Hi
I’m develop edge driver with LAN device.
I added search-parameters.yaml and do mdns.discover(“_my-service-name._tcp”, “local”)
mdns:
in top of the init.lua, I write log.info(“init!”)
After I run logcat, terminal shows connected.
But, no log shown when I try to scan devices in SmartThings APP.
My hub is V2, and FW version is 000.052.00021.
I’m unclear as to whether you have written your discovery handler yet.
You may find it easier to leave adding search-parameters.yaml until you’ve got things working reliably without it.
I declared discovery in Driver
disco.lua
function MyServiceDiscovery.discover(driver, _, should_continue)
log.info("Okay, Start discover...")
while should_continue() do
local mdns_responses, err = mdns.discover(MyServiceDiscovery.ServiceType, MyServiceDiscovery.Domain)
log.info("Start discover...")
if err ~= nil then
log.error("Error during service discovery: ", err)
return
end
for _, info in ipairs(mdns_responses.found) do
log.info(info)
end
socket.sleep(1.0)
end
end
return MyServiceDiscovery
init.lua
local disco = Discovery.discover
local template = {
discovery = disco,
lifecycle_handlers = {
init = device_init,
},
supported_capabilities = {
capabilities.refresh,
},
}
device_init = function(driver, device)
log.info("device init")
end
local drvier = Driver("MyService", template)
log.info("Starting MyService driver")
drvier:run()
log.warn("MyService driver exiting")
Additionaly, log.info(“Starting MyService driver”) this not appears too. 
No mDNS discovery, no init.
PS. I can find my service with mDNS discovery APP which can be found in Google PlayStore.
Hi, @ranni
I asked the engineering team about your case and they mentioned you should check the following:
discovery permission in their config.yml. For example:name: 'Temperature'
packageKey: 'Temperature'
description: 'Temperature'
vendorSupportInformation: '...'
permissions:
lan: {}
discovery: {}
I was expecting to see:
local disco = require "disco"
and then in the template
discovery = disco.discover
Do you have something like
local Discovery = require "disco"
earlier in the init.lua file instead?
You wouldn’t expect to see the device.init log even if your discovery routine runs because it hasn’t created a device. So there is nothing for the driver to initialise.
Hi @nayelyz
I follow your answer
name: "MyServiceDriver"
packageKey: "myservice.local"
description: "MyService local driver"
vendorSupportInformation: "MyService"
permission:
lan: {}
discovery: {}
@ranni It looks like you have not included local log = require "log" anywhere in your init.lua code. That means that your driver will crash immediately before it can call :run() when it tries to log the starting message.
Hi. @doug.stephen
this is really whole code of mine
I just started write code, it’s so simple.
4 files.
src/disco.lua
local log = require "log"
-- local old_log = require "log"
-- old_log.error = function(...)
-- old_log.error_with({ hub_logs = true }, ...)
-- end
-- old_log.warn = function(...)
-- old_log.warn_with({ hub_logs = true }, ...)
-- end
-- old_log.info = function(...)
-- old_log.info_with({ hub_logs = true }, ...)
-- end
-- local log = {}
-- log.warn = old_log.warn
-- log.error = old_log.error
-- log.debug = old_log.debug
-- log.trace = old_log.trace
-- log.info = old_log.info
local socket = require "cosock.socket"
local mdns = require "st.mdns"
local net_utils = require "st.net_utils"
local st_utils = require "st.utils"
local SERVICE_TYPE = "_worlty._tcp"
local DOMAIN = "local"
local WorltyDiscovery = {
ServiceType = SERVICE_TYPE,
Domain = DOMAIN,
device_state_cache = {},
discovery_active = false
}
local WorltyTypeEnum = {
"none",
"binary_sensor",
"climate",
"fan",
"event",
"input",
"light",
"sensor",
"switch"
}
function WorltyDiscovery.discover(driver, _, should_continue)
log.info("Okay, Start discover...")
while should_continue() do
local mdns_responses, err = mdns.discover(WorltyDiscovery.ServiceType, WorltyDiscovery.Domain)
log.info("Start discover...")
if err ~= nil then
log.error("Error during service discovery: ", err)
return
end
for _, info in ipairs(mdns_responses.found) do
log.info(info)
end
socket.sleep(1.0)
end
end
return WorltyDiscovery
src/init.lua
local log = require "log"
-- local old_log = require "log"
-- old_log.error = function(...)
-- old_log.error_with({ hub_logs = true }, ...)
-- end
-- old_log.warn = function(...)
-- old_log.warn_with({ hub_logs = true }, ...)
-- end
-- old_log.info = function(...)
-- old_log.info_with({ hub_logs = true }, ...)
-- end
-- local log = {}
-- log.warn = old_log.warn
-- log.error = old_log.error
-- log.debug = old_log.debug
-- log.trace = old_log.trace
-- log.info = old_log.info
log.info("init!")
local capabilities = require "st.capabilities"
local Driver = require "st.driver"
local Discovery = require "disco"
local disco = Discovery.discover
local device_init
local template = {
discovery = disco,
lifecycle_handlers = {
init = device_init,
},
supported_capabilities = {
capabilities.refresh,
},
}
device_init = function(driver, device)
log.info("device init")
end
local drvier = Driver("Worlty", template)
log.info("Starting Worlty driver")
drvier:run()
log.warn("Worlty driver exiting")
config.yaml
name: "WorltyDriver"
packageKey: "worlty.local"
description: "Worlty local driver"
vendorSupportInformation: "Worlty"
permission:
lan: {}
discovery: {}
profiles/worlty-pad.yaml
name: worlty-pad
components:
- id: main
capabilities:
- id: refresh
version: 1
There’s a typo here, it should be permissions, once I modified that, the logs started showing.
Note: You need to delete the package completely and re-create it to update this section, otherwise you’ll get an error when trying to package the driver again.
Oh my eyes…what a shame
Sorry for that
Thanks a lot