Deno Oak Rest + SPA routing

index.ts

const app = new oak.Application();

// API routes
const apiRouter = new oak.Router({ prefix: "/api" });
apiRouter.get("/users", async (context) => {
    context.response.body = await service.getUsers();
});
app.use(apiRouter.routes());
app.use(apiRouter.allowedMethods());

app.use(async (context) => {
    // for front routing
    await oak.send(context, "index.html", {
      root: `${Deno.cwd()}/static`,
    });
  });

app.use(async (context) => {
    // serve static files (css, js, ...)
    await oak.send(context, context.request.url.pathname, {
      root: `${Deno.cwd()}/static`,
    });
  });
app.listen({ port: 8000 });