Build — Buyers

A buyer commits to offers, redeems vouchers, and (rarely) disputes. There's no explicit "create a buyer" step — your first commitToOffer registers you.

For each task, expand the CodeGroup to see the equivalent code in SDK and MCP.

Tasks

1. Discover offers — query offers from the subgraph.
2. Commit to an offer — the core action.
3. Atomic commit-and-redeem — single-tx purchase + redemption.
4. Buyer-initiated offers — propose to a seller.
5. Sequential commit — buy a voucher on a secondary market with full protocol protection.
6. Redeem a voucher — claim the goods.
7. Cancel / revoke — back out of a commit.
8. Raise a dispute — when things go wrong.

Non-code path

9. Buy via the Boson dApp — UI walkthrough.

Prerequisites

• A wallet with the offer's exchangeToken (or native gas) on the chain you're buying on. See Wallets & key management.
• Approval for ERC-20 offers (or use a permit). See Troubleshooting → Approve · Permit · Permit2.