useFeeData – wagmi

Documentation

Hooks

useFeeData

Hook for fetching fee information.

import { useFeeData } from 'wagmi'

Usage

import { useFeeData } from 'wagmi'

const App = () => {
  const [{ data, error, loading }, getFeeData] = useFeeData()

  if (loading) return <div>Fetching fee data…</div>
  if (error) return <div>Error fetching fee data</div>
  return <div>{data?.formatted?.maxFeePerGas}</div>
}

Return Values

result

{
  data?: {
    gasPrice: BigNumber
    maxFeePerGas: BigNumber
    maxPriorityFeePerGas: BigNumber
    formatted: {
      gasPrice: string
      maxFeePerGas: string
      maxPriorityFeePerGas: string
    }
  }
  error?: Error
  loading?: boolean
}

getFeeData

() => Promise<{
  data?: {
    gasPrice: BigNumber
    maxFeePerGas: BigNumber
    maxPriorityFeePerGas: BigNumber
  }
  error?: Error
}>

Configuration

formatUnits (optional)

Formats balance using ethers.js units. Defaults to wei.

import { useFeeData } from 'wagmi'

const App = () => {
  const [{ data, error, loading }, getFeeData] = useFeeData({
    formatUnits: 'gwei',
  })

  return ...
}

skip (optional)

Skips automatically fetching data on mount. Defaults to false. Useful if you want to call getFeeData manually at some other point.

import { useFeeData } from 'wagmi'

const App = () => {
  const [{ data, error, loading }, getFeeData] = useFeeData({
    skip: true,
  })

  return ...
}

watch (optional)

Watches and refreshes balance for new blocks.

import { useFeeData } from 'wagmi'

const App = () => {
  const [{ data, error, loading }, getFeeData] = useFeeData({
    watch: true
  })

  return ...
}

useEnsResolver

useNetwork