Inserting Stripe codes into shopify store for check out

MUST HAVE EXPERIENCE WITH SHOPIFY I had recently spoken to stripe about capturing my customers payment data so i can charge my customers for a later date. I have a rental business, and i need to be able to capture and save customer data within stripe to charge them, when damages/late returns occur. We use to use another API, to capture customer information to use it in stripe, but upon speaking to stripe, they said we can do it directly in stripe. which means everytime we take payment, the customer information needs to appear in the "customer" tab on our stripe dashboard, instead of just in the "payments" tab. Our website is through shopify, and by speaking to stripe, theyve given me two links of codes to put into the check out codes. [login to view URL] [login to view URL] They told me this is quite a simple code to just drop into the checkout codes, I was wondering if you could help with this. Should be a pretty quick job, and you are the recommended person from Stripe. Please let me know if you dont understand the request. Thank you!