frontend/src/serviceWorker/fetchHandlers.ts

37 lines
953 B
TypeScript

import { saveBook } from "./db";
export interface PathHandler {
/** Path start for handler */
path: string;
/** Function returning Response object */
getResponse: () => Response | Promise<Response>;
}
/**
* Routes fetch request path to specified handler
*/
export const handle = (requestPath: string, table: PathHandler[]) => {
for (const { path, getResponse: response } of table)
if (requestPath.startsWith(path)) return response();
return new Response();
};
/**
* Converts book to html with publiteBackend server.
*
* First fetch handler with network request
*/
export const handleBookUpload = async (request: Request) => {
try {
const res = await fetch(request);
if (res.ok) {
const book = await res.json();
await saveBook(book);
return new Response(book);
} else throw new Error(res.status.toString() + res.statusText);
} catch (err) {
return new Response(JSON.stringify(err));
}
};