You can add them in web/config/storybook.preview.js
:
import React from 'react'
import { registerHandler } from '@redwoodjs/testing/web'
import { handlers } from '../src/mocks'
export const decorators = [
(Story) => {
React.useEffect(() => {
for (const handler of handlers) {
registerHandler(handler)
}
}, [])
return <Story />
},
]