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Connect a custom storefront to commerce operations

Headless Commerce Development

Build a tailored shopping interface on top of your commerce backend. BrownBag connects frontend experiences, product data and checkout with a maintainable architecture and release process.

A developer using several screens to work on application code

Connect a custom storefront to commerce operations

How we help

A custom frontend introduces decisions that an all-in-one theme normally handles: where content lives, how prices and stock refresh, how carts persist and where checkout takes over. These boundaries need to be designed as part of the buying journey.

We map the storefront and commerce responsibilities before implementation. The result brings together responsive pages, API-driven product experiences and clear operational ownership, with performance and maintenance considered alongside the visual design.

Discuss this service →

The work, step by step

How the work is handled

  1. Map the architecture and journey

    Define the commerce platform, content source and frontend responsibilities. Trace product discovery, variant selection, cart and checkout, then identify authentication, pricing, inventory and localisation requirements across those steps.

  2. Implement the storefront connections

    Build the agreed frontend pages and commerce API integrations. Connect content, product data and cart actions while handling loading states, unavailable variants and failed requests in a way customers can understand.

  3. Validate and prepare operations

    Test buying journeys, rendering, search visibility and representative device performance. Establish preview, release and rollback procedures, with monitoring responsibilities and documentation for the people maintaining frontend and backend services.

Clear handover

What you receive

  • Architecture and commerce API responsibility map
  • Responsive custom storefront and content connections
  • Cart, checkout and failure-scenario validation
  • Release, monitoring and maintenance handover

Start the conversation

Prepare your brief

These details help us scope the work:

  • Commerce backend and available API access
  • Design goals, content sources and key journeys
  • Integration requirements and maintenance ownership
Build your service brief →

Your questions, answered

Do we need to replace the existing backend?

Not necessarily. A suitable commerce backend can continue to manage products and orders while a custom frontend handles the shopping experience. We assess its APIs and checkout options first.

Who maintains the separate frontend?

The delivery plan identifies release ownership, dependency updates and monitoring responsibilities. Your team can take over with documentation and training, or agree ongoing support around the implemented architecture.

Talk to BrownBag

Let’s find the right support
for your business.

Tell us what you sell, where you operate and what you need help with. We’ll work through the next steps with you.