Integrating Legrand Netatmo Gateway with ELAN : Request for Local API Access

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  mailpublic35

  • July 14, 2025 16:56

  Hello,
  
  Do you have look to https://dev.netatmo.com/apidocumentation/ ?
  
  I collect many data from Netatmo (weather station, camera) but nothing can be local,  I must obtain a token  then collect data  (ex:  weather station, camera) or do an action (ex: camera)
  
  I shared code to manage tokens here: https://github.com/Phil353556/netatmo-manage-tokens

  Phil [ only a user ]

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  rafaeldabbas

  • July 14, 2025 20:03

  Hi Phil,

  Thank you for sharing these resources! I’ve already checked the official Netatmo API documentation, and I understand it relies on cloud-based communication with OAuth2 token authentication.

  For this specific integration with the ELAN G2 controller, the goal is to explore whether local API access (direct LAN communication with the gateway) is possible to avoid dependency on the cloud for latency and reliability reasons.

  Your GitHub project for token management looks very helpful for cloud API implementations. I’ll definitely take a closer look at it.

  If you (or anyone else) comes across any information about local access to the gateway, even via undocumented endpoints or developer/debug modes, it would be great to know.

  Thanks again for your input!

  Rafael Abbas

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  mailpublic35

  • July 15, 2025 07:48

  Hello Rafael,
  
  Thank you
  I don't think local access is possible.
  " to avoid dependency on the cloud for latency and reliability reasons."  
  I understand these reasons. Overall the reliability is good, even if some "down" can happen
  
  URLs to know:
  https://health.netatmo.com/posts/dashboard
  https://helpcenter.netatmo.com/hc/en-us/sections/10390237686930-Service-notifications

  @Leslie: community manager for these API pages can help you and give you the right answer.
  
  Phil

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  rafaeldabbas

  • July 15, 2025 15:23

  Hi Phil,

  Thank you again for the valuable information and for sharing these URLs. The token management repository you shared is proving to be very useful for testing and understanding how to interact with the Netatmo API.

  I fully agree with your point about the general reliability of the cloud API, but for this project we’re still exploring every possibility of a local integration for scenarios where cloud independence is critical.

  You mentioned @Leslie as the community manager for the API pages—do you know the best way to contact Leslie directly about this question? Should I use the Netatmo developer forum, or is there a preferred email or contact channel?

  Any guidance or introduction you could share would be highly appreciated.

  Thanks again for your support!

  Rafael Abbas

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• 

  mailpublic35

  • July 16, 2025 07:29

  Hello,
  If you explore posts from: https://helpcenter.netatmo.com/hc/fr/community/topics/5892346495378--EN-API-automation-and-external-services
  you will find this URL
  https://dev.netatmo.com/contact-us-form
  use the second item about API 
  Phil

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• 

  rafaeldabbas

  • July 16, 2025 18:47

  Hi Phil,

  Thank you very much for the information and the link you provided – it’s been extremely helpful so far.

  I’ve managed to register the application, generate the tokens, and authenticate successfully. However, I’m currently struggling with the webhook part at the end of the tutorial.

  I can’t seem to find the plantId information, which is required to proceed. Other than that, I understand that each Elan controller will make a request to our API subscription on Legrand, and we’ll need to handle token refresh every hour while also polling device data.

  At this stage, I haven’t yet managed to make a direct request to the gateway. I’ll try using the link you shared to contact @Leslie as well, to see if they can assist with these final steps.

  Thanks again for all your support – every piece of guidance is greatly appreciated!

  Best regards,
  Rafael

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• 

  mailpublic35

  • July 16, 2025 19:08

  Hi Rafael,
  Happy to help.
  
  I'm sorry as I cannot help you more, as I don't have this product "Elan controller".
  So Leslie / Netatmo is definitely the person who can answer to you.
  The access_token is valid for three hours, the refresh_token doesn't expired,  may be the values are differents for an Elan controller.
  I use my script (already shared) to manage tokens which are then used to manage flood light of netatmo external camera, using a simple button connected via zigbee to a domoticz platform. [ https://github.com/Phil353556/netatmo-floodlight ] 
  
  I asked the question to a LLM, the anwser is awesome.
  question: "how to use plantid with netatmo api to exchange data with an Elan controller?"

  You should give a try :-)
  Phil [ only a user ]
  
  

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• 

  rafaeldabbas

  • Edited July 29, 2025 10:39

  Hi Phil,

  I could use a bit of help troubleshooting an authentication issue.

  I’ve been testing the Netatmo API using the API Explorer on the developer site, and everything works fine when I use the “Try it out” button. The token generated there allows me to send requests and receive valid responses.

  However, when I try to use a token that I generate myself via the standard OAuth2 flow (using the following credentials):

  • Client ID: 68xxxxxxxxxxxxxxxxxxxxxxb85

  • Client Secret: Nrxxxxxxxxxxxxxxxxxxxxxxxxxxxtl

  …the API responds with “denied”, even though the token is accepted during the OAuth flow and appears valid.

  I’ve triple-checked the scopes (read_plant, read_device, etc.) and the grant type (authorization_code). Everything seems correct.

  What might I be missing here? Is there something different about how the test site token is generated versus manual authentication?

  Appreciate any insights or suggestions.

  Thanks again,
  Rafael

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• 

  mailpublic35

  • July 28, 2025 16:46

  Hello Rafael,
  
  Please modify your post .. DO NO share full Client ID and Client Secret 
  for example use:
  Client ID: 68xxxxxxxxxxxxxxxxxxxxxxb85
Client Secret: Nrxxxxxxxxxxxxxxxxxxxxxxxxxxxtl

May be it can help you: Have a look here with the answer from @Leslie
https://helpcenter.netatmo.com/hc/fr/community/posts/23896792864658-API-homesdata-and-homestatus

Phil [ just a user ]



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• 

  rafaeldabbas

  • July 29, 2025 10:52

  Hi Phil,

  Thanks a lot for the quick reply — I really appreciate it. I’ll check it out right away and let you know how it goes.

  Best,
  Rafael

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  mailpublic35

  • August 03, 2025 20:09

  Hello Rafael,
  Sorry for delay .. personal event.
  Just a reminder ... email address  / client id / refresh_token  and so one should not be in clear text ...  these are your personal data 
  
  I'm sorry for you.
  Question: do you success to use the refresh_token to get another new couple  of refresh_token and access_token?
  
  My remark .. reading your post:
  -I don't know is http://localhost:3000 is ok for your configuration and for magellan.
   May you try without :3000?
   Fyi: I use: redirect_uri=http://localhost/
  -the steps describe soon good, and are similar to the process I followed  but I'm just a user 
  
  Phil

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• 

  rafaeldabbas

  • August 04, 2025 00:52

  Hi Phil,

  Thank you so much — seriously, without your help I’d still be stuck!

  I spent some time reading other posts with similar issues, and noticed that a few users were able to fix the problem by recreating the application. I tried the same approach — deleted the old one, created a new app from scratch — and it finally worked! I can now generate tokens and make API calls without getting “denied”.

  About the screenshots — you're totally right, I shouldn’t have posted client_id and refresh_token in clear text. I only did it because it was getting really hard to explain the issue otherwise. But now that things are working, I’ll go ahead and delete those images.

  Thanks again for your support — it made a huge difference.

  Cheers,
  Rafael

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  mailpublic35

  • August 05, 2025 10:35

  Hello Rafael,
  
  I'm really happy for you, and I'm happy to help.
  Yes, the configuration can be sometimes ... stricky.
  I shared two scripts in github to share my experience,  and share something that works :-)
  Since the beginning of this year, it works like a charm.
  
  Have a nice day
  Phil

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