hour

  grp.update('1/1/1', getprice(hour))
  grp.update('1/1/2', getprice(hour + 1))
  grp.update('1/1/3', getprice(hour + 2))
else
  log(res, code)
end