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actioncable-vue

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actioncable-vue

A Vue plugin that makes integrating ActionCable easy.


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Maintainers
1
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9,389
increased by46.04%

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ActionCableVue is an easy-to-use Action Cable integration for VueJS.

🚀 Installation
npm install actioncable-vue --save
// Vue 2.x
import Vue from "vue";
import ActionCableVue from "actioncable-vue";
import App from "./App.vue";

Vue.use(ActionCableVue, {
  debug: true,
  debugLevel: "error",
  connectionUrl: "ws://localhost:5000/api/cable", // or function which returns a string with your JWT appended to your server URL as a query parameter
  connectImmediately: true,
});

new Vue({
  router,
  store,
  render: (h) => h(App),
}).$mount("#app");
// Vue 3.x
import { createApp } from "vue";
import App from "./App.vue";
import ActionCableVue from "actioncable-vue";

const actionCableVueOptions = {
  debug: true,
  debugLevel: "error",
  connectionUrl: "ws://localhost:5000/api/cable",
  connectImmediately: true,
};

createApp(App)
  .use(store)
  .use(router)
  .use(ActionCableVue, actionCableVueOptions)
  .mount("#app");
ParametersTypeDefaultRequiredDescription
debugBooleanfalseOptionalEnable logging for debug
debugLevelStringerrorOptionalDebug level required for logging. Either info, error, or all
connectionUrlString/FunctionnullOptionalActionCable websocket server url. Omit it for the default behavior
connectImmediatelyBooleantrueOptionalActionCable connects to your server immediately. If false, ActionCable connects on the first subscription.
storeObjectnullOptionalVuex store
Table of content
Wall of Appreciation
  • Many thanks to @x88BitRain for adding Vue 3 compatibility
☕ Support ActionCable-Vue

If you'd like to donate to support the continued development and maintenance of actioncable-vue, you can do so here.

🌈 Component Level Usage

If you want to listen to channel events from your Vue component, you need to either add a channels object in the Vue component, or if you're using vue-class-component define a channels property. Each defined object in channels will start to receive events provided you subscribe correctly.

new Vue({
  data() {
    return {
      message: "Hello world",
    };
  },
  channels: {
    ChatChannel: {
      connected() {},
      rejected() {},
      received(data) {},
      disconnected() {},
    },
  },
  methods: {
    sendMessage: function () {
      this.$cable.perform({
        channel: "ChatChannel",
        action: "send_message",
        data: {
          content: this.message,
        },
      });
    },
  },
  mounted() {
    this.$cable.subscribe({
      channel: "ChatChannel",
      room: "public",
    });
  },
});

Alternative definition for vue-class-component users.

@Component
export default class ChatComponent extends Vue {
  @Prop({ required: true }) private id!: string;

  get channels() {
    return {
      ChatChannel: {
        connected() {
          console.log("connected");
        },
        rejected() {},
        received(data) {},
        disconnected() {},
      },
    };
  }

  sendMessage() {
    this.$cable.perform({
      channel: "ChatChannel",
      action: "send_message",
      data: {
        content: this.message,
      },
    });
  }

  async mounted() {
    this.$cable.subscribe({
      channel: "ChatChannel",
      room: "public",
    });
  }
}
✨ Subscriptions
1. Subscribing to a channel

Define a channels object in your component matching the action cable server channel name you passed for the subscription.

new Vue({
  channels: {
    ChatChannel: {
      connected() {
        console.log("I am connected.");
      },
    },
  },
  mounted() {
    this.$cable.subscribe({
      channel: "ChatChannel",
    });
  },
});
Important

ActionCableVue automatically uses your ActionCable server channel name if you do not pass in a specific channel name to use in your channels. It will also override clashing channel names.

2. Subscribing to the same channel but different rooms
new Vue({
  channels: {
    chat_channel_public: {
      connected() {
        console.log("I am connected to the public chat channel.");
      },
    },
    chat_channel_private: {
      connected() {
        console.log("I am connected to the private chat channel.");
      },
    },
  },
  mounted() {
    this.$cable.subscribe(
      {
        channel: "ChatChannel",
        room: "public",
      },
      "chat_channel_public",
    );
    this.$cable.subscribe(
      {
        channel: "ChatChannel",
        room: "private",
      },
      "chat_channel_private",
    );
  },
});
3. Subscribing to a channel with a computed name
// Conversations.vue

new Vue({
  methods: {
    openConversation(conversationId){
      this.$router.push({name: 'conversation', params: {id: conversationId});
    }
  }
});
// Chat.vue

new Vue({
  channels: {
    computed: [
      {
        channelName() {
          return `${this.$route.params.conversationId}`;
        },
        connected() {
          console.log("I am connected to a channel with a computed name.");
        },
        rejected() {},
        received(data) {},
        disconnected() {},
      },
    ],
  },
  mounted() {
    this.$cable.subscribe({
      channel: this.$route.params.conversationId,
    });
  },
});
🎃 Unsubscriptions

When your component is destroyed ActionCableVue automatically unsubscribes from any channel that component was subscribed to.

new Vue({
  methods: {
    unsubscribe() {
      this.$cable.unsubscribe("ChatChannel");
    },
  },
  mounted() {
    this.$cable.subscribe({
      channel: "ChatChannel",
    });
  },
});
👺 Manually connect to the server

ActionCableVue automatically connects to your Action Cable server if connectImmediately is not set to false during setup. If you do set connectImmediately to false you can manually trigger a connection to your ActionCable server with this.$cable.connection.connect.

new Vue({
  methods: {
    connectWithRefreshedToken(token) {
      // You can optionally pass in a connection URL string
      // You can optionally pass in a function that returns a connection URL
      // You can choose not to pass in anything and it'll reconnect with the connection URL provided during setup.
      this.$cable.connection.connect(
        `ws://localhost:5000/api/cable?token=${token}`,
      );
    },
  },
});
👽 Disconnecting from the server
new Vue({
  methods: {
    disconnect() {
      this.$cable.connection.disconnect();
    },
  },
});
💎 Performing an action on your Action Cable server

Requires that you have a method defined in your Rails Action Cable channel whose name matches the action property passed in.

new Vue({
  channels: {
    ChatChannel: {
      connected() {
        console.log("Connected to the chat channel");
      },
      received(data) {
        console.log("Message received");
      },
    },
  },
  methods: {
    sendMessage() {
      this.$cable.perform({
        channel: "ChatChannel",
        action: "send_message",
        data: {
          content: "Hi",
        },
      });
    },
  },
  mounted() {
    this.$cable.subscribe({
      channel: "ChatChannel",
    });
  },
});
🐬 Usage with Vuex

ActionCableVue has support for Vuex. All you have to do is setup your store correctly and pass it in during the ActionCableVue plugin setup.

// store.js

import Vue from "vue";
import Vuex from "vuex";

Vue.use(Vuex);

export default new Vuex.Store({
  state: {},
  mutations: {
    sendMessage(state, content) {
      this.$cable.perform({
        action: "send_message",
        data: {
          content,
        },
      });
    },
  },
  actions: {
    sendMessage({ commit }, content) {
      commit("sendMessage", content);
    },
  },
});
import store from "./store";
import Vue from "vue";
import ActionCableVue from "actioncable-vue";

Vue.use(ActionCableVue, {
  debug: true,
  debugLevel: "all",
  connectionUrl: process.env.WEBSOCKET_HOST,
  connectImmediately: true,
  store,
});
💪 Usage with Nuxt.JS

ActionCableVue works just fine with Nuxt.JS. All you need to do is set it up as a client side plugin.

// /plugins/actioncable-vue.js

import Vue from "vue";
import ActionCableVue from "actioncable-vue";

if (process.client) {
  Vue.use(ActionCableVue, {
    debug: true,
    debugLevel: "all",
    connectionUrl: process.env.WEBSOCKET_HOST,
    connectImmediately: true,
  });
}

Don't forget to register your plugin.

// nuxt.config.js
/*
 ** Plugins to load before mounting the App
 */
plugins: [{ src: "@/plugins/actioncable-vue", ssr: false }];

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Last updated on 11 Nov 2021

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