Typescript support

typings/@sapper/index.d.ts

@@ -0,0 +1,41 @@
+declare module '@sapper/app' {
+  interface Redirect {
+    statusCode: number
+    location: string
+  }
+
+  function goto(
+    href: string,
+    opts: { replaceState: boolean; noscroll: boolean }
+  ): Promise<unknown>
+  function prefetch(
+    href: string
+  ): Promise<{ redirect?: Redirect; data?: unknown }>
+  function prefetchRoutes(pathnames: string[]): Promise<unknown>
+  function start(opts: { target: Node }): Promise<unknown>
+  const stores: () => unknown
+
+  export { goto, prefetch, prefetchRoutes, start, stores }
+}
+
+declare module '@sapper/server' {
+  import { RequestHandler } from 'express'
+
+  interface MiddlewareOptions {
+    session?: (req: Express.Request, res: Express.Response) => unknown
+    ignore?: unknown
+  }
+
+  function middleware(opts?: MiddlewareOptions): RequestHandler
+
+  export { middleware }
+}
+
+declare module '@sapper/service-worker' {
+  const timestamp: number
+  const files: string[]
+  const shell: string[]
+  const routes: { pattern: RegExp }[]
+
+  export { timestamp, files, files as assets, shell, routes }
+}