Checkout Library

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11.80.02 days ago5 years agoMinified + gzip package size for @brandingbrand/fscheckout in KB



Problems to solve

  • Generally, checkout flows have similar features like state management and step trackers so we
shouldn't reinvent the wheel.
  • Checkout is complicated so we don't want 10 projects with 10 different code structures to manage.
  • Despite some similarities, many checkouts have unique features so we don't want an inflexible
library that makes it hard to customize.


  • Create a way to standardize the checkout structure.
  • Make common functionalities reusable.
  • Make it flexible for customization.


  • Project checkout has to built with FSCheckout component.
  • Leverage TypeScript to force a standardized code structure for:
- how steps are structured - how checkout state and data are managed - how api request is made - how step progress is managed
  • Each step must be separated into its own component and passed to FSCheckout as props with their
name and status.
  • Step Component must be StatelessComponent, and all the states have to go into the main Checkout
component as a single state.
  • checkoutState and checkoutActions are required to pass to FSCheckout for defining checkout
state and actions
  • Step progress is managed internally in FSCheckout, and reference function is provided to perform
arbitrary step jump.
  • step changing hook is provided to do stuff like analtyics
  • A global loading view is provided to mask user interaction. It can be overridden with a custom render.
  • Built in a step tracker. It's customizable with style props and can be overridden with a custom render.