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July 17, 2023 08:55
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routes.ts
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import { createBrowserRouter, RouteObject } from 'react-router-dom' | |
const routes = [ | |
myRoute1, | |
myRoute2, | |
myRoute3, | |
] satisfies RouteObject[] | |
type Route = { | |
[key: string]: any | |
readonly index?: boolean | |
readonly path?: string | |
children?: Route[] | |
} | |
// prefixes a "/" to T["path"] if "nested" is true | |
type PathsUnionHelper<T extends Route, nested extends boolean> = T['path'] extends string | |
? `${nested extends true ? '/' : ''}${T['path']}` | |
: '' | |
// extracts all route full-paths in the application | |
type PathsUnion<T extends Array<Route>, nested extends boolean> = T extends Array<infer U> | |
? U extends Route | |
? // routes that don't have "path" are ignored, including routes that are {index: true} | |
'path' extends keyof U | |
? // if "path" exists in Route then add it to the path list | |
| PathsUnionHelper<U, nested> | |
// if "children" exists in Route then go through the children recursively prefixing | |
// U["path"] to the childrens "path" and add them to the list as well | |
| `${PathsUnionHelper<U, nested>}${U extends { children: any } | |
? `${PathsUnion<U['children'], true>}` | |
: // if Route doesn't have children just add the same value again: | |
''}` | |
: never | |
: never | |
: never | |
// contains all routes paths, including nested routes ( routes[number].children[number].path ) | |
export type RoutePaths = PathsUnion<typeof routes, false> | |
export browserRouter = createBrowserRouter(routes) |
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