I'm trying to integrate bluesnap payment gateway into a react/ts project. I've included their hosted javascript into my public/index.html and have proceeded with the integration within a component, but on compiling I'm getting the error of

'bluesnap' is not defined no-undef

I've tried to supress the error with ts-ignore

// @ts-ignore
    bluesnap.hostedPaymentFieldsSubmitData((callback: any) => {

However it's still not liking that I'm calling bluesnap without defining it. The bluesnap is defined though within the public/index.html head

    <script type="text/javascript" src="https://sandbox.bluesnap.com/web-sdk/4/bluesnap.js"></script>

Any ideas?

Thanks