@TotallyInformation:
Thank you for this information, however I am right now getting a ton of Converting Circular structure to JSON coming from the uibuilder. (Sometimes multiple times a second).
Full Error message:
TypeError: Converting circular structure to JSON
--> starting at object with constructor 'IncomingMessage'
| property 'res' -> object with constructor 'ServerResponse'
--- property 'req' closes the circle
Here is the code of the uibuilder:
index.html:
<!doctype html>
<html lang="en"><head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>Epicenter Hotel/Casino Elevator Information System</title>
<link type="text/css" rel="stylesheet" href="../uibuilder/vendor/bootstrap/dist/css/bootstrap.min.css" />
<link type="text/css" rel="stylesheet" href="../uibuilder/vendor/bootstrap-vue/dist/bootstrap-vue.css" />
<!-- Your own CSS -->
<link type="text/css" rel="stylesheet" href="./index.css" media="all">
</head><body>
<div id="app" class="uib" v-cloak>
<!-- All UI code needs to be in here -->
<p class="timerText">{{msg.formattedTimeRemaining}}</p>
<p class="clueText">{{msg.clueText}}</p>
<p class="exitCode">{{msg.exitCode}}</p>
<p class="messageTest">R: <b>{{msgsReceived}}</b>, S: <b>{{msgsSent}}</b></p>
<b-container id="app_container">
<!-- Wraps the bootstrap-vue formatting -->
</b-container>
</div>
<!-- #region Supporting Scripts. These MUST be in the right order. Note no leading / -->
<script src="../uibuilder/vendor/socket.io/socket.io.js">/* REQUIRED: Socket.IO is loaded only once for all instances. Without this, you don't get a websocket connection */</script>
<!-- Vendor Libraries - Load in the right order, use minified, production versions for speed -->
<script src="../uibuilder/vendor/vue/dist/vue.min.js">/* prod version with component compiler */</script>
<!-- <script src="../uibuilder/vendor/vue/dist/vue.js">/* dev version with component compiler */</script> -->
<!-- <script src="../uibuilder/vendor/vue/dist/vue.runtime.min.js">/* prod version without component compiler */</script> -->
<script src="../uibuilder/vendor/bootstrap-vue/dist/bootstrap-vue.min.js">/* remove 'min.' to use dev version */</script> <!-- -->
<script src="./uibuilderfe.min.js">/* REQUIRED: remove 'min.' to use dev version */</script>
<script src="./index.js">/* OPTIONAL: Put your custom code here */</script>
<!-- #endregion -->
</body></html>
index.css:
/* Load the defaults from `<userDir>/node_modules/node-red-contrib-uibuilder/front-end/src/uib-styles.css` */
@import url("./uib-styles.css");
/* Cloak elements on initial load to hide the possible display of {{ ... }}
* Add to the app tag or to specific tags
* To display "loading...", change to the following:
* [v-cloak] > * { display:none }
* [v-cloak]::before { content: "loadingā¦" }
*/
[v-cloak] { display: none; }
body {
padding: 0;
margin: 0;
//overflow: hidden; /* Don't display any scroll bars */
background: url("images/EpicenterHotelCasino.png");
background-size: cover;
background-repeat: no-repeat;
}
#app {
height: 1080px;
width: 100%;
text-align: center;
margin: auto;
font-family: 'Staatliches', cursive;
color: #AAA;
}
.timerText {
position: fixed;
top:375px;
left:50%;
margin-right: -50%;
transform: translate(-50%, -50%);
font-size: 200px;
z-index: 12;
color: #7E7;
}
.clueText {
position: fixed;
text-align: center;
top:650px;
left:50%;
margin-right: -50%;
transform: translate(-50%, -50%);
font-size: 120px;
z-index: 15;
color: #C2F;
}
.exitCode {
position: fixed;
text-align: center;
top: 875px;
left:50%;
margin-right: -50%;
transform: translate(-50%, -50%);
font-size: 120px;
z-index: 14;
color: rgb(95, 34, 238);
}
.messageTest {
position: fixed;
text-align: left;
top:1040px;
left:5px;
font-size: 25px;
z-index: 13;
color:#FFF;
}
index.js
/* jshint browser: true, esversion: 5, asi: true */
/*globals Vue, uibuilder */
// @ts-nocheck
/*
Copyright (c) 2021-2022 Julian Knight (Totally Information)
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
'use strict'
/** @see https://totallyinformation.github.io/node-red-contrib-uibuilder/#/front-end-library */
// eslint-disable-next-line no-unused-vars
const app = new Vue({
el: '#app',
data() { return {
startMsg : 'Vue has started, waiting for messages',
feVersion : '',
counterBtn : 0,
inputText : null,
inputChkBox : false,
socketConnectedState : false,
serverTimeOffset : '[unknown]',
imgProps : { width: 75, height: 75 },
msgRecvd : '[Nothing]',
msgsReceived: 0,
msgCtrl : '[Nothing]',
msgsControl : 0,
msgSent : '[Nothing]',
msgsSent : 0,
msgCtrlSent : '[Nothing]',
msgsCtrlSent: 0,
isLoggedOn : false,
userId : null,
userPw : null,
inputId : '',
}}, // --- End of data --- //
computed: {
hLastRcvd: function() {
var msgRecvd = this.msgRecvd
if (typeof msgRecvd === 'string') return 'Last Message Received = ' + msgRecvd
return 'Last Message Received = ' + this.syntaxHighlight(msgRecvd)
},
hLastSent: function() {
var msgSent = this.msgSent
if (typeof msgSent === 'string') return 'Last Message Sent = ' + msgSent
return 'Last Message Sent = ' + this.syntaxHighlight(msgSent)
},
hLastCtrlRcvd: function() {
var msgCtrl = this.msgCtrl
if (typeof msgCtrl === 'string') return 'Last Control Message Received = ' + msgCtrl
return 'Last Control Message Received = ' + this.syntaxHighlight(msgCtrl)
},
hLastCtrlSent: function() {
var msgCtrlSent = this.msgCtrlSent
if (typeof msgCtrlSent === 'string') return 'Last Control Message Sent = ' + msgCtrlSent
return 'Last Control Message Sent = ' + this.syntaxHighlight(msgCtrlSent)
},
}, // --- End of computed --- //
methods: {
// Called from the increment button - sends a msg to Node-RED
increment: function(event) {
console.log('Button Pressed. Event Data: ', event)
// Increment the count by one
this.counterBtn += 1
var topic = this.msgRecvd.topic || 'uibuilder/vue'
uibuilder.send( {
'topic': topic,
'payload': {
'type': 'counterBtn',
'btnCount': this.counterBtn,
'message': this.inputText,
'inputChkBox': this.inputChkBox
}
} )
}, // --- End of increment --- //
// REALLY Simple method to return DOM events back to Node-RED. See the 2nd b-button on the default html
doEvent: uibuilder.eventSend,
// return formatted HTML version of JSON object
syntaxHighlight: function(json) {
json = JSON.stringify(json, undefined, 4)
json = json.replace(/&/g, '&').replace(/</g, '<').replace(/>/g, '>')
json = json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
var cls = 'number'
if ((/^"/).test(match)) {
if ((/:$/).test(match)) {
cls = 'key'
} else {
cls = 'string'
}
} else if ((/true|false/).test(match)) {
cls = 'boolean'
} else if ((/null/).test(match)) {
cls = 'null'
}
return '<span class="' + cls + '">' + match + '</span>'
})
return json
}, // --- End of syntaxHighlight --- //
}, // --- End of methods --- //
// Available hooks: beforeCreate,created,beforeMount,mounted,beforeUpdate,updated,beforeDestroy,destroyed, activated,deactivated, errorCaptured
/** Called after the Vue app has been created. A good place to put startup code */
created: function() {
// Example of retrieving data from uibuilder
this.feVersion = uibuilder.get('version')
/** **REQUIRED** Start uibuilder comms with Node-RED @since v2.0.0-dev3
* Pass the namespace and ioPath variables if hosting page is not in the instance root folder
* e.g. If you get continual `uibuilderfe:ioSetup: SOCKET CONNECT ERROR` error messages.
* e.g. uibuilder.start('/uib', '/uibuilder/vendor/socket.io') // change to use your paths/names
* @param {Object=|string=} namespace Optional. Object containing ref to vueApp, Object containing settings, or String IO Namespace override. changes self.ioNamespace from the default.
* @param {string=} ioPath Optional. changes self.ioPath from the default
* @param {Object=} vueApp Optional. Reference to the VueJS instance. Used for Vue extensions.
*/
uibuilder.start(this) // Single param passing vue app to allow Vue extensions to be used.
//console.log(this)
}, // --- End of created hook --- //
/** Called once all Vue component instances have been loaded and the virtual DOM built */
mounted: function(){
//console.debug('[indexjs:Vue.mounted] app mounted - setting up uibuilder watchers')
var app = this // Reference to `this` in case we need it for more complex functions
// If msg changes - msg is updated when a standard msg is received from Node-RED over Socket.IO
uibuilder.onChange('msg', function(msg){
//console.info('[indexjs:uibuilder.onChange] msg received from Node-RED server:', msg)
app.msgRecvd = msg
app.msgsReceived = uibuilder.get('msgsReceived')
})
//#region ---- Debug info, can be removed for live use ---- //
/** You can use the following to help trace how messages flow back and forth.
* You can then amend this processing to suite your requirements.
*/
// If we receive a control message from Node-RED, we can get the new data here - we pass it to a Vue variable
uibuilder.onChange('ctrlMsg', function(msg){
//console.info('[indexjs:uibuilder.onChange:ctrlMsg] CONTROL msg received from Node-RED server:', msg)
app.msgCtrl = msg
app.msgsControl = uibuilder.get('msgsCtrl')
})
/** You probably only need these to help you understand the order of processing
* If a message is sent back to Node-RED, we can grab a copy here if we want to
*/
uibuilder.onChange('sentMsg', function(msg){
//console.info('[indexjs:uibuilder.onChange:sentMsg] msg sent to Node-RED server:', msg)
app.msgSent = msg
app.msgsSent = uibuilder.get('msgsSent')
})
/** If we send a control message to Node-RED, we can get a copy of it here */
uibuilder.onChange('sentCtrlMsg', function(msg){
//console.info('[indexjs:uibuilder.onChange:sentCtrlMsg] Control message sent to Node-RED server:', msg)
app.msgCtrlSent = msg
app.msgsCtrlSent = uibuilder.get('msgsSentCtrl')
})
/** If Socket.IO connects/disconnects, we get true/false here */
uibuilder.onChange('ioConnected', function(connected){
//console.info('[indexjs:uibuilder.onChange:ioConnected] Socket.IO Connection Status Changed to:', connected)
app.socketConnectedState = connected
})
/** If Server Time Offset changes */
uibuilder.onChange('serverTimeOffset', function(serverTimeOffset){
//console.info('[indexjs:uibuilder.onChange:serverTimeOffset] Offset of time between the browser and the server has changed to:', serverTimeOffset)
app.serverTimeOffset = serverTimeOffset
})
/** If user is logged on/off */
uibuilder.onChange('isAuthorised', function(isAuthorised){
//console.info('[indexjs:uibuilder.onChange:isAuthorised] isAuthorised changed. User logged on?:', isAuthorised)
//console.log('authData: ', uibuilder.get('authData'))
//console.log('authTokenExpiry: ', uibuilder.get('authTokenExpiry'))
app.isLoggedOn = isAuthorised
})
//#endregion ---- Debug info, can be removed for live use ---- //
}, // --- End of mounted hook --- //
}) // --- End of app1 --- //
// EOF
