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Smartthings status update - CristianAgata - 02.01.2025

Good morning and happy new year st all.
I'm working with Smartthings API, in command mode I reached good results. My problem it is the status update and I'm asking at the community if some other is working on this.... I 've thought to use the 'https://api.smartthings.com/v1/devices/<deviceId>/components/<componentID>/status' and create a resident script for x seconds to update the values reading the response Json.
I'm asking, is there a more pretty solution?
Best regards Cristian

RE: Smartthings status update - admin - 02.01.2025

Looks like polling is the only way to get the status info.

RE: Smartthings status update - CristianAgata - 02.01.2025

(02.01.2025, 11:35)admin Wrote: Looks like polling is the only way to get the status info.

How many time in a minute, by your experience, do you suggest? I don't want overload the communication with the cloud.
BR Cristian

RE: Smartthings status update - admin - 02.01.2025

This is a question for Smartthings support Smile

Check if API has any rate limits and adjust your scripts accordingly.

RE: Smartthings status update - CristianAgata - 02.01.2025

(02.01.2025, 14:30)admin Wrote: This is a question for Smartthings support Smile

Check if API has any rate limits and adjust your scripts accordingly.

Ok I will check again.
BR Cristian

Smartthings command execution not works - Ozturker - 02.10.2025

Hello all

I am successfully reading the status of individual devices from Smartthings

But when I am trying to set the status via command I am receiving 422.

Same code works from Postman. Is it a string issue?

Thank you in advanced for the comments


Code:
local https = require('ssl.https')
local ltn12 = require('ltn12')
local token = '++++++++'
local cam_id = '++++++++++'
-- Function to turn camera on or off using a raw JSON string
local function set_camera_onoff(cam_id, state)
  local cmd = state and 'on' or 'off'
  local body = string.format([[
{
  "commands": [
    {
      "component": "main",
      "capability": "switch",
      "command": "%s"
    }
  ]
}
]], cmd)
  log('Request body: ' .. body)
  local sink_tbl = {}
  local res, code = https.request({
    url     = 'https://api.smartthings.com/v1/devices/' .. cam_id .. '/commands',
    method  = 'POST',
    headers = {
      ['Content-Type']  = 'application/json',
      ['Authorization'] = 'Bearer ' .. token,
      ['Accept']        = 'application/json',
      ['User-Agent']    = 'Mozilla/5.0',
      ['Content-Length'] = tostring(#body)
    },
    source = ltn12.source.string(body),
    sink   = ltn12.sink.table(sink_tbl),
  })
  local response_body = table.concat(sink_tbl)
  log('SmartThings response code: ' .. tostring(code))
  log('SmartThings response body: ' .. response_body)
  return res, code, response_body
end
-- Usage:
set_camera_onoff(cam_id, true)  -- to turn ON
set_camera_onoff(cam_id, false) -- to turn OFF


RE: Smartthings status update - admin - 02.10.2025

What do you get in response? It should contain some explanation on what is wrong with the request.

RE: Smartthings status update - Ozturker - 02.10.2025

(02.10.2025, 11:04)admin Wrote: What do you get in response? It should contain some explanation on what is wrong with the request.

Code:
string: SmartThings response body: {"requestId":"7895205675944081778","error":{"code":"ConstraintViolationError","message":"The request is malformed.","details":[{"code":"BodyMalformedError","target":"httpRequestBody","message":"The request body is malformed and cannot be processed by server.","details":[]}]}}
Here it is Saying after 422

RE: Smartthings status update - admin - 02.10.2025

Try encoding POST body using JSON library:
Code:
local body = require('json').encode({
  commands = {
    {
      component = 'main',
      capability = 'switch',
      command = cmd,
    }
  }
})


RE: Smartthings status update - Ozturker - 02.10.2025

I receıved below 422
Code:
* string: Request body: {"commands":[{"capability":"switch","command":"on","component":"main"}]}

* string: SmartThings response code: 422

* string: SmartThings response body: {"requestId":"391879646930462279","error":{"code":"ConstraintViolationError","message":"The request is malformed.","details":[{"code":"BodyMalformedError","target":"httpRequestBody","message":"The request body is malformed and cannot be processed by server.","details":[]}]}}

Here is the full code
Code:
local https = require('ssl.https')
local json  = require('json')
local ltn12 = require('ltn12')



-- ⚠️ put your smartthings pat here
local token = '*************'

local livingr_cam_id = '**************************'


-- Camera KNX group objects (choose addresses as needed)
local ga_cam_onoff_set     = grp.create({ datatype = dt.bool,    address = '33/4/1', name = 'Camera On/Off' })
local ga_cam_onoff         = grp.create({ datatype = dt.bool,    address = '33/4/2', name = 'Camera On/Off Status' })
local ga_cam_motion        = grp.create({ datatype = dt.bool,    address = '33/4/11', name = 'Camera Motion Detected' })
local ga_cam_sound         = grp.create({ datatype = dt.bool,    address = '33/4/12', name = 'Camera Sound Detected' })


local cam_set = grp.getvalue(ga_cam_onoff_set)  -- Set
local cam_set_status = grp.getvalue(ga_cam_onoff)  -- Status



-- Helper to turn camera on or off using a raw JSON string
local function set_camera_onoff(cam_id, state)
  local cmd = state and 'on' or 'off'
 
local body = require('json').encode({
  commands = {
    {
      component = 'main',
      capability = 'switch',
      command = cmd,
    }
  }
})


  log('Request body: ' .. body)

  local sink_tbl = {}
  local res, code = https.request({
    url     = 'https://api.smartthings.com/v1/devices/' .. cam_id .. '/commands',
    method  = 'POST',
    headers = {
      ['authorization'] = 'Bearer ' .. token,
      ['content-type']  = 'application/json; charset=utf-8',
      ['accept']        = 'application/json',
    },
    source = ltn12.source.string(body),
    sink   = ltn12.sink.table(sink_tbl),
  })


  local response_body = table.concat(sink_tbl)
  log('SmartThings response code: ' .. tostring(code))
  log('SmartThings response body: ' .. response_body)
  return res, code, response_body
end



if cam_set == true then
    if cam_set_status == false then
        set_camera_onoff(livingr_cam_id, true)
  end
elseif cam_set == false then
    if cam_set_status == true then
        set_camera_onoff(livingr_cam_id, false)
    end
end
     


Here is the working postman cURL
Code:
curl --location 'https://api.smartthings.com/v1/devices/***************************/commands' \
--header 'Content-Type: application/json' \
--header 'Authorization: **********' \
--data '{
    
              "commands": [
                {
                  "component": "main",
                  "capability": "switch",
                  "command": "on"
} ]
}'


Thank you for the support

RE: Smartthings status update - admin - 03.10.2025

Your code is missing content-length header. If it still does not work then send your token and device ID via PM.

RE: Smartthings status update - CristianAgata - 03.10.2025

(02.10.2025, 18:44)Ozturker Wrote: I receıved below 422
Code:
* string: Request body: {"commands":[{"capability":"switch","command":"on","component":"main"}]}

* string: SmartThings response code: 422

* string: SmartThings response body: {"requestId":"391879646930462279","error":{"code":"ConstraintViolationError","message":"The request is malformed.","details":[{"code":"BodyMalformedError","target":"httpRequestBody","message":"The request body is malformed and cannot be processed by server.","details":[]}]}}

Here is the full code
Code:
local https = require('ssl.https')
local json  = require('json')
local ltn12 = require('ltn12')



-- ⚠️ put your smartthings pat here
local token = '*************'

local livingr_cam_id = '**************************'


-- Camera KNX group objects (choose addresses as needed)
local ga_cam_onoff_set     = grp.create({ datatype = dt.bool,    address = '33/4/1', name = 'Camera On/Off' })
local ga_cam_onoff         = grp.create({ datatype = dt.bool,    address = '33/4/2', name = 'Camera On/Off Status' })
local ga_cam_motion        = grp.create({ datatype = dt.bool,    address = '33/4/11', name = 'Camera Motion Detected' })
local ga_cam_sound         = grp.create({ datatype = dt.bool,    address = '33/4/12', name = 'Camera Sound Detected' })


local cam_set = grp.getvalue(ga_cam_onoff_set)  -- Set
local cam_set_status = grp.getvalue(ga_cam_onoff)  -- Status



-- Helper to turn camera on or off using a raw JSON string
local function set_camera_onoff(cam_id, state)
  local cmd = state and 'on' or 'off'
 
local body = require('json').encode({
  commands = {
    {
      component = 'main',
      capability = 'switch',
      command = cmd,
    }
  }
})


  log('Request body: ' .. body)

  local sink_tbl = {}
  local res, code = https.request({
    url     = 'https://api.smartthings.com/v1/devices/' .. cam_id .. '/commands',
    method  = 'POST',
    headers = {
      ['authorization'] = 'Bearer ' .. token,
      ['content-type']  = 'application/json; charset=utf-8',
      ['accept']        = 'application/json',
    },
    source = ltn12.source.string(body),
    sink   = ltn12.sink.table(sink_tbl),
  })


  local response_body = table.concat(sink_tbl)
  log('SmartThings response code: ' .. tostring(code))
  log('SmartThings response body: ' .. response_body)
  return res, code, response_body
end



if cam_set == true then
    if cam_set_status == false then
        set_camera_onoff(livingr_cam_id, true)
  end
elseif cam_set == false then
    if cam_set_status == true then
        set_camera_onoff(livingr_cam_id, false)
    end
end
     


Here is the working postman cURL
Code:
curl --location 'https://api.smartthings.com/v1/devices/***************************/commands' \
--header 'Content-Type: application/json' \
--header 'Authorization: **********' \
--data '{
    
              "commands": [
                {
                  "component": "main",
                  "capability": "switch",
                  "command": "on"
} ]
}'


Thank you for the support

Hi, try to add this in the header, for me works
['content-length'] = #body,
Best regards Cristian

RE: Smartthings status update - Ozturker - 03.10.2025

(03.10.2025, 10:02)CristianAgata Wrote:
(02.10.2025, 18:44)Ozturker Wrote: I receıved below 422
Code:
* string: Request body: {"commands":[{"capability":"switch","command":"on","component":"main"}]}

* string: SmartThings response code: 422

* string: SmartThings response body: {"requestId":"391879646930462279","error":{"code":"ConstraintViolationError","message":"The request is malformed.","details":[{"code":"BodyMalformedError","target":"httpRequestBody","message":"The request body is malformed and cannot be processed by server.","details":[]}]}}

Here is the full code
Code:
local https = require('ssl.https')
local json  = require('json')
local ltn12 = require('ltn12')



-- ⚠️ put your smartthings pat here
local token = '*************'

local livingr_cam_id = '**************************'


-- Camera KNX group objects (choose addresses as needed)
local ga_cam_onoff_set     = grp.create({ datatype = dt.bool,    address = '33/4/1', name = 'Camera On/Off' })
local ga_cam_onoff         = grp.create({ datatype = dt.bool,    address = '33/4/2', name = 'Camera On/Off Status' })
local ga_cam_motion        = grp.create({ datatype = dt.bool,    address = '33/4/11', name = 'Camera Motion Detected' })
local ga_cam_sound         = grp.create({ datatype = dt.bool,    address = '33/4/12', name = 'Camera Sound Detected' })


local cam_set = grp.getvalue(ga_cam_onoff_set)  -- Set
local cam_set_status = grp.getvalue(ga_cam_onoff)  -- Status



-- Helper to turn camera on or off using a raw JSON string
local function set_camera_onoff(cam_id, state)
  local cmd = state and 'on' or 'off'
 
local body = require('json').encode({
  commands = {
    {
      component = 'main',
      capability = 'switch',
      command = cmd,
    }
  }
})


  log('Request body: ' .. body)

  local sink_tbl = {}
  local res, code = https.request({
    url     = 'https://api.smartthings.com/v1/devices/' .. cam_id .. '/commands',
    method  = 'POST',
    headers = {
      ['authorization'] = 'Bearer ' .. token,
      ['content-type']  = 'application/json; charset=utf-8',
      ['accept']        = 'application/json',
    },
    source = ltn12.source.string(body),
    sink   = ltn12.sink.table(sink_tbl),
  })


  local response_body = table.concat(sink_tbl)
  log('SmartThings response code: ' .. tostring(code))
  log('SmartThings response body: ' .. response_body)
  return res, code, response_body
end



if cam_set == true then
    if cam_set_status == false then
        set_camera_onoff(livingr_cam_id, true)
  end
elseif cam_set == false then
    if cam_set_status == true then
        set_camera_onoff(livingr_cam_id, false)
    end
end
     


Here is the working postman cURL
Code:
curl --location 'https://api.smartthings.com/v1/devices/***************************/commands' \
--header 'Content-Type: application/json' \
--header 'Authorization: **********' \
--data '{
    
              "commands": [
                {
                  "component": "main",
                  "capability": "switch",
                  "command": "on"
} ]
}'


Thank you for the support

Hi, try to add this in the header, for me works
['content-length'] = #body,
Best regards Cristian

Thank you Cristian. Thank you both. NOW IT IS WORKING properly.