b94123ccc9
* Added the RouteUrl type and improved router types * Added more tests for router types * Add build test for typescript types * Add next-env.d.ts to the typescript test * Removed next-env.d.ts * Added next-env.d.ts to gitignore * Remove route url re-exports * renamed PublicRouterInstance to be NextRouter * export the Url type * Replaced BaseRouter with NextRouter in server/utils * Don't export the Url type * Update tsconfig.json
75 lines
2.2 KiB
TypeScript
75 lines
2.2 KiB
TypeScript
import { useContext } from 'react'
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import { DataManagerContext } from 'next-server/dist/lib/data-manager-context'
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import { RouterContext } from 'next-server/dist/lib/router-context'
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import fetch from 'unfetch'
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import { stringify } from 'querystring'
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type Args = string | number | Array<string | number>
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function generateArgsKey(args: Args[]) {
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return args.reduce((a: string, b: Args): string => {
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if (Array.isArray(b)) {
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return a + generateArgsKey(b)
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}
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if (typeof b !== 'string' && typeof b !== 'number') {
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throw new Error('arguments can only be string or number')
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}
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return a + b.toString()
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}, '')
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}
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export function createHook(
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fetcher: (...args: Args[]) => Promise<any>,
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options: { key: string }
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) {
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if (!options.key) {
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throw new Error('key not provided to createHook options.')
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}
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return function useData(...args: Array<string | number>) {
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const router: import('next-server/lib/router/router').NextRouter = useContext(
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RouterContext
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)
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const dataManager: import('next-server/lib/data-manager').DataManager = useContext(
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DataManagerContext
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)
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const key = `${options.key}${generateArgsKey(args)}`
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const existing = dataManager.get(key)
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if (existing) {
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if (existing.status === 'resolved') {
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return existing.result
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}
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if (existing === 'mismatched-key') {
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throw new Error(
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'matching key was missing from returned data. make sure arguments match between the client and server'
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)
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}
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}
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// @ts-ignore webpack optimization
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if (typeof window !== 'undefined') {
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const res = fetch(router.route + '?' + stringify(router.query), {
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headers: {
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accept: 'application/amp.bind+json',
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},
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})
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.then((res: any) => res.json())
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.then((result: any) => {
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const hasKey = result.some((pair: [string, any]) => pair[0] === key)
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if (!hasKey) {
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result = [[key, 'mismatched-key']]
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}
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dataManager.overwrite(result)
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})
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throw res
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} else {
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const res = fetcher(...args).then(result => {
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dataManager.set(key, {
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status: 'resolved',
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result,
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})
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})
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throw res
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}
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}
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}
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