Squid Dev Documentation
  • Getting Started
    • Overview
    • Get an Integrator ID
    • Integrator Quickstart
  • Widget Integration
    • Add A Widget
      • Swap widget
        • Getting Started
        • Installing the Widget
        • React Installation
        • NextJS Installation
        • Vite Installation
        • Iframe Installation
        • Customization Guide
          • Default User Settings
          • Configuring Content
          • Default Chains and Tokens
          • Configuration Types
          • Collect Fees
        • Information for Integrators
        • Set default chains and tokens via URL
        • Errors
    • Upgrade Your Widget
  • API & SDK Integration
    • API
      • Swap & Bridge Example
      • Staking Example
      • Cross-chain NFT Purchase Example
      • Get Route Status
    • SDK
      • Cross-chain Swap Example
      • Staking Example
      • Cross-chain NFT Purchase Example
      • Get Route Status
    • Key Concepts
      • Route Request Parameters
      • Get a route
      • Execute the route
      • 🪝Hooks
        • How do hooks work
        • Build a preHook
        • Build a postHook
        • Using the full ERC20 or Native balance in a call
        • ❗Transfer the remainder to the user
        • Get a route and execute as normal
      • Express
      • Track status
      • Types
      • Collect Fees
      • Get supported tokens and chains
    • Coral: Intent Swaps
      • Integrating Coral
    • NEW: Bitcoin and Solana
  • Adding Tokens
    • Whitelist a Token
    • Interchain Token(ITS) Listings
      • How To List
    • Circle's EURC Integration Guide
  • Migration
    • Squid v2 vs Squid v1
    • v1 -> v2 Migration
  • Additional Resources
    • Contracts
    • Squid v1 Docs
      • SDK
        • Installing our SDK
        • Get supported tokens and chains
          • Example chains response
          • Example tokens response
        • Set your transfer parameters
        • Get a route
          • Understanding the route response
        • Execute your swap or call
        • Get Route Status
        • Contract calls
          • Code example
          • Creating a ContractCall object
          • Contract call types
          • Approving ERC20s in our multicall
          • Transferring the remainder to a user
        • Collect Fees
          • Fee collector contract addresses
        • Working example!
      • API
        • integratorId
        • API playground
        • Base URLs
        • Get supported tokens and chains
        • Get a route
        • Checking the status of a transaction
        • Error codes
          • V2 API
      • Cosmos
        • Installing our SDK
        • Get supported tokens and chains
          • Example chains response
          • Example tokens response
        • Set your transfer parameters
        • Get a route
          • Cosmos route response
        • Execute your swap or call on Cosmos
        • Get Route Status
        • Cosmos custom calls
        • Working cosmos example!
        • Fallback Addresses
    • Additional Dev Resources
      • Choose How To Integrate Squid
      • Squid x Tenderly
      • Testnet or Mainnet?
      • Understanding Gas Payments
      • Supported Chains and Tokens
      • Request a new supported token
      • Liquidity Sources
        • axlASSET Liquidity
      • Integrator type specific docs
        • DEXs
        • Aggregators
        • NFTs
      • Setting up an EVM signer
      • Setting up Cosmos signer
      • Contract addresses
      • SDK easter eggs
        • Setting toAmount
        • getAllBalances
        • Advanced set up
        • Manually approve a route
        • Manually approve an ERC20
      • Whitelist a token
      • Security & Audits
        • Security
        • Audits
        • Axelar
      • Get an integrator-id
    • Architecture
      • FAQ
      • Liquidity model
      • Architecture
      • General message passing (GMP)
      • Transaction times and fees
      • Fallback behaviour on failed transactions
      • Axelar
    • Brand Assets
      • "Powered by Squid" Policy
    • Audits & Security
    • Contact
  • Changelog
    • SDK
      • v1.3
      • v1.2
    • API
      • v1.9
      • v1.8
      • v1.7
      • v1.6
  • Old v2 Documentation (Deprecated)
    • Whitelist a Token
    • Interchain Token(ITS) Listings
      • How To List
    • Add A Widget
      • Swap widget
        • Getting Started
        • Installing the Widget
        • React Installation
        • NextJS Installation
        • Iframe Installation
        • Customization Guide
          • Default User Settings
          • Theme Customization
          • Configuring Content
          • Default Chains and Tokens
          • Configuration Types
          • Collect fees
        • Information for Integrators
        • Set default chains and tokens via URL
        • Errors
      • Stake widget
        • Installing the Widget
        • Configuration
        • Importing The widget
    • Quick Start
    • API
      • Swap & Bridge Example
      • Staking Example
      • Cross-chain NFT Purchase Example
    • SDK
      • Cross-chain Swap Example
      • Staking Example
      • Cross-chain NFT Purchase Example
    • Key Concepts
      • Route Request Parameters
      • Get a route
      • Execute the route
      • 🪝Hooks
        • How do hooks work
        • Build a preHook
        • Build a postHook
        • Using the full ERC20 or Native balance in a call
        • ❗Transfer the remainder to the user
        • Add your hooks to a route request, or widget
        • Get a route and execute as normal
      • Boost
      • Track status
      • Types
      • Collect Fees
      • Get supported tokens and chains
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On this page
  1. Old v2 Documentation (Deprecated)
  2. Key Concepts
  3. Hooks

How do hooks work

PreviousHooksNextBuild a preHook

Last updated 11 months ago

Squid's hooks are powered by the An arbitrary number of calls can be executed before or after a swap or bridge.

Note that hooks can be executed before or after a single chain swap too.

🪝
Squid Multicall contract.