NFT Marketplace Front-End
The full trading interface for an EVM marketplace — connect, mint, list, buy — with every failure state designed first so the product feels trustworthy.
Overview
Web3 interfaces live or die on the unhappy path, and this one had shipped happy-path first: a spinner and a hope. Users dropped off at wallet connect and again at the first transaction.
I rebuilt the connection flow as a proper state machine — connecting, wrong network with a switch button, account changed mid-session, rejected — and gave every transaction a full lifecycle UI with simulation before signing, an explorer link while pending, and plain-language copy on revert.
Reads moved off direct chain calls onto an indexer so listings and history load from a fast database, with RPC reserved for the write path and confirmations.
Outcomes
- Wallet-connect drop-off cut by roughly a third after the state-machine rewrite
- Transaction simulation catches reverts before the user pays gas
- Approval and signing copy rewritten for people who don't think in nonces
- Listings and activity feed load from a subgraph, not live chain reads
Tell me about your product
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