Emit not working, while raw emit does

[VenSlazer]

Hello,

I'm trying to emit an event from a controller in Strapi. The Update-Route itself is accessible for authenticated users.
Hovewer, I don't receive anything on the client side. Whereas if I'm using the raw emit, I do get all the events.

What am I doing wrong?

Here is the Server-Code:

'use strict';

/**
 *  waermepumpe controller
 */

const { createCoreController } = require('@strapi/strapi').factories;

module.exports = createCoreController(
  'api::waermepumpe.waermepumpe',
  ({ strapi }) => ({
    async update(ctx) {
      const response = await super.update(ctx);

      // Get relevant heat-pump operation data
      const maschineState = await strapi.entityService.findOne(
        'api::waermepumpe.waermepumpe',
        response.data.id,
        {
          fields: ['Maschine_State', 'WP_ID'],
        }
      );
      strapi.$io.emit('api::waermepumpe.waermepumpe.updateMaschineState', {
        [maschineState.WP_ID]: maschineState.Maschine_State,
      });
      return response;
    },
  })
);

And here is the Client-Code (Vue-JS):

<script setup>
import TheWelcome from "../components/TheWelcome.vue";
import { io } from "socket.io-client";
import { onUnmounted } from "vue";

//  connect to socket server
const SERVER_URL = "http://localhost:1337/";
const socket = io(SERVER_URL, {
  auth: {
    token:
      "Obviously not the Real JWT",
  },
});

//  wait until socket connects before adding event listeners
socket.on("connect", () => {
  console.log("Connected to socket server");

  //  listen for updateUnitData event
  socket.on("updateMaschineState", (data) => {
    console.log(data);
  });
});

onUnmounted(() => {
  //  disconnect socket when component is unmounted
  socket.disconnect();
});
</script>

<template>
  <main>
    <TheWelcome />
  </main>
</template>

[ComfortablyCoding]

For the server emit it expects the action to match up with the relevant permission name (see supported events).

On the server side updateMaschineState should be update to match the permission. On the client side updateMaschineState should be waermepumpe:update to match the constructed emit syntax.

The emit raw doesn't check anything nor does it construct event name. It emits whatever it receives.