Homewizard websocket - Printable Version

Homewizard websocket - Printable Version

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+--- Thread: Homewizard websocket (/showthread.php?tid=6158)

Homewizard websocket - gjniewenhuijse - 16.10.2025

In the new Homewizard v2 api there's a websocket to receive device updates, see:
WebSocket | HomeWizard Energy API Documentation

From the forum i used an example, but i received an error:

Code:
* table:

 ["type"]

  * string: authorization_requested

 ["data"]

  * table:

   ["api_version"]

    * string: 2.0.1

* string: receive failed: error:0A000126:SSL routines::unexpected eof while reading

My code

Code:
if not client then

  ws = require('user.websocket')

  json = require('json')

  local ip = 'MYIP'

  local token = 'MYTOKEN'

  local url = 'wss://' .. ip .. '/api/ws'

  client, err = ws.client('sync', 10)

  res, err = client:connect(url)

  if res then

    -- send authorization

    client:send(json.encode({

      type = 'authorization',

      payload = 'data=' .. token,

    }))

    -- subscribe op batteries

        --client:send(json.encode({

          --type = 'subscribe',

          --data = 'batteries'

        --}))

  else

    log('connection failed: ' .. tostring(err))

    client:close()

    client = nil

  end

else

  data, _, _, opcode, err = client:receive()

  if data then

    data = json.pdecode(data)

    if data then

      log(data)

    end

  else

    log('receive failed: ' .. tostring(err))

    client:close()

    client = nil

  end

end

RE: Homewizard websocket - admin - 16.10.2025

Try sending auth this way:

Code:
client:send(json.encode({

  type = 'authorization',

  data = token,

}))

You might need to wait for authorization_requested to be sent by the server fist before sending the authorization command.

RE: Homewizard websocket - gjniewenhuijse - 16.10.2025

and how to setup the code to connect to multiple devices (+- 10 devices)?

(16.10.2025, 09:39)admin Wrote: Try sending auth this way:

Code:
client:send(json.encode({ type = 'authorization', data = token, }))

You might need to wait for authorization_requested to be sent by the server fist before sending the authorization command.

It works, i see data but also:

Code:
* string: receive failed: protocol error

and

* string: connection failed: timeout

RE: Homewizard websocket - admin - 16.10.2025

If you need multiple websockets then create a separate script for every connection. A user library can be helpful to avoid copy/pasting the same code.

timeout error can be ignored, it simply means that there's no data to be read at this moment. You can increase the timeout value if the data is guaranteed to be sent at least once every X seconds.

RE: Homewizard websocket - gjniewenhuijse - 17.10.2025

(16.10.2025, 10:11)admin Wrote: If you need multiple websockets then create a separate script for every connection. A user library can be helpful to avoid copy/pasting the same code.

timeout error can be ignored, it simply means that there's no data to be read at this moment. You can increase the timeout value if the data is guaranteed to be sent at least once every X seconds.

Something like this?

Resident script

Code:
require('user.nit_homewizard')

clientHandler(1)

User library nit_homewizard

Code:
--https://api-documentation.homewizard.com/docs/v2/websocket

debug = false

-- all homewizard devices (client, ip, token)

local cDevices = { {nil, 'YOURIP', 'YOURTOKEN'} }

function clientHandler(iDevice)

  if not cDevices[iDevice][1] then

    ws = require('user.websocket')

    json = require('json')

    local ip = cDevices[iDevice][2]

    local token = cDevices[iDevice][3]

    local url = 'wss://' .. ip .. '/api/ws'

    cDevices[iDevice][1], err = ws.client('sync', 10)

    res, err =  cDevices[iDevice][1]:connect(url)

    if res then

      -- send authorization

       cDevices[iDevice][1]:send(json.encode({type = 'authorization',data = token}))

      -- identify

      -- cDevices[iDevice][1]:send(json.encode({type = 'identify'}))

      -- polling data once

       cDevices[iDevice][1]:send(json.encode({type = 'system'}))

      -- (un)subscribe

       cDevices[iDevice][1]:send(json.encode({type = 'subscribe',data = '*'}))

      -- subscribe op device info

      --cDevices[iDevice][1]:send(json.encode({type = 'subscribe',data = 'device'}))

      -- subscribe op system info

      --cDevices[iDevice][1]:send(json.encode({type = 'subscribe',data = 'system'}))

      -- (un)subscribe op measurement 

      --cDevices[iDevice][1]:send(json.encode({type = 'subscribe',data = 'measurement'}))

      cDevices[iDevice][1]:send(json.encode({type = 'unsubscribe',data = 'measurement'}))

      -- subscribe op batteries (werkt niet, onbekend)

      --cDevices[iDevice][1]:send(json.encode({type = 'subscribe',data = 'batteries'}))

      -- setting data

      --{ "type": "system", "data": { "cloud_enabled": false } }

    else

      if debug then

        log('connection failed: ' .. tostring(err))

      end

       cDevices[iDevice][1]:close()

       cDevices[iDevice][1] = nil

    end

  else

    data, _, _, opcode, err =  cDevices[iDevice][1]:receive()

    if data then

      data = json.pdecode(data)

      if data then

        log(data)

      end

    else

      if debug then

        log('receive failed: ' .. tostring(err))

      end

       cDevices[iDevice][1]:close()

       cDevices[iDevice][1] = nil

    end

  end

end

RE: Homewizard websocket - admin - 17.10.2025

A simpler way:

Code:
function clientHandler(ip, token)

  if not client then

    ws = require('user.websocket')

    json = require('json')

    local url = 'wss://' .. ip .. '/api/ws'

    client, err = ws.client('sync', 10)

    res, err =  client:connect(url)

    ...

  else

    data, _, _, opcode, err =  client:receive()

    ...

  end

end

Code:
require('user.nit_homewizard')

clientHandler('192.168.192.168', '123456')