MQTT using Node.js with practical examples
Вставка
- Опубліковано 10 січ 2023
- This post/video will show you how to get started using MQTT in a Node.js environment with some practical projects using CLI and an Express web application.
We are using mqtt.js in the frontend applications to retrieve MQTT messages from our Mosquitto broker.
WriteUp:
www.donskytech.com/mqtt-node-js/
Publish and Subscribe MQTT messages over WebSocket:
• Publish and Subscribe ...
Code:
github.com/donskytech/mqtt-node
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#mqtt
#mosquitto
#node
#express
#mqtt.js - Наука та технологія
![Lp. Последняя Реальность #107 РОДНОЙ ДОМ [Финал] • Майнкрафт](http://i.ytimg.com/vi/IK3QKzKUlHM/mqdefault.jpg)
Amazing video! Thank you so much for the content
Glad you enjoyed it! Happy exploring!
It would be so good if you make video about mqtt in react-native.
Hey, I have plans of doing this actually in the future. Please subscribe to my channel to get notified. Thank you!
Hi Sir and thank you for your nice work here.
I tried your cli-project and I am stuck at the problem that my Mosquitto broker requires user an password to authorise access.
Where and how would one include those parameters or arguments?
Hey, I forgot the API code but you could send it in the Javascript also.
Just a dummy question, Can I publish and getting Subscribe at the same time? I want apply to my arduino, so i can active sensors and showing up into an angular app, that can modify them too. Thanks!
Not a dummy question as this is a possible use case. So yes, you could subscribe and publish at the same time
@@DonskyTech thanks! Dont know if you can help me with another Big problem that i have.
I configured my mqtt mosquitto server with stl and works nice with mqtt Explorer and with node.js, the problem its i dont know how configure Arduino to connect with It. All examples are with the Port 1883 and nothing about certificates or expired function like .setCaCertificate. Can you tell me some tips to looking for? Were looking for info like 4 days but without luck.
Thanks!
When i configure my ESP8266 with subpubclient and wificlientsecure and set the certs with setClientRsaCert (for client) and setTrustAnchors(for ca) all compile bit the server respond with: New connection from 'ip' on Port 8883. Client disconnected: protocol error.
Pls u know what can i do to fix It? Thanks in Advance!
bro how if i want to send data to devices ? (on/off device or something else)
why my console on /subscriber return "connection to websocket failed" :((
Hmmm... Is there any console logs from the browser and also the server? There should be a message that could lead you to the cause of the error.
@@DonskyTech i finally found my problem, thank u
Great! Glad you figured it out. Happy exploring!
Hi @vandc1684 could you share how you resolve this problem I am also facing the same issue. thanks
how would i publish a video?
Hey, video? What do you mean?
Is it work offline?
Hey if the Mosquitto server will run with the same web application then it should run
super difficult example, please make it more simple
Hey, have you checked the writeup? It requires knowledge of Node.js and Javascript and the example project is simple enough for beginners as long as you know javascript.