fix sitemap.xml timeouts

pages/notes/[slug].tsx

@@ -9,10 +9,10 @@ import { getNoteSlugs } from "../../lib/helpers/parse-notes";
 import { compileNote } from "../../lib/helpers/compile-note";
 import * as config from "../../lib/config";
 import { articleJsonLd, favicons } from "../../lib/config/seo";
-import type { GetStaticProps, GetStaticPaths } from "next";
+import type { GetStaticProps, GetStaticPaths, InferGetStaticPropsType } from "next";
 import type { NoteWithSource, NoteFrontMatter } from "../../types";
 
-const Note = ({ frontMatter, source }: NoteWithSource) => {
+const Note = ({ frontMatter, source }: InferGetStaticPropsType<typeof getStaticProps>) => {
   return (
     <>
       <NextSeo

pages/notes/index.tsx

@@ -3,14 +3,10 @@ import Content from "../../components/Content";
 import NotesList from "../../components/NotesList";
 import { getAllNotes } from "../../lib/helpers/parse-notes";
 import { authorName } from "../../lib/config";
-import type { GetStaticProps } from "next";
+import type { GetStaticProps, InferGetStaticPropsType } from "next";
 import type { NotesByYear } from "../../types";
 
-type StaticProps = {
+const Notes = ({ notesByYear }: InferGetStaticPropsType<typeof getStaticProps>) => {
-  notesByYear: NotesByYear;
-};
-
-const Notes = ({ notesByYear }: StaticProps) => {
   return (
     <>
       <NextSeo
@@ -28,7 +24,9 @@ const Notes = ({ notesByYear }: StaticProps) => {
   );
 };
 
-export const getStaticProps: GetStaticProps<StaticProps> = async () => {
+export const getStaticProps: GetStaticProps<{
+  notesByYear: NotesByYear;
+}> = async () => {
   // parse the year of each note and group them together
   const notes = await getAllNotes();
   const notesByYear: NotesByYear = {};

pages/projects.tsx

@@ -7,7 +7,7 @@ import RepositoryCard from "../components/RepositoryCard";
 import { OctocatOcticon } from "../components/Icons";
 import { styled } from "../lib/styles/stitches.config";
 import { authorSocial } from "../lib/config";
-import type { GetStaticProps } from "next";
+import type { GetStaticProps, InferGetStaticPropsType } from "next";
 import type { User, Repository } from "@octokit/graphql-schema";
 import type { Project } from "../types";
 
@@ -42,11 +42,7 @@ const GitHubLogo = styled(OctocatOcticon, {
   fill: "$text",
 });
 
-type StaticProps = {
+const Projects = ({ repos }: InferGetStaticPropsType<typeof getStaticProps>) => {
-  repos: Project[];
-};
-
-const Projects = ({ repos }: StaticProps) => {
   return (
     <>
       <NextSeo
@@ -75,7 +71,9 @@ const Projects = ({ repos }: StaticProps) => {
   );
 };
 
-export const getStaticProps: GetStaticProps<StaticProps> = async () => {
+export const getStaticProps: GetStaticProps<{
+  repos: Project[];
+}> = async () => {
   // don't fail the entire site build if the required API key for this page is missing
   if (typeof process.env.GH_PUBLIC_TOKEN === "undefined" || process.env.GH_PUBLIC_TOKEN === "") {
     console.warn(`ERROR: I can't fetch any GitHub projects without "GH_PUBLIC_TOKEN" set! Skipping for now...`);

pages/site.webmanifest.ts

@@ -3,6 +3,13 @@ import { favicons } from "../lib/config/seo";
 import type { GetServerSideProps } from "next";
 
 export const getServerSideProps: GetServerSideProps<Record<string, never>> = async (context) => {
+  const { res } = context;
+
+  // https://developer.mozilla.org/en-US/docs/Web/Manifest#deploying_a_manifest
+  res.setHeader("content-type", "application/manifest+json; charset=utf-8");
+  // cache on edge for one week
+  res.setHeader("cache-control", "public, max-age=0, s-maxage=604800, stale-while-revalidate");
+
   const manifest = {
     name: config.siteName,
     short_name: config.siteDomain,
@@ -37,12 +44,6 @@ export const getServerSideProps: GetServerSideProps<Record<string, never>> = asy
     display: "browser",
     start_url: "/",
   };
-  const { res } = context;
-
-  // https://developer.mozilla.org/en-US/docs/Web/Manifest#deploying_a_manifest
-  res.setHeader("content-type", "application/manifest+json; charset=utf-8");
-  // cache on edge for one week
-  res.setHeader("cache-control", "public, max-age=0, s-maxage=604800, stale-while-revalidate");
 
   res.write(JSON.stringify(manifest));
   res.end();

pages/sitemap.xml.ts

@@ -1,12 +1,20 @@
-import { SitemapStream, streamToPromise, SitemapItemLoose, EnumChangefreq } from "sitemap";
+import { SitemapStream, SitemapItemLoose, EnumChangefreq } from "sitemap";
 import { getAllNotes } from "../lib/helpers/parse-notes";
 import { baseUrl } from "../lib/config";
 import { RELEASE_DATE } from "../lib/config/constants";
 import type { GetServerSideProps } from "next";
 
 export const getServerSideProps: GetServerSideProps<Record<string, never>> = async (context) => {
+  const { res } = context;
   const stream = new SitemapStream({ hostname: baseUrl });
 
+  // cache on edge for 12 hours
+  res.setHeader("cache-control", "public, max-age=0, s-maxage=43200, stale-while-revalidate");
+  res.setHeader("content-type", "application/xml; charset=utf-8");
+
+  // related: https://github.com/vercel/next.js/discussions/15453
+  stream.pipe(res);
+
   // TODO: make this not manual (serverless functions can't see filesystem at runtime)
   const pages: SitemapItemLoose[] = [
     {
@@ -32,13 +40,13 @@ export const getServerSideProps: GetServerSideProps<Record<string, never>> = asy
 
   // push notes separately and use their metadata
   const notes = await getAllNotes();
-  notes.forEach((note) =>
+  notes.forEach((note) => {
     pages.push({
       url: `/notes/${note.slug}/`,
       // pull lastMod from front matter date
       lastmod: new Date(note.date).toISOString(),
-    })
+    });
-  );
+  });
 
   // set lastmod of /notes/ page to most recent post's date
   pages.push({
@@ -53,17 +61,9 @@ export const getServerSideProps: GetServerSideProps<Record<string, never>> = asy
   pages.forEach((page) => {
     stream.write(page);
   });
+
   stream.end();
 
-  // cache on edge for 12 hours
-  const { res } = context;
-  res.setHeader("cache-control", "public, max-age=0, s-maxage=43200, stale-while-revalidate");
-  res.setHeader("content-type", "application/xml; charset=utf-8");
-
-  // finally write the resulting XML
-  res.write(await streamToPromise(stream));
-  res.end();
-
   return {
     props: {},
   };