Can somebody please explain how can a third party plugin library like for instance Chart.js be locally installed into node-red? If I download Chart.js from github I get actually a Chart.js-master root directory with a lot of subdirectories and files. Do I have to copy everything into the node-red in…

Hi @knolleary , i was trying to create a flow with the node able to get notification on changes using SSE technology. I created a function node and added the script var source = new EventSource("http://localhost:8080/api/2/things?ids=smart:factory_lwb"); source.onmessage = function(msg) { console.lo…

Hi @Miliks installing a node module does not make it automatically available to the Function node. The docs show the additional steps you have to do through: https://nodered.org/docs/writing-functions#loading-additional-modules Nick

Thank you very much for your response, it was really helpful! So i put the following code into the function node: msg.options = []; var EventSource = global.get('oseventsource'); var source = new EventSource("http://localhost:8080/api/2/things?ids=smart:factory_lwb"); source.onmessage = function(m…

You have to use node.send() inside the callback to get the values...

Could you please explain what do u mean?

Maybe you could search for "node.send" on the same page Nick gave you? Or maybe "callback"? A little activity (like reading the basic docs or using search and / or google) before, would help us all :slight_smile:

The function as you have it will return immediately, before onmessage gets called, so you need to build the message inside the onmessage function and then use node.send to send it. Note though that there will only ever be one entry in the array if you do it like that. If you want to build a comple…

[image] Miliks: i was trying to create a flow with the node able to get notification on changes using SSE technology. Did you consider using the existing SSE node for that purpose ? [image] [ANNOUNCE] node-red-contrib-sse-client Share Your Nodes Hi folks, A couple…

Thanks for the suggestion, i didn't know about this specific node. I tryed it out, but i'm getting the 401 error during deployment phase. The URL i'm trying to get notification about is password protected, so i added the header to the form as on image attached. Do i miss something or there some pro…

You say it works using REST client, then I suggest doing a test where you configure the authentication in the msg headers. The doc for the node says: When the Http headers are not specified in the config screen, they can be specified in the msg.headers field. If it fails then you may try to t…

Node-RED

Node-RED Forum

Import JavaScript library into node-red

Dashboard

Andrei 17 May 2019 18:07 15

Did you consider using the existing SSE node for that purpose ?

Topic		Replies	Views
Call js file from template node Dashboard	6	1195	29 November 2020
Load Chart.js in UI template locally Dashboard	2	1229	10 February 2020
How to import a chart into my template without using cdn Dashboard dashboard-2 , ui-template	6	170	16 July 2024
Import a library by global method vs script src method General	14	2783	28 August 2019
Library and node in one package Developing Nodes	41	1607	24 April 2022

Copyright OpenJS Foundation and Node-RED contributors. All rights reserved. The OpenJS Foundation has registered trademarks and uses trademarks. For a list of trademarks of the OpenJS Foundation, please see our Trademark Policy and Trademark List. Trademarks and logos not indicated on the list of OpenJS Foundation trademarks are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.

Import JavaScript library into node-red

Related topics