How to use external JavaScript objects in Vue.js methods
Question
I'm trying to get Stripe working with my Vue.js 2 application. For PCI-DSS reasons, Stripe requires that their Javascript is always loaded from js.stripe.com . I've followed the instructions in:
- How to add external JS scripts to VueJS Components
- How to include a CDN to VueJS CLI without NPM or Webpack?
but I get a 'Stripe' is not defined error when I try to use the library. These solutions seemed to be aimed at merely getting a <script> tag into the output HTML (eg for analytics), not actually consuming the functions and objects in that script.
Here's what my component Javascript looks like:
<script>
export default {
name: "PaymentPage",
mounted() {
let stripeScript = document.createElement('script');
stripeScript.setAttribute('src', 'https://js.stripe.com/v3/');
document.head.appendChild(stripeScript);
let s = Stripe('pk_test_Fooo');
console.log(s);
}
}
</script>
I also tried adding the script tag to my public/index.html file instead, but I get the same outcome. This would probably be my preferred route, since Stripe encourages developers to import their script on all pages on the site .
<!DOCTYPE html>
<html lang="en">
<head>
// ...
<script src="https://js.stripe.com/v3/"></script>
</head>
How can I pull a script from an external CDN and use it within my component's Javascript?
I'm aware of some libraries to integrate Vue.js with Stripe (eg matfish2/vue-stripe and jofftiquez/vue-stripe-checkout ), but the former doesn't import properly for me (I'm hitting issue #24 ) and the latter is built against the older Stripe API and the new version is still in beta.
4 answers
solution1
3 2019-09-08 09:11:21
You aren't giving the script time to load before checking if Stripe is there. What you need is something like this:
<script>
export default {
name: "PaymentPage",
mounted() {
let stripeScript = document.createElement('script');
stripeScript.setAttribute('src', 'https://js.stripe.com/v3/');
stripeScript.onload = () => {
let s = Stripe('pk_test_Fooo');
console.log(s);
};
document.head.appendChild(stripeScript);
}
}
</script>
solution2
3 2019-09-08 09:32:53
Thanks to yuriy636's comment , I realised that errors were only from the linter, which presumably can't statically figure out what I'm up to.
I opted to put the script into index.html , then ensured I squashed linter errors with:
// eslint-disable-next-line no-undef
let s = Stripe('pk_test_Fooo');
solution3
0 2021-03-15 09:45:39
In my case, I still had errors calling functions of the specific script. So it was required to specify the ¨window¨ scope. Also, if you need to access any Vue element inside the ¨onload¨function, you need a new variable for the ¨this¨ instance.
<script>
export default {
name: "PaymentPage",
mounted() {
let stripeScript = document.createElement('script');
// new variable for Vue elements.
let self = this;
stripeScript.onload = () => {
// call a script function using 'window' scope.
window.Stripe('pk_test_Fooo');
// call other Vue elements
self.otherVueMethod();
};
stripeScript.setAttribute('src', 'https://js.stripe.com/v3/');
document.head.appendChild(stripeScript);
}
}
I worked with this on Vue 2.6.
solution4
0 2022-01-06 15:19:07
Just install the npm package npm install @stripe/stripe-js and use it like a regular import
import { loadStripe } from "@stripe/stripe-js";
export default {
async mounted() {
// init stripe
const stripe = await loadStripe('your_stripe_key_here');
this.stripe = stripe; // store the stripe instance
// access the stripe instance in your methods or where you want to use them
},
}
It's working as of 6th Jan 2022.
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