Creating payment app using nodejs express

Shopify Apps
,

Topic summary

  • Request for guidance on building a Shopify payment app that appears as a payment gateway option during checkout.

  • Poster is new to Shopify development. They have already created a public app but don’t know the next steps to create a payment app.

  • The ask is for help on how to proceed—from setup to any required steps or configurations for a payment gateway.

  • No answers or actionable steps provided yet. Discussion is open and unresolved.

Summarized with AI on January 10. AI used: gpt-5.
1

Hi,
Im new to shopify. Im trying to create a payment app(that has to be shown to customers as a payment gateway option during checkout) . I created public app but dont know how to proceed for payment app. Can someone help me out please.