@yoonit/nativescript-websocket NPM

Stable Websocket connection
Modern JS Code (ESNext)
Works in emulator and real devices
Timeout configuration
Automatic reconnection
Proxy options
Custom headers
VueJS Plugin

Installation

npm i -s @yoonit/nativescript-websocket

Usage

All the functionalities that the @yoonit/nativescript-websocket provides is accessed through the YoonitWebSocket object. Below we have the basic usage code, for more details, your can see the Methods or the Demo Vue.

VueJS Plugin

main.js

import Vue from 'nativescript-vue'
import YoonitWebSocket from '@yoonit/nativescript-websocket/vue'

Vue.use(
  YoonitWebSocket,
  'wss://echo.websocket.org/',
  {
    protocol: '',
    timeout: 1000,
    headers: [],
    reconnect: true,
    delay: 1000,
    debug: false,
    proxy: {
      address: '',
      port: ''
    }
  }
)

After that, you can access the socket object in your entire project using this.$yoo.socket

Angular, React, Svelte or any other framework

Currently we can't offer any other integration with other frameworks that works on top of NativeScript beyond VueJS, you are totaly open to create and send to us a PR. But, this is a pure NativeScript plugin, if you know how to manipulate your preferred platform you will be capable to include it in your project.

Vue Component

Declaring events using an Yoonit-Style

App.vue

<template>
  <Page @loaded="doLoaded"></Page>
</template>

<script>
export default {
  data: () => ({
    interval: null
  }),
  methods: {
    doLoaded () {
      // start the connection
      this.$yoo.socket.open()
    },
    doPing () {
      this.interval = setInterval(() => {
        if (!this.$yoo.socket.getStatus()) {
          return console.log('[YooSocket] Socket closed')
        }

        console.log("[YooSocket] Sending 'echo' message!")

        // add your message/file to queue and call 'send' method
        return this.$yoo.socket.push('echo')
      }, 2000)
    }
  },
  yoo: {
    socket: {
      events: {
        open ($socket) {
          console.log("[YooSocket] Hey! I'm connected!")

          clearInterval(this.interval)
          return this.doPing()
        },
        message ($socket, message) {
          if (!message) {
            console.log("[YooSocket] Message is empty")
          }

          console.log(`[YooSocket] Received Message: '${message}'!`)
        },
        close () {
          console.log("[YooSocket] Socket was closed")
        },
        error () {
          console.log("[YooSocket] Socket had an error")
        }
      }
    }
  }
}
</script>

Or declaring events using your own already created methods

App.vue

<template>
  <Page @loaded="doLoaded"></Page>
</template>

<script>
export default {
  data: () => ({
    interval: null
  }),
  methods: {
    doLoaded () {
      // start the connection
      this.$yoo.socket.open()

      // declare all callback events
      this.$yoo.socket.events({
        open: this.doSocketOpen,
        message: this.doReceivedMessage,
        close: this.doSocketClose,
        error: this.doSocketError
      })
    },

    doPing () {
      this.interval = setInterval(() => {
        if (!this.$yoo.socket.getStatus()) {
          return console.log('[YooSocket] Socket closed')
        }

        console.log("[YooSocket] Sending 'echo' message!")

        // add your message/file to queue and call 'send' method
        return this.$yoo.socket.push('echo')
      }, 2000)
    },

    doSocketOpen ($socket) {
      console.log("[YooSocket] Hey! I'm connected!")

      clearInterval(this.interval)

      // onOpen event calls your function
      return this.doPing()
    },

    doSocketClose () {
      // onClose event
      return console.log('[YooSocket] Socket was closed')
    },

    doSocketError () {
      // onError event
      return console.log('[YooSocket] Socket had an error')
    },

    doReceivedMessage ($socket, message) {
      // onMessage event
      return console.log(`[YooSocket] Received Message: '${message}'!`)
    },
  }
}
</script>

API

Methods

Function	Parameters	Valid values	Return Type	Description
`openAsync`	timeout	any positive number, default 1000 (ms)	void	Wait `timeout` to start the connection
`open`	-	-	void	Start immediately the connection
`on`	event, callback	string, function	void	Include an event, every that your server sent an event of this type, your callback will be invoked
`off`	event, callback	string, function	void	Exclude an event
`events`	callbacks	object with functions `{ open: [], close: [], message: [], error: [], fragment: [], handshake: [] }`	void	You can use an `Array` of callbacks in each event. Use this to add a batch of events at once
`getStatus`	-	-	boolean	You can use this method to check the connection status
`push`	content	string/blob	void	Send files or strings to server. You can use this method to make uploads for example
`destroy`	-	-	void	Destroy server connection
`close`	code, message	number, string	void	Close server connection programmatically offering an reason
`queueLength`	-	-	number	Get the total pending items to be sent
`isOpen`	-	-	boolean	Get connection status
`isClosed`	-	-	boolean	Get connection status
`isClosing`	-	-	boolean	Get connection status
`isConnecting`	-	-	boolean	Get connection status

Properties

Property	Return Type
`protocol`	string
`timeout`	number
`headers`	array
`reconnect`	boolean
`delay`	number
`debug`	boolean
`proxy`	object
`callbacks`	object
`url`	string
`opened`	boolean