# Listening on node events

**URL:** <https://discourse.nodered.org/t/listening-on-node-events/78633>\
**Category:** General\
**Created:** [23 May 2023 12:00 UTC](https://discourse.nodered.org/t/listening-on-node-events/78633 "2023-05-23T12:00:00Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![mradvanyi](https://avatars.discourse-cdn.com/v4/letter/m/3ec8ea/32.png) [@mradvanyi](https://discourse.nodered.org/u/mradvanyi)\
**Post date:** [23 May 2023 12:00 UTC](https://discourse.nodered.org/t/listening-on-node-events/78633/1 "2023-05-23T12:00:00Z")

</div>

Hello everyone,  
I have embedded nodered. I’m working with the runtime-api.  
I can launch the runtime and a flow and I'm able to find and send messages to a flow.

I want to send a message to node A and listen to what is coming to node B.  
I tried to use node.on("input", (msg) =\> {}) but with no luck maybe I misunderstood something.

my code:

```auto
let http = require('http');
let express = require("express");
let RED = require("node-red");

// Create a server
let server = http.createServer(express());

// Create the settings object - see default settings.js file for other options
let settings = {
    httpAdminRoot:"/red",
    httpNodeRoot: "/api",
    userDir:".node-red/",
    functionGlobalContext: { }, // enables global context
    // logging:"off"
};

// Initialise the runtime with a server and settings
RED.init(server,settings);

let flows=[{"id":"84378caad4a2edd5","type":"tab","label":"Flow 2","disabled":false,"info":"","env":[]},{"id":"a8b383355363e036","type":"inject","z":"84378caad4a2edd5","name":"entry","props":[{"p":"payload"},{"p":"topic","vt":"str"}],"repeat":"","crontab":"","once":false,"onceDelay":0.1,"topic":"","payload":"123","payloadType":"str","x":430,"y":80,"wires":[["25cef7ec4e5ffb25"]]},{"id":"25cef7ec4e5ffb25","type":"debug","z":"84378caad4a2edd5","name":"debug","active":true,"tosidebar":true,"console":true,"tostatus":false,"complete":"true","targetType":"full","statusVal":"","statusType":"auto","x":700,"y":100,"wires":[]}]
RED.start().then( async () => {
    await RED.runtime.flows.setFlows({flows: {flows}})
    let {flows: nodeObjects} = await RED.runtime.flows.getFlows({user:'admin'});
    let inputNodeObject = nodeObjects.find((f) => (f.name == 'entry'))
    let outputNodeObject = nodeObjects.find((f) => (f.name == 'debug'))

    await RED.runtime._.nodes.load()
    let inputNode = (await RED.runtime._.nodes.getNode(inputNodeObject.id));
    let outputNode = (await RED.runtime._.nodes.getNode(outputNodeObject.id));

    console.log(outputNode);
    inputNode.send({payload: "world hello"});

    outputNode.on("input", (msg) => {
        console.info(`-----------------------------------`);
        console.info(`msg:`);
        console.info(msg);
    });
})

```

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/flex026/uploads/nodered/original/1X/d073cd938eafa2e558d7c2cd59003b3ef4963033.png) [@system](https://discourse.nodered.org/u/system)\
**Post date:** [22 July 2023 12:00 UTC](https://discourse.nodered.org/t/listening-on-node-events/78633/2 "2023-07-22T12:00:37Z")

</div>

This topic was automatically closed 60 days after the last reply. New replies are no longer allowed.