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import type { AxiosError, AxiosResponse } from 'axios'
import { Api } from 'nocodb-sdk'
import type { Ref } from 'vue'
import type { CreateApiOptions, UseApiProps, UseApiReturn } from './types'
import { addAxiosInterceptors } from './interceptors'
export function createApiInstance<SecurityDataType = any>({
baseURL: _baseUrl = BASE_FALLBACK_URL,
}: CreateApiOptions = {}): Api<SecurityDataType> {
const config = useRuntimeConfig()
const baseURL = config.public.ncBackendUrl || _baseUrl
return addAxiosInterceptors(
new Api<SecurityDataType>({
baseURL,
}),
)
}
/**
* Api composable that provides loading, error and response refs, as well as event hooks for error and response.
*
* You can use this composable to generate a fresh api instance with its own loading and error refs.
*
* Any request called by useApi will be pushed into the global requests counter which toggles the global loading state.
*
* @example
* ```js
* const { api, isLoading, error, response, onError, onResponse } = useApi()
*
* const onSignIn = async () => {
* const { token } = await api.auth.signIn(form)
* }
*/
export function useApi<Data = any, RequestConfig = any>({
useGlobalInstance = false,
apiOptions,
axiosConfig,
}: UseApiProps<Data> = {}): UseApiReturn<Data, RequestConfig> {
/**
* Local state of running requests, do not confuse with global state of running requests
* This state is only counting requests made by this instance of `useApi` and not by other instances.
*/
const { count, inc, dec } = useCounter(0)
/** is request loading */
const isLoading = ref(false)
/** latest request error */
const error = ref(null)
/** latest request response */
const response = ref<unknown | null>(null)
const errorHook = createEventHook<AxiosError<Data, RequestConfig>>()
const responseHook = createEventHook<AxiosResponse<Data, RequestConfig>>()
const nuxtApp = useNuxtApp()
/** api instance - with interceptors for token refresh already bound */
const api = useGlobalInstance && !!nuxtApp.$api ? nuxtApp.$api : createApiInstance(apiOptions)
/** set loading to true and increment local and global request counter */
function onRequestStart() {
isLoading.value = true
/** local count */
inc()
/** global count */
nuxtApp.$state.runningRequests.inc()
}
/** decrement local and global request counter and check if we can stop loading */
function onRequestFinish() {
/** local count */
dec()
/** global count */
nuxtApp.$state.runningRequests.dec()
/** try to stop loading */
stopLoading()
}
/** set loading state to false *only* if no request is still running */
function stopLoading() {
if (count.value === 0) {
isLoading.value = false
}
}
/** reset response and error refs */
function reset() {
error.value = null
response.value = null
}
api.instance.interceptors.request.use(
(config) => {
reset()
onRequestStart()
return {
...config,
...unref(axiosConfig),
}
},
async (requestError) => {
errorHook.trigger(requestError)
error.value = await extractSdkResponseErrorMsg(requestError)
response.value = null
onRequestFinish()
return Promise.reject(requestError)
},
)
api.instance.interceptors.response.use(
(apiResponse) => {
responseHook.trigger(apiResponse as AxiosResponse<Data, RequestConfig>)
response.value = apiResponse
onRequestFinish()
return Promise.resolve(apiResponse)
},
async (apiError) => {
errorHook.trigger(apiError)
error.value = await extractSdkResponseErrorMsg(apiError)
onRequestFinish()
return Promise.reject(apiError)
},
)
return {
api,
isLoading,
response: response as Ref<AxiosResponse<Data, RequestConfig>>,
error,
onError: errorHook.on,
onResponse: responseHook.on,
}
}