How to use context storage in Node-RED to save data

Поделиться
HTML-код
  • Опубликовано: 28 мар 2022
  • One way to store your data more persistently is to use context storage in Node-RED.
    Learn More:
    www.opto22.com/
    nodered.org/docs/user-guide/w...
    nodered.org/docs/user-guide/c...
    discourse.nodered.org/
    forums.opto22.com/
    More FREE online training
    training.opto22.com/
    All Opto 22 products are designed, manufactured, and supported in the U.S.A. from our Temecula, California headquarters and factory.
    #api #nodered #node #groov #JSON #IoT #Tutorial #learnprogramming #programming #IIoT #automation #javascript #node-REDdashboard

Комментарии • 46

  • @TheNotTakenSeriously
    @TheNotTakenSeriously 3 месяца назад

    I have watched so many of your videos and they are fantastic. When I need to figure something out I will search RUclips and scroll through the other videos until I see your example. So helpful!

  • @douglasvoon9981
    @douglasvoon9981 Год назад +3

    Finally a wonderful and straightforward explanation about context. I really appreciated this tutorial as it helped me conceptualise some approaches I can take to manage data in my flows more effectively. Cheers for that 😀

    • @Opto22
      @Opto22  Год назад

      You're very welcome!

  • @KrastyoKrastev
    @KrastyoKrastev 2 года назад +5

    You deserve a lot more subscribers! You are explaining everything very well

    • @Opto22
      @Opto22  Год назад

      Thanks so much!!!

  • @SprocketN
    @SprocketN 2 года назад +3

    Thanks, your explanation has really helped me understand this aspect of NodeRed

    • @Opto22
      @Opto22  Год назад

      Glad it helped!

  • @higiniofuentes2551
    @higiniofuentes2551 Год назад +1

    Thank you for this very useful video!

    • @Opto22
      @Opto22  Год назад

      You're very welcome!

  • @TheBanfield08
    @TheBanfield08 Год назад

    Excellent video! It helped me a lot! Thanks so much!

    • @Opto22
      @Opto22  Год назад

      Glad it helped!

  • @redwireless
    @redwireless 2 года назад +1

    Yoda reference, touché. Very nice video, tutorial, explanation, clear, easy, concise, engaging - well done!

    • @Opto22
      @Opto22  Год назад +1

      may the force be with you!

  • @ahlifikir8782
    @ahlifikir8782 2 года назад +1

    You deserved a lot of subscribers

  • @Random_Innovation
    @Random_Innovation 2 года назад +1

    Very helpful.

    • @Opto22
      @Opto22  Год назад

      Glad it was helpful!

  • @noemoura903
    @noemoura903 Год назад +1

    muito obrigada, do Brasil 🇧🇷!
    estava precisando justamente disso

  • @wick_bourne
    @wick_bourne 9 месяцев назад

    Great video! THanks :)🙂

    • @Opto22
      @Opto22  7 месяцев назад

      Glad you liked it!

  • @balcubo
    @balcubo Год назад +1

    Thanks so much!!

    • @Opto22
      @Opto22  Год назад

      Thankyou for watching!

  • @dano4700
    @dano4700 2 года назад +1

    Very helpful.
    Cheers 👍🇦🇺

    • @Opto22
      @Opto22  Год назад

      Glad it helped

  • @carringtonfuels9462
    @carringtonfuels9462 Год назад

    Very helpfull thank you
    🤜🌟🤛

    • @Opto22
      @Opto22  Год назад

      So glad it was helpful!

  • @mohammadsoleimanikia9087
    @mohammadsoleimanikia9087 2 года назад +1

    thanks a lot

    • @Opto22
      @Opto22  Год назад

      You are most welcome

  • @thanyasitakkaranarathiwat8641
    @thanyasitakkaranarathiwat8641 Год назад

    Thank you

    • @Opto22
      @Opto22  Год назад

      You're welcome

  • @shankybhilwar711
    @shankybhilwar711 2 года назад +1

    Thanks

    • @Opto22
      @Opto22  Год назад

      Thanks so much!!!

  • @jennifergarner6318
    @jennifergarner6318 Год назад

    Thank you very much for your video. If I use switch node (Dashboard), how to get the present status of switch? I want to get status of many switch then check, compare and given the next step.

  • @kaushalmishra100
    @kaushalmishra100 Год назад

    Thanks for a great video. I have a specific question, in my chat application I am using websocket and one javascript based client.. with one instance of client it works but with more than one.. every client is getting same message from server.. is there a way to fix this

  • @_JustBeingCasual
    @_JustBeingCasual Год назад

    When using the 'Change' node, can you set a default value? I think we are missing that feature?

  • @manologitech
    @manologitech 10 месяцев назад

    Great

    • @Opto22
      @Opto22  7 месяцев назад

      thanks so much

  • @DAPITANVergilP
    @DAPITANVergilP Год назад

    good day sir! let me ask for help sir in how to deploy the node-red dashboard into another website that can be access via the internet sir...

  • @fahranul2181
    @fahranul2181 2 года назад

    Hi, I need help do you know how data warehouse works in node-red..?

  • @leruetkins5565
    @leruetkins5565 Год назад

    How to download exe file from internet link to local drive?

  • @JoseBerruezo
    @JoseBerruezo 2 года назад +1

    Great explanation, but if the node red restarts, do we still have everything saved?

  • @wick_bourne
    @wick_bourne 9 месяцев назад

    I am from a non programming background with little understanding of python. How much do i need to know javascript? I can understand pythons code but with javascript , i face difficulty in understanding

  • @arssandaar
    @arssandaar Год назад

    what is the size of context? I could not find any numbers

    • @developeropto2292
      @developeropto2292 Год назад

      Context payloads are stored to your file system, so it depends on the file storage space of the computer that Node-RED is running on. (But you can also store context to memory, so you should think about how you want to set context up in the settings.js file).

    • @arssandaar
      @arssandaar Год назад

      @@developeropto2292 thanks for the prompt response.
      I checked ~/node-red/ directory, there is no my data. Where to find them and how to check what settings are set by default. It should be known because I did not set anything specific. Is there decent documentation where things are written properly?