Nexus Elements - Unified Balance

Install

• Install widget:
  • npx shadcn@latest add @nexus-elements/unified-balance
• Ensure NexusProvider is installed and initialized before rendering.

Required setup before rendering

• Ensure useNexus().nexusSDK is initialized.
• Ensure provider has fetched bridge and swap balances.

Initialize SDK (required once per app)

• On wallet connect, resolve an EIP-1193 provider and call useNexus().handleInit(provider).
• Wait for useNexus().nexusSDK before expecting balance data.
• Re-run init after reconnect if wallet session resets.

Render widget

"use client";

import UnifiedBalance from "@/components/unified-balance/unified-balance";

export function BalancePanel() {
  return <UnifiedBalance className="max-w-lg" />;
}

Live prop contract

• className?: class passthrough for container styling.

SDK flow details (under the hood)

• Data source:
  • bridgableBalance from sdk.getBalancesForBridge()
  • swapBalance from sdk.getBalancesForSwap()
• Formatting:
  • nexusSDK.utils.formatTokenBalance(...)
• Presentation behavior:
  • if swap balance is unavailable, render bridge breakdown only
  • if swap balance exists, render tabs for bridge vs swap balances

E2E verification

• Confirm non-zero tokens show chain counts and per-chain rows.
• Confirm total fiat reflects aggregate balanceInFiat values.
• Confirm tab switch works when both bridge and swap balances exist.
• Confirm styles from className are applied in both render branches.

Common failure cases

• Empty panel:
  • SDK not initialized or wallet has no supported assets.
• Incorrect formatting:
  • ensure token decimals/symbol values exist in returned balance data.