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useRequest.ts
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useRequest.ts
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import useSWR, { SWRConfiguration, SWRResponse } from 'swr'
import axios, { AxiosRequestConfig, AxiosResponse, AxiosError } from 'axios'
export type GetRequest = AxiosRequestConfig | null
interface Return<Data, Error>
extends Pick<
SWRResponse<AxiosResponse<Data>, AxiosError<Error>>,
'isValidating' | 'error' | 'mutate'
> {
data: Data | undefined
response: AxiosResponse<Data> | undefined
}
export interface Config<Data = unknown, Error = unknown>
extends Omit<
SWRConfiguration<AxiosResponse<Data>, AxiosError<Error>>,
'fallbackData'
> {
fallbackData?: Data
}
export default function useRequest<Data = unknown, Error = unknown>(
request: GetRequest,
{ fallbackData, ...config }: Config<Data, Error> = {}
): Return<Data, Error> {
const {
data: response,
error,
isValidating,
mutate
} = useSWR<AxiosResponse<Data>, AxiosError<Error>>(
request && JSON.stringify(request),
/**
* NOTE: Typescript thinks `request` can be `null` here, but the fetcher
* function is actually only called by `useSWR` when it isn't.
*/
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
() => axios.request<Data>(request!),
{
...config,
fallbackData: fallbackData && {
status: 200,
statusText: 'InitialData',
// eslint-disable-next-line @typescript-eslint/no-non-null-assertion
config: request!,
headers: {},
data: fallbackData
}
}
)
return {
data: response && response.data,
response,
error,
isValidating,
mutate
}
}