watchClient

Subscribe to Client changes.

Import

import { watchClient } from '@wagmi/core'

Usage

index.ts

import { watchClient } from '@wagmi/core'
import { config } from './config'

const unwatch = watchClient(config, {
  onChange(client) {
    console.log('Client changed!', client)
  },
})
unwatch()

config.ts

import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

Parameters

import { type WatchClientParameters } from '@wagmi/core'

onChange

onChange(client: GetClientReturnType, prevClient: GetClientReturnType): void

Callback function called when Client changes.

index.ts

import { watchClient } from '@wagmi/core'
import { config } from './config'

const unwatch = watchClient(config, {
  onChange(client) { 
    console.log('Client changed!', client)
  },
})
unwatch()

config.ts

import { http, createConfig } from '@wagmi/core'
import { mainnet, sepolia } from '@wagmi/core/chains'

export const config = createConfig({
  chains: [mainnet, sepolia],
  transports: {
    [mainnet.id]: http(),
    [sepolia.id]: http(),
  },
})

Return Type

import { type WatchClientReturnType } from '@wagmi/core'

Function for cleaning up watcher.