PancakeSwap
Launch App
English
English
  • Welcome to PancakeSwap
    • Product Overview
    • ✨How-to Guides
      • Get Started (BSC)
        • Create a Wallet
        • Get BEP20 Tokens
        • Using PancakeSwap without Centralized Exchanges
        • Connect Your Wallet to PancakeSwap
      • Get Started (Aptos)
        • Create a Wallet
        • Get Aptos Coins
        • CAKE Bridging Guide
        • Connect Your Wallet to PancakeSwap
        • Aptos FAQ
      • V3/V2 Migration
        • How to migrate
        • How v3 APR is calculated
        • FAQ
        • V2 Migration
          • Migrate Your Stakings
          • MasterChef v2
            • List of Farms
          • CAKE Syrup Pool
    • 🗺️Roadmap
    • veCAKE Sunset
      • Staked Cake Redemption
      • 🔷[Archive] veCAKE
        • What is veCAKE?
        • How to get veCAKE?
        • Migrate from CAKE Pool
        • veCAKE Managers
        • Bridge your veCAKE
        • Earn CAKE Weekly
          • FAQ
    • 📈Analytics (Info Page)
    • ✅Audits
    • 🤙Contact Us
      • Social Accounts
      • Telegram & Discord Communities
      • 💼Business Partnerships
        • ⛽veCAKE / Gauges
        • 🧑‍🌾Initial Farm Offerings - IFOs
        • 🥞Syrup Pools and Farms
        • 🖼️NFT Marketplace
        • ❓Commonly Asked Business Partnerships Questions
      • Ambassador Program
        • What can you do as an Ambassador?
        • Benefits of a PancakeSwap Ambassador
        • Want to be an Ambassador?
        • ❓ FAQs Page
      • General FAQ
        • I need help
        • Troubleshooting Errors
        • What is an Approval Transaction?
        • Fixing Stuck Pending Transactions on MetaMask
    • 👨‍👨‍👦About Us
      • Team
        • The Kitchen Team
        • Become a Chef
          • Brand / Graphics Designer
          • Motion / Interaction Designer
          • Social Media & Content Manager
          • Developer Relations Manager
          • Product Designer (UX/I)
          • Business Development Manager
          • Senior Backend Engineer
      • Brand & Logos
  • 👴Archive
    • 📂Legacy Products
      • 🖼️[Archived] NFT Marketplace
      • 🎮[Archived] Gaming Platform
        • 📒Brand Kit
        • 🎓Pancake Mayor
        • 🛡️Pancake Protectors
          • FAQ
      • 🍯[Archived] Pottery
        • How to Play Pottery
        • Pottery FAQ
      • 🧈[Archived] Trading Reward
        • How to Participate
          • Top Traders Campaign
          • CAKE Stakers Campaign
        • FAQ
      • 🤝[Archived] Simple Staking
        • How to start Simple Staking
        • FAQ
        • Terms & Conditions
      • 🎯[Archived] PancakeSwap Quest
        • Getting Started
        • How to Join and Complete a Quest
        • Rewards
      • 💧[Archived] Liquid Staking Integration
        • How To Liquid Stake
        • WBETH
          • WBETH FAQ
        • SnBNB
          • SnBNB FAQ
      • 💸[Archived] Options
        • Options Primer
        • CLAMM Options
        • Options FAQ
      • [Archived] CAKE Syrup Pool
        • How to use the Flexible Staking option
        • How to use the Fixed-Term Staking option
    • Old Tokenomics
      • CAKE Tokenomics v1
      • Controlling CAKE supply v1
    • How to Use Farms with BscScan
    • [Archived] Affiliate Program
      • Dashboard & Link
      • Commission Structure and Payment
      • Program Rules & Guidelines
      • Terms & Conditions
  • Trade
    • 🔄Swap
      • Token Swaps
      • How to Trade
      • Fees and Routes
      • Market Maker Integration
      • Smart Router (V2)
        • How to trade using Smart Router
    • ♾️PancakeSwap Infinity
      • Key Features
      • Hooks
        • Dynamic Fee Hook
      • Pool Types
      • Farms
    • 🎯Limit Orders and Twap
      • How to use Limit Orders
      • How to use TWAP
    • 📈Perpetual Trading
      • What is Perpetual Trading?
      • Perpetual Trading V2
        • How can I use it?
        • Dumb Mode
          • Dumb Mode Guide
        • Degen Mode
          • Degen Mode Dynamic Fee
        • MADBTCUSD
          • MADBTCUSD FAQ
        • Perpetuals V2 Glossary
        • Forex
        • Perpetual Trading FAQ
          • Arbitrum
            • ALP Syrup Pool (Arbitrum)
              • ALP Buying & Selling Fees
        • Trading Rewards Program
          • Arbitrum
        • Supported Chains, Modes & Markets
      • Perpetual Trading V1
        • Perpetuals V1 Glossary
        • How can I use it?
        • V1 Perpetual Trading FAQ
    • 🏦Stableswap
      • How to StableSwap
    • 💳Buy Crypto
    • ❓Trading FAQ
      • Swap FAQ
      • v4 FAQ
      • Limit Orders and TWAP FAQ
  • Bridge
    • 🌉Bridging
      • Between EVMs
      • Between EVM and Aptos
      • Wormhole Bridge Guide
    • ❓Bridging FAQ
      • Wormhole Bridge FAQ
  • Earn
    • 🌊Liquidity Pools
      • How to Add/Remove Liquidity
      • ⛏️Pancake Picks
      • Zap
        • Zap (V2)
    • 🚜Yield Farming
      • How to Use Farms
        • How to Use Farms (Legacy)
      • APR/ROI/IL Calculator
      • Farming on Aptos
        • FAQ
      • Crosschain Farming
        • FAQ
    • 🥩Cake Staking
      • 🍯Syrup Pools - Stake CAKE
        • Syrup Pools
    • 🛍️IFO (Initial Farm Offering)
      • How to Participate in an IFO
      • How to Participate in CrossChain IFOs
      • FAQ
      • NFT Profile System
        • How to Set Up an NFT Profile
        • Teams
      • Contract Details
    • ❓Earn FAQ
      • Cake Staking FAQ
        • Syrup Pool FAQ & Troubleshooting
  • Play
    • 🔮Prediction
      • How to Use Prediction
      • AI Prediction
      • Prediction FAQ
      • Prediction Troubleshooting
      • Prediction Mini App
    • 🎟️Lottery
      • How to Play Lottery
      • Lottery FAQ
  • ❓Play FAQ
  • Trading Tools
    • 🛡️PancakeSwap MEV Guard
    • PancakeSwap Auto Slippage
      • How to Set Slippage on PancakeSwap
    • 🔔Notifications
    • ❓Trading Tools FAQ
      • MEV Guard FAQ
  • Protocol
    • 🍰CAKE Tokenomics
    • 📔Governance
      • How to Vote
    • 💻Developers
      • Developer Docs
      • Contributing
        • Codebase Overview
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  1. To Delete
  2. Smart Contracts (EVM)
  3. PancakeSwap Exchange
  4. v3 contracts
  5. SmartRouterV3

V2SwapRouter

Router for stateless execution of swaps against PancakeSwap V2

Solidity API

swapExactTokensForTokens

function swapExactTokensForTokens(uint256 amountIn, uint256 amountOutMin, address[] path, address to) external payable returns (uint256 amountOut)

Swaps amountIn of one token for as much as possible of another token

Setting amountIn to 0 will cause the contract to look up its own balance, and swap the entire amount, enabling contracts to send tokens before calling this function.

Parameters

Name
Type
Description

amountIn

uint256

The amount of token to swap

amountOutMin

uint256

The minimum amount of output that must be received

path

address[]

The ordered list of tokens to swap through

to

address

The recipient address

Return Values

Name
Type
Description

amountOut

uint256

The amount of the received token

swapTokensForExactTokens

function swapTokensForExactTokens(uint256 amountOut, uint256 amountInMax, address[] path, address to) external payable returns (uint256 amountIn)

Swaps as little as possible of one token for an exact amount of another token

Parameters

Name
Type
Description

amountOut

uint256

The amount of token to swap for

amountInMax

uint256

The maximum amount of input that the caller will pay

path

address[]

The ordered list of tokens to swap through

to

address

The recipient address

Return Values

Name
Type
Description

amountIn

uint256

The amount of token to pay

Last updated 1 year ago

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