switchEtherNetwork

The switchEtherNetwork function expects a chainId in HEX base. You can parse a decimal id using the parse nano-module.

import { switchEtherNetwork } from "@forta/usemetamask"

const RIKEBY_ID = "0x4"

function SwitchToRinkeby() {
  return (
    <Button onClick={() => switchEtherNetwork(RIKEBY_ID)}>
      Switch Network
    </Button>
  )
}

Example using a decimal chainId using the parse nano-module.

import { switchEtherNetwork, parse } from "@forta/usemetamask"

const RIKEBY_ID = oarse.toHex(4) // 0x4

function SwitchToRinkeby() {
  return (
    <Button onClick={() => switchEtherNetwork(RIKEBY_ID)}>
      Switch Network
    </Button>
  )
}