~/openarch/work/marketspace-// case study

Marketspace

A multi-vendor marketplace. One buyer-facing storefront over a shared vendor backend, with split payments per vendor and automated weekly payouts - off scattered Instagram-shop selling.

Karigar Collective·marketplace · artisan retail·2026·in production

openarch.in/work/marketspace

//the brief

What we built.

Karigar Collective's artisans sold through individual Instagram DMs. We built one storefront and a shared backend: buyers browse every maker in one place, multi-vendor carts split into per-vendor sub-orders at checkout, and payouts run automatically each week.

// Every maker, one storefront.

domainmulti-vendor commerce

shapebuyer app + vendor web

statusin production

vendors40+ onboarded

stack

react native · exporeactnode · expresspostgresrazorpay route

//what we shipped

Buyer storefront

Browse by category and vendor, search, and a multi-vendor cart that splits into per-vendor sub-orders at checkout.

Order tracking

Placed to delivered, tracked per sub-order, with review submission opening once an item is delivered.

Vendor dashboard

Catalog management, stock levels and images, an incoming-orders queue, and mark-as-packed / shipped actions.

Payout history

Weekly payout history and an upcoming-payout estimate - brass reserved for brand and CTA moments, never stock state.

Admin console

A vendor approval queue, dispute and refund handling, and commission-rate management per vendor or category.

Split settlement

One Razorpay Route split per vendor sub-order, so each maker is paid directly from a single buyer checkout.

//data model

schema.sql5 tables

table vendors

name, craft_category, city, payout_account, approved

table products

vendor_id, name, category, price, stock_qty, image_url

table orders

buyer_id, status, total, placed_at

table order_items

order_id, product_id, vendor_id, qty, unit_price

table payouts

vendor_id, period, gross_sales, commission, net_payout

// order status machine

01placed
02confirmed
03packed
04shipped
05delivered / returned

//business logic

split-order.tsCheckout split

function splitOrderByVendor(cartItems) {
  // one Razorpay Route split per vendor sub-order
  return groupBy(cartItems, 'vendor_id')
}

payout.tsPayout calc

function calculatePayout(grossSales, commissionRate = 0.12) {
  const commission = grossSales * commissionRate
  return { commission, net: grossSales - commission }
}
// runs weekly for orders marked DELIVERED the prior week

//on the roadmap

Honest edges.

→Combine shipping across vendors in the same city within one cart
→Retry logic for the payout batch if a Razorpay Route call fails mid-run
→Automated profanity / spam filtering ahead of manual review moderation

//result

40+

artisan vendors in Q1

weekly

automated payouts

storefront, not DMs

Karigar Collective onboarded over forty artisan vendors in the first quarter, moving them off individual Instagram DMs onto one storefront with automated weekly payouts.

all_work // next buildPipelineOne pipeline, not five spreadsheets.