Injective Trading Frontend UX

Use this skill when building or reviewing a browser UI that lets users trade on Injective. Pair it with protocol-specific skills such as injective-frontend-wallet, injective-rfq-integrations, injective-trading-autosign, and injective-usdc-integration when the task touches those areas.

Core Rule

A trading UI should keep the protocol precise in code and logs, but keep the user flow simple, conservative, and impossible to double-submit accidentally.

Pre-Ship Checklist

Trade Submission

• Use one in-flight trade lock per active wallet/session for all transaction-producing actions: open, close, cash out, cash out all, cancel, and emergency exits.
• Disable every trade button while the lock is held. Release only after the tx is confirmed or the flow fails.
• Do not rely on a per-card spinner or per-position loading state to prevent duplicate broadcasts. Two buttons can still race the same account sequence.
• Treat account sequence mismatch as a likely frontend concurrency or stale-sequence bug before changing chain parameters.
• Keep bulk close/cash-out flows sequential unless the signer and sequence manager are proven safe for parallel transactions.

Wallet, AuthZ, And Autosign Readiness

• Distinguish wallet connection from trading readiness. Connected wallet does not imply RFQ/AuthZ/autosign is ready.
• Revalidate local session, grantee, or autosign state against the currently connected inj1 address after connect, account swap, reload, and revoke.
• Key local grantee/session storage by granter address. Never let a session from wallet A appear active for wallet B.
• For revoke flows, broadcast and confirm the on-chain MsgRevoke before clearing local session state. If revoke fails or the user rejects signing, keep the session visible so they can retry.
• Show actionable states such as Authorize wallet, Order pending, or Order failed, please try again. Avoid leaking raw message type or signer internals in the primary UI.

RFQ And Order Errors

• Do not expose RFQ IDs, taker addresses, CheckTx logs, account sequence numbers, or raw tx hashes as the main error copy.
• Normalize RFQ no-quote timeouts like no quotes received within wait time [rfqID: ... taker: ...] to a generic failure message. Log the details for developers.
• Prequote or warmup requests are useful for speed, but final click-time submission still needs quote freshness, slippage, maker allowlist, and prepared-input validation.
• A matched RFQ is not the same as a confirmed trade. Keep controls locked until settlement is confirmed or failed.

USDC And Amount Inputs

• Default cash/trade amount fields blank. Do not prefill $100 or any fixed amount; many wallets have less.
• Let explicit controls such as Half and All-In fill from the current visible balance.
• Truncate displayed USDC balances instead of rounding up, so the UI never implies spendable funds that may not exist.
• After a bridge/CCTP/funding tx, a short-lived local balance floor can make the UI less confusing while indexer balances catch up. Clear it once the authoritative balance catches up or the floor expires.
• Keep native USDC denoms explicit in code and logs. Injective EVM USDC is 0xa00C59fF5a080D2b954d0c75e46E22a0c371235a; Cosmos bank denom is erc20:0xa00C59fF5a080D2b954d0c75e46E22a0c371235a.

Market Search And Layout

• Prefer search that scrolls to and highlights matching markets while keeping the full market grid rendered.
• Avoid filtering to a single result if the grid layout stretches one card across the page.
• Use stable card/grid dimensions so search, loading labels, error stamps, and button states do not reshape the trading form.
• If search has no match, keep the grid stable and show a compact no-match state near the search control or below the grid.

Copy Boundaries

• User copy should describe what the user can do next, not how the protocol failed internally.
• Developer logs can include RFQ ID, taker address, tx hash, rawLog, account number/sequence, and prepared quote diagnostics.
• Primary UI copy should stay short: Enter cash, Need cash, Order pending, Order failed, please try again., Authorize wallet.

Good Defaults

• Blank amount input with Enter cash CTA disabled.
• Half / All-In buttons disabled until a positive USDC balance is known.
• Global trade lock shared by open and close buttons.
• Search shortcut / focuses search; results scroll and highlight rather than filtering away context.
• Toasts and per-card errors use sanitized messages; raw errors go to console or telemetry.

When To Use Other Skills

• Wallet signing, Injective pubkey types, sequence, and browser wallet errors: use injective-frontend-wallet.
• RFQ taker implementation details: use injective-rfq-integrations.
• AuthZ/autosign grants and session trading: use injective-trading-autosign.
• CCTP/native USDC bridge flows: use injective-usdc-integration.