Use Environment Variables from .env in custom node client html file

Developing Nodes
1

I am developing a custom Node in Node-RED. This node will allow users to interact with different environments (like development, QA, and sandbox) by making HTTP requests to a backend API.

I want to make the default environment selection dynamic based on the NODE_ENV variable defined in my server's .env file. The NODE_ENV variable can be set to development, qa, or sandbox, and I want the environment field in the configuration form to be pre-filled with the corresponding value from this variable.

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2

Hi and welcome to the forum.

What have you tried so far? Are you familiar with Node.js? And how are you starting up Node-RED?

3

tried process.env but it says process is undefined.

4

The editor has no access to process variable.

You need to send the value of your environment variable from the runtime to the editor. Example with the udp node:

  • Editor
  • Runtime
5 
RED.httpAdmin.get('/udp-ports/:id', RED.auth.needsPermission('udp-ports.read'), function(req,res) {
        res.json(Object.keys(udpInputPortsInUse));
    });

What would be the API call for env variables.?

6

Woops, forgot it

const env = RED.util.getSetting(node, "envName")

And something like your-node-type/env

7

I added this const env = RED.util.getSetting(node, "NODE_ENV"). editor html file But it doesnt work. RED.util is undefined.

8

This fonction is for the runtime (your js file).

As I said above, the only way you have in the editor is the httpAdmin API.

9

Solved by DM.