Trade

This guide explains how to use the Trade page of W Swap. The interface is a familiar Uniswap V2-style experience adapted for W Chain (native token WCO) with the same core flow: connect a wallet, select tokens, approve if required, set slippage, and confirm the trade.

Overview

• Network: W Chain (EVM-compatible; native gas token WCO)

• Purpose: Trade between supported ERC‑20 tokens on W Chain

• Model: a constant-product AMM (x·y = k)

• Key actions: Token selection, allowance approval, slippage and deadline configuration, transaction confirmation

Prerequisites

• A supported EVM wallet such as Rabby (recommended) or MetaMask installed in your browser.

• Some WCO to pay gas fees on W Chain.

• Bridged or existing assets on W Chain. If your assets are on Ethereum or BNB Chain, you can use the Bridge page to bring them to W Chain first.

Connect Your Wallet

1. Open W Swap and click Connect Wallet.

2. Select your wallet—Rabby (recommended) offers enhanced transaction safety; MetaMask is also supported.

3. Switch to W Chain in your wallet when prompted. If W Chain is not added, the app can suggest adding it automatically.

Select Tokens and Amounts

1. On the Trade page, use the token selectors for From and To.

2. Choose a token from the list or paste a contract address for custom tokens.

3. Enter the From amount; the interface quotes the estimated output and route.

4. Review:

   • Price Impact: Expected slippage due to trade size vs. pool depth.

   • Minimum Received: Accounted for slippage tolerance.

   • Route: The path across pools the trade will take.

Notes on Wrapped Native Token:

• Some interfaces label the wrapped native token as WETH historically. On W Chain, the native token is WCO, and its wrapped form may be shown as Wrapped WCO (WWCO). Treat any “WWCO or WETH” entry as the wrapped version of WCO used in pools.

Allowance Approval (If Required)

Many ERC‑20 tokens require an on-chain approval before they can be spent by the router.

1. If you see an Approve button, click it to submit an approval transaction.

2. Wait for confirmation in your wallet and the explorer.

3. Once approved, the Swap button becomes available.

Settings: Slippage and Deadline

• Slippage Tolerance: Adjust in the settings panel to control acceptable price movement. A typical range is 0.1%–1% for liquid pools; higher for illiquid assets.

• Transaction Deadline: Prevents stuck trades; the swap reverts if not included before the deadline.

• Expert Mode: If available, use with caution; it disables some safety checks.

Execute the Trade

1. Click Trade (the button may be labeled Swap in the UI).

2. Review the summary in the confirmation modal.

3. Confirm in your wallet and wait for the transaction to be mined.

4. Track the transaction via the link to scan.w-chain.com provided by the DApp.

Troubleshooting

• Insufficient Liquidity: Try smaller amounts or a different route.

• Approval Failed: Reopen your wallet, confirm permissions, and retry.

• High Price Impact Warning: Reduce trade size or split into smaller trades.

• Transaction Reverted: Increase slippage tolerance slightly or check token allowances.

• Stuck/Pending: Consider increasing gas settings in your wallet and resubmitting.

Safety Tips

• Only paste token addresses from trusted sources.

• Double-check the Minimum Received value matches expectations.

• Keep some WCO for gas; trades will fail if your gas balance is 0.

FAQs

• Can I trade from Ethereum or BNB Chain directly? No, first bridge supported assets to W Chain using the Bridge page, then trade on W Chain.

• Why do I see Approve before Trade? ERC‑20 tokens require a one-time allowance for the router to spend your tokens.

• Where do I view my transaction? Use the explorer link (e.g., https://scan.w-chain.com/tx/<hash>).