Homewizard websocket

[gjniewenhuijse]

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

[admin]

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.

[gjniewenhuijse]

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

---

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

[admin]

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.

[gjniewenhuijse]

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

[admin]

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')