Typescript
swr-vue is written in typescript and is type safe out of the box.
Generics
To specify the type of data by default, it will use the return type of fetcher (with undefined for the non-ready state) as the data type, but you can also pass it as a parameter:
ts
// Specify the data type:
// `fetchUser` is `(endpoint: string) => User`.
const { data } = useSWR<User>('/api/user', fetchUser)
// Specify the error type:
// `fetchUser` is `(endpoint: string) => User`.
const { data } = useSWR<User, UserFetchError>('/api/user', fetchUser)