How to use external object in react? - javascript

A third party sent me this script. Basically,
include a script
call the object
onAuthorize will feedback data, then do something with data
Is it a way to integrate it with react? I think I need the data from onAuthorize to update my react state
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<meta name="theme-color" content="#000000">
<title>Payment Gateway Test Page</title>
<script src="https://service.com/widget.js">
</script>
<style type="text/css">
iframe{border: 0;height: 50px;}
</style>
</head>
<body>
<div>
* Demo for widget
</div>
<br/>
<script>
// widget
mywidget.Button.render({
Client: {
id: "1234",
name: "testme"
},
payment: function (actions) {
var amountValue = parseFloat(document.getElementById("inp-amount").innerText);
return actions.createQuote(amountValue)
},
onAuthorize: function (data) {
// err
if (data.errorCode) {
this.onError(data);
return;
}
// money we need to pay
var amountValue = parseFloat(document.getElementById("inp-amount").innerText);
// we have such points, converted to money
var pointsDollars = parseFloat(data.pointsBurned * 0.005, 10);
// points to convert
document.getElementById('qp').innerText = data.pointsBurned;
// origPay - new_money = pay_now
document.getElementById('bal').innerText = '$' + (amountValue - pointsDollars);
},
onError: function (data) {
console.log(data);
},
onClicked: function (data) {
// on click
console.log(data);
}
}, "#container"); // container
</script>
<div id="container"></div>
<br/>
<div id="amount">
Checkout: $<span id="inp-amount">1543</span> <br>
Points to redeem: <span id="qp"></span> <br>
<hr>
Balance to pay: <span id="bal"></span> <br>
</div>
</body>
</html>

You could create an event and listen for that event. In onAuthorize you can trigger the event and pass the data.
Add an event in your page (not necessarily in React)
// Create the event
var event = new CustomEvent("authroize-me", { "detail": "some event info" });
React component
constructor() {
super();
this.handleAuthroizeMe = this.handleAuthroizeMe.bind(this);
}
handleAuthroizeMe(data) {
console.log(data);
}
componentDidMount() {
document.addEventListener('authroize-me', this.handleAuthroizeMe);
}
componentWillUnmount() {
document.removeEventListener("authroize-me", this.handleAuthroizeMe);
}
In onAuthorize
onAuthorize: function (data) {
// Dispatch event
document.dispatchEvent(event, data);
}
Another quick and dirty fix.
Expose a function from react component outside the react scope.
window.setAuthorizeState = (data)=> {
this.setState({authorizeState: data});
}
Call setAuthorizeState from onAuthorize

The code can be embedded in a component which renders the container. And in componentDidMount, the script can be placed.
class Widget extends Component {
componentDidMount() {
// script here
}
render() {
return (
<div id="container" />
);
}
}

Related

Get elements from JSON array to display as a text

So i am trying to get a first_name from JSON object which has array of elements by iterating through it, for example if i type 'Ron' it will display as a text but for some reason I can't get display it as a text unless i send in a respond this `
playerName: nbaPlayer[0]
But it only displays one element as a text since others are not in a response
reponse in a server enter image description here
Here is a code for fetch where i use search bar from handlebars to search for a first_name
const nbaForm = document.querySelector('form')
const search = document.querySelector('input')
const messageOne = document.querySelector('#player-1')
nbaForm.addEventListener('submit', (event) => {
event.preventDefault()
const playerSearch = search.value
messageOne.textContent = 'Loading...'
fetch('http://localhost:4000/nba').then((response) => {
response.json().then(nbaData => {
if (nbaData.playerName === playerSearch) {
messageOne.textContent = nbaData.playerName
} else {
messageOne.textContent = 'not found'
}
})
})
})
request method
app.get('/nba', (req,res) => {
networkManager.nbaPlayerData((data)=>{
/
var nbaPlayer = []
for(var i=0; i<data.data.length; i++){
nbaPlayer.push(data.data[i].first_name)
}
console.log(nbaPlayer)
res.send({
playerName: nbaPlayer
})
})
})
handlebars file
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>NBA</title>
<link rel = "stylesheet" href="/css/style.css">
</head>
<body>
<div class="main-content">
<h1>NBA SERVER</h1>
<p>Use this site to get NBA player</p>
<form action="">
<input placeholder="Type a players name">
<button>Search</button>
</form>
<p id="player-1"></p>
<h1>{{playerName}}</h1>
</div>
<script src ="/js/fetch-app.js"></script>
</body>
</html>
try this.
fetch('http://localhost:4000/nba').then((response) => {
response.json().then(nbaData => {
var index = nbaData.playerName.indexOf(playerSearch)
if (index !== -1) {
messageOne.textContent = nbaData.playerName[index]
} else {
messageOne.textContent = 'not found'
}
})
})
You are getting an array from
res.send({
playerName: nbaPlayer // nbaPlayer is array
})
but in your fetch, you want to get data as from simple object

Stripe Checkout is not defined reference error

I am trying to put Stripe into my web page to accept payments. But whenever I load the page I get an error saying that stripeCheckout is not defined. I know this has to do with the library imported in one of my script tags, but I am not sure why it is showing up as undefined. The library imported I thought was correct. Here is my code:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<!-- CSS Link -->
<link rel="stylesheet" href="styles.css">
<title>Store</title>
<script src="https://checkout.stripe.com/checkout.js" defer></script>
<script>
var stripePublicKey = '<%= stripePublicKey %>'
</script>
<script src="store.js" defer></script>
</head>
and this in my store.js file
const stripeHandler = stripeCheckout.configure({
key: stripePublicKey,
locale: 'auto',
token: function(token){
}
})
// Removes cart items after they are purchased
const purchaseItems = () => {
// let cartItems = document.getElementsByClassName('cart-items')[0]
// while(cartItems.hasChildNodes()){
// cartItems.removeChild(cartItems.firstChild)
// }
// updateCartTotal()
let priceElement = document.getElementsByClassName('cart-total-price')[0]
let price = parseFloat(priceElement.innerText.replace('$', '')) * 100
stripeHandler.open({
amount: price
})
}
I believe that that particular Stripe checkout API (and script) is now deprecated.
Here's a link to the docs for the new APIs: https://stripe.com/docs/payments/checkout/migration#client-products
Example from docs:
// client.html
<script src="https://js.stripe.com/v3"></script>
<button id="checkout-button">Pay</button>
// client.js
var stripe = Stripe('YOUR_API_KEY');
var checkoutButton = document.querySelector('#checkout-button');
checkoutButton.addEventListener('click', function () {
stripe.redirectToCheckout({
items: [{
// Define the product and SKU in the Dashboard first, and use the SKU
// ID in your client-side code.
sku: 'sku_123',
quantity: 1
}],
successUrl: 'https://www.example.com/success',
cancelUrl: 'https://www.example.com/cancel'
});
});

Watched prop callback of a component inside a v-if statement is not called

I have a component, "cmptest", which have a watched property, "needWatch".
This component is inside a v-if statement, but the watched function is not called when it is rendered.
As shown in the example, the "needWatch" prop is setted with "value" data property from "cmpcheck", what makes me expect that the watch callback should be fired here.
If I remove the v-if statement, the function is called as expected when the checkbox is clicked.
<div v-if="value===true"><!--remove-->
<cmptest :need-watch="value"></cmptest>
</div><!--remove-->
Is this by design? What am I doing wrong here?
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Vue Example</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script src="vue.js"></script>
<script type="text/x-template" id="cmptesttemplate">
<div>
<p>needWatch: {{needWatch}}</p>
<p>updateByWatch: {{updateByWatch}}</p>
</div>
</script>
<script type="text/x-template" id="cmpchecktemplate">
<div>
<input id="checkBox" type="checkbox" value="1" v-on:click="setCheckboxValue()">
<div v-if="value===true">
<cmptest :need-watch="value"></cmptest>
</div>
</div>
</script>
</head>
<body>
<div id="container">
<cmpcheck></cmpcheck>
</div>
<script>
var cmptest = Vue.component('cmptest', {
template: '#cmptesttemplate',
data: function() {
return {
updateByWatch: ''
}
},
props: ['needWatch'],
watch: {
needWatch: function(v) {
console.log('Watched!');
this.updateByWatch = Math.random();
}
}
});
var cmpcheck = Vue.component('cmpcheck', {
template: '#cmpchecktemplate',
data: function() {
return {
value: 'Unitialized'
};
},
methods: {
setCheckboxValue: function() {
console.log('SELECTED');
var el = $(this.$el).children('#checkBox').is(':checked');
this.value = el;
}
}
});
new Vue({
el: '#container',
components: {
'cmptest': cmptest,
'cmpcheck': cmpcheck
}
});
</script>
</body>
</html>
Well, as long as value is Unitialized (thus, not true), <cmptest :need-watch="value"></cmptest> will never be rendered, so the watcher does not actually exist. Once setCheckboxValue is called, if value is true, the cmptest will be rendered and then the watcher initialized. But value is already true, so it's not triggered.
However, you can use:
watch: {
needWatch: {
immediate: true,
handler(nv, ov) { ... }
}
}
so that your watcher callback runs when needWatch is initiated.

How to create an array of previously retrieved posts from an AJAX request

Here is the problem I am working on.
Attached is an index.html.
Implement the next and previous buttons to navigate to next/previous posts from the API provider (https://jsonplaceholder.typicode.com).
Create a new tag that displays the current post ID.
Bonus points: Create a new array to store all of the previously retrieved posts, and display them in a list.
The API is from jsonplaceholder.typicode.com, so you don't need to implement that. A jsfiddle would be immensely appreciated.
<!DOCTYPE html>
<html>
<head>
<title>Vue Test</title>
<link href='https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css' rel='stylesheet' type='text/css' />
<div id="app">
<h1>{{ message }}</h1>
<div>
<span>{{post.title}}</span>
</div>
<button v-on:click="previousPost">Previous Post</button> <!-- // new vue directive - v-on:click, also -->
<button v-on:click="nextPost">Next Post</button>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/vue/2.1.10/vue.js"></script>
<script
src="https://code.jquery.com/jquery-3.1.1.min.js"
integrity="sha256-hVVnYaiADRTO2PzUGmuLJr8BLUSjGIZsDYGmIJLv2b8="
***emphasized text***crossorigin="anonymous"></script>
<script>
var app = new Vue({
el: '#app',
data: {
message: 'Welcome to Vue!',
post: {},
page: 1
},
mounted: function() {
this.getPost()
},
methods: {
nextPost: function() {
this.page = this.page + 1
this.getPost()
// Implement me
},
previousPost: function() {
// Implement me
this.page = this.page - 1
this.getPost()
},
getPost: function() {
var root = 'https://jsonplaceholder.typicode.com';
$.ajax({
url: root + '/posts/' + this.page,
method: 'GET'
})
.then((data) => {
console.log(data);
this.post = data;
});
}
}
})
</script>
<style>
/* Add any additional styles here */
body {
padding: 20px;
}
div {
margin: 12px 0;
}
</style>
I would also like to know what is meant by the post id over there. I have completed one task which shows the next and previous posts, but the other two tasks I am a little confused.

Routing and button click not working in Backbone + handlebars

index.html
<html>
<head>
<meta charset="utf-8" />
<meta name="format-detection" content="telephone=no" />
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link href="js/lib/bootstrap/css/bootstrap.min.css" rel="stylesheet" media="screen">
<link href="js/lib/bootstrap/css/bootstrap-responsive.css" rel="stylesheet">
<link href="js/lib/ratchet/ratchet-theme-ios.css" rel="stylesheet">
<link href="js/lib/ratchet/ratchet.css" rel="stylesheet">
<link rel="stylesheet" type="text/css" href="css/index.css" />
<title>totter</title>
</head>
<body>
<div class="content">
</div>
<script src="js/lib/jquery-1.9.1.min.js"></script>
<script src="js/lib/underscore-min.js"></script>
<script src="js/lib/backbone-min.js"></script>
<script src="js/lib/bootstrap/js/bootstrap.js"></script>
<script src="js/lib/handlebars/handlebars-v1.3.0.js"></script>
<script src="js/lib/ratchet/ratchet.js"></script>
<script src="js/common/helper.js"></script>
<script src="js/app.js"></script>
<script src="js/views/home.js"></script>
<script src="js/views/signin.js"></script>
<script src="js/models/home.js"></script>
<script src="js/models/signin.js"></script>
</body>
</html>
app.js
var app = {
views: {},
models: {},
loadTemplates: function(views, callback) {
var deferreds = [];
$.each(views, function(index, view) {
if (app[view]) {
deferreds.push($.get('template/' + view + '.hbs', function(data) {
app[view].prototype.template = _.template(data);
}, 'html'));
} else {
alert(view + " not found");
}
});
$.when.apply(null, deferreds).done(callback);
}
};
app.Router = Backbone.Router.extend({
routes: {
"": "home",
"signIn":"SignIn"
},
home: function () {
// Since the home view never changes, we instantiate it and render it only once
if (!app.home) {
app.home = new app.HomeView();
app.home.render();
} else {
// delegate events when the view is recycled
app.home.delegateEvents();
}
},
SignIn:function(){
if (!app.signin) {
app.signin = new app.SignInView();
app.signIn.render();
} else {
// delegate events when the view is recycled
app.signin.delegateEvents();
}
}
});
$(document).on("ready", function () {
app.loadTemplates(["HomeView"],
function () {
app.router = new app.Router();
Backbone.history.start();
});
});
home.js
app.HomeView = Backbone.View.extend({
//Calling the render method to render view from the template
initialize:function(){
this.render();
},
//Pass the handlebars template for complilation and
render: function () {
var path = './template/HomeView.hbs';
Helper.GET_TEMPLATE(path, function(template) {
//pass collection to template to set values
var html = template(app.homeCollection.toJSON());
//pass collection to template to set values
$('.content').html(html);
});
$('.signin').bind('click', function(e) {
app.Router.navigate("signIn", {trigger: true});
});
}
});
app.home = new app.HomeView();
sigin.js
app.SigInView = Backbone.View.extend({
//Calling the render method to render view from the template
initialize:function(){
this.render();
},
//Pass the handlebars template for complilation and
render: function () {
var path = './template/SignInView.hbs';
Helper.GET_TEMPLATE(path, function(template) {
//pass collection to template to set values
var html = template(app.signinCollection.toJSON());
//pass collection to template to set values
$('.content').html(html);
});
}
});
app.signin = new app.SigInView();
helper.js
var Helper = {};
Helper.GET_TEMPLATE = function(path,callback){
var source, template;
$.ajax({
url: path,
success: function(data) {
source = data;
//Compile the raw data we got from the file
template = Handlebars.compile(source);
//execute the callback if passed
if (callback){
callback(template);
}
}
});
}
homeModel.js
var HomeModel = Backbone.Model.extend();
var homeData = new HomeModel({
id: 1,
signUpTitle: 'Sign Up for TOT ',
signInTitle: 'Sign In',
slogan:'slogan slogan slogan slogan slogan slogan slogan slogan slogan slogan '
});
/**
* Defining a Collection to set model
*/
var HomeCollection = Backbone.Collection.extend({
model: HomeModel
});
/**
* Defining a array to hold the collection
*/
app.homeCollection = new HomeCollection([homeData]);
HomeView.hbs
<header class="bar bar-nav">
<h1 class="title">totter</h1>
</header>
<div class="logo">
<img src = "img/choice.png">
</div>
{{#each []}}
<div class="textcontent">
<label>{{this.slogan}}</label>
</div>
<div class="footer">
<button class="btn btn-primary btn-block signup" style="">{{this.signUpTitle}}</button>
</div>
<div class="footer">
<button class="btn btn-primary btn-block signin">{{this.signInTitle}}</button>
</div>
{{/each}}
In the above code I used to develop a simple app with 2 views. I want to show sign-in view on button click of sign-in.
How can I achive this? I am using "handlebars" and "backbone.js".
The events aren't firing because you're utilizing the View el property. Either give it a preexisting element or insert the el itself to the DOM.
see the answer on the following discussion for a more comprehensive explanation.

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