Dynamic og images

apps/website/app/api/og/[...path]/route.tsx

@@ -0,0 +1,308 @@
+import { ImageResponse } from "@vercel/og";
+import { getBlogMetadata } from "@/utils/blog";
+import { getDocsMetadata } from "@/utils/docs";
+import { formatDate } from "@/utils/format-date";
+import type { NextRequest } from "next/server";
+import { getBaseUrl } from "@/lib/base-url";
+
+const OG_WIDTH = 1200;
+const OG_HEIGHT = 630;
+
+const geistRegular = fetch(
+  new URL(
+    "https://cdn.jsdelivr.net/fontsource/fonts/geist-sans@latest/latin-400-normal.woff"
+  )
+).then((res) => res.arrayBuffer());
+
+const XmcpLogo = () => (
+  <svg
+    width="84"
+    height="32"
+    viewBox="0 0 63 24"
+    fill="none"
+    xmlns="http://www.w3.org/2000/svg"
+  >
+    <path
+      fillRule="evenodd"
+      clipRule="evenodd"
+      d="M52.5 18.1313V18.9556H58.5116V18.1313H56.794V14.2731H57.6526V15.1333H59.3703V15.9934H60.229V15.1333H61.9469V14.2731H62.8055V7.39184H61.9469V5.67147H61.0877V4.81129H59.3703V3.95117H57.6526V4.81129H55.9353V5.67147H55.0763V6.53165H52.5V7.39184H53.3587V18.1313H52.5ZM57.6526 14.2731V13.4129H56.794V5.67147H57.6526V6.53165H58.5116V7.39184H59.3703V14.2731H57.6526Z"
+      fill="#F7F7F7"
+    />
+    <path
+      fillRule="evenodd"
+      clipRule="evenodd"
+      d="M46.3668 16.9969H47.3703V15.9934H48.3739V14.9899H50.3809V15.9934H49.3775V16.9969H48.3739V18.0005H47.3703V19.004H44.3598V18.0005H42.3526V16.9969H41.3493V9.97232H40.3457V8.96879H41.3493V7.96527H42.3526V6.96175H43.3562V5.95822H45.3634V4.9547H47.3703V3.95117H48.3739V4.9547H49.3775V5.95822H50.3809V6.96175H51.3845V7.96527H50.3809V10.9758H49.3775V9.97232H48.3739V8.96879H47.3703V7.96527H46.3668V6.96175H45.3634V15.9934H46.3668V16.9969ZM50.3809 14.9899V13.9864H51.3845V14.9899H50.3809Z"
+      fill="#F7F7F7"
+    />
+    <path
+      fillRule="evenodd"
+      clipRule="evenodd"
+      d="M36.0598 3.95117V4.9547H35.0562V5.95822H34.0529V6.96175H32.0457V5.95822H31.0423V4.9547H30.0388V3.95117H29.0352V4.9547H28.0316V5.95822H27.0282V6.96175H25.021V5.95822H24.0175V4.9547H23.0141V3.95117H22.0105V4.9547H21.0069V5.95822H19V6.96175H21.0069V16.9969H20.0033V18.0005H22.0105V19.004H24.0175V18.0005H26.0246V16.9969H25.021V7.96527H27.0282V6.96175H28.0316V16.9969H27.0282V18.0005H29.0352V19.004H31.0423V18.0005H33.0493V16.9969H32.0457V7.96527H34.0529V6.96175H35.0562V16.9969H34.0529V18.0005H36.0598V19.004H38.067V18.0005H40.0739V16.9969H39.0703V7.96527H40.0739V6.96175H39.0703V5.95822H38.067V4.9547H37.0634V3.95117H36.0598Z"
+      fill="#F7F7F7"
+    />
+    <path
+      d="M0 5H1.00213V6H0V5ZM1.00213 22V19H2.00426V18H3.0064V17H5.01066V16H6.01279V15H7.01492V17H9.01919V18H10.0213V19H11.0235V20H10.0213V21H9.01919V22H8.01706V21H7.01492V20H5.01066V21H4.00853V23H5.01066V24H3.0064V23H2.00426V22H1.00213ZM1.00213 5V3H2.00426V2H3.0064V1H7.01492V2H9.01919V3H10.0213V5H11.0235V6H12.0256V7H13.0277V8H12.0256V9H17.0362V10H16.0341V11H14.0298V13H15.032V14H16.0341V15H17.0362V17H18.0384V18H19.0405V19H17.0362V20H16.0341V21H15.032V20H14.0298V18H13.0277V16H12.0256V15H11.0235V13H9.01919V12H2.00426V11H3.0064V10H4.00853V9H8.01706V8H7.01492V6H6.01279V4H5.01066V3H4.00853V4H2.00426V5H1.00213ZM7.01492 15V14H8.01706V15H7.01492ZM8.01706 14V13H9.01919V14H8.01706ZM11.0235 19V18H12.0256V19H11.0235ZM11.0235 5V4H12.0256V5H11.0235ZM12.0256 4V3H13.0277V1H15.032V2H17.0362V1H19.0405V4H18.0384V5H16.0341V6H15.032V5H14.0298V7H13.0277V4H12.0256ZM19.0405 18V17H20.0426V18H19.0405ZM19.0405 1V0H20.0426V1H19.0405Z"
+      fill="#F7F7F7"
+    />
+  </svg>
+);
+
+interface OgContent {
+  readonly title: string;
+  readonly description: string;
+  readonly summary: string | undefined;
+  readonly date: string | undefined;
+}
+
+type ResolveResult =
+  | { readonly ok: true; readonly content: OgContent }
+  | { readonly ok: false; readonly response: Response };
+
+function resolveOgContent(
+  type: string,
+  rest: string[],
+  baseUrl: string
+): ResolveResult {
+  switch (type) {
+    case "blog": {
+      const slug = rest.join("/");
+      if (!slug) {
+        return {
+          ok: true,
+          content: {
+            title: "Blog - xmcp",
+            description: "Latest updates, guides, and insights about xmcp.",
+            summary: undefined,
+            date: undefined,
+          },
+        };
+      }
+
+      const meta = getBlogMetadata(slug, baseUrl);
+      if (!meta) {
+        return {
+          ok: false,
+          response: new Response("Blog post not found", { status: 404 }),
+        };
+      }
+
+      return {
+        ok: true,
+        content: {
+          title: meta.title,
+          description: meta.description,
+          summary: meta.summary,
+          date: meta.date,
+        },
+      };
+    }
+
+    case "docs": {
+      const slug = rest.length === 0 ? undefined : rest;
+      if (!slug) {
+        return {
+          ok: true,
+          content: {
+            title: "xmcp Documentation",
+            description: "The framework for building & shipping MCP servers.",
+            summary: undefined,
+            date: undefined,
+          },
+        };
+      }
+
+      const meta = getDocsMetadata(slug, baseUrl);
+      if (!meta) {
+        return {
+          ok: false,
+          response: new Response("Documentation page not found", {
+            status: 404,
+          }),
+        };
+      }
+
+      return {
+        ok: true,
+        content: {
+          title: meta.title,
+          description: meta.description,
+          summary: meta.summary,
+          date: undefined,
+        },
+      };
+    }
+
+    case "examples": {
+      return {
+        ok: true,
+        content: {
+          title: "Shaping the future of MCP tooling",
+          description:
+            "xmcp now supports building compatible UI resources and tools with the OpenAI Apps SDK, out of the box.",
+          summary: undefined,
+          date: "2025-12-11",
+        },
+      };
+    }
+
+    default:
+      return {
+        ok: false,
+        response: new Response("Invalid content type", { status: 400 }),
+      };
+  }
+}
+
+export async function GET(
+  _request: NextRequest,
+  props: { params: Promise<{ path: string[] }> }
+): Promise<Response> {
+  try {
+    const params = await props.params;
+    const path = Array.isArray(params.path) ? params.path : [params.path];
+
+    if (path.length === 0) {
+      return new Response("Invalid path", { status: 400 });
+    }
+
+    const [type, ...rest] = path;
+    const baseUrl = getBaseUrl();
+
+    const result = resolveOgContent(type, rest, baseUrl);
+    if (!result.ok) {
+      return result.response;
+    }
+
+    const { title, description, summary, date } = result.content;
+
+    return new ImageResponse(
+      <div
+        tw={`h-[${OG_HEIGHT}px] w-[${OG_WIDTH}px] flex bg-black relative overflow-hidden`}
+        style={{
+          padding: "64px",
+          boxShadow: "0 0 250px 8px rgba(0, 0, 0, 0.80) inset",
+        }}
+      >
+        {/* Background image */}
+        <img
+          src={`${baseUrl}/og/bg.png`}
+          alt="Background"
+          width={OG_WIDTH}
+          height={OG_HEIGHT}
+          tw={`absolute top-0 left-0 w-[${OG_WIDTH}px] h-[${OG_HEIGHT}px] object-cover`}
+          style={{ mixBlendMode: "plus-lighter" }}
+        />
+        {/* Noise overlay */}
+        <img
+          src={`${baseUrl}/og/noise.png`}
+          alt="Noise"
+          width={OG_WIDTH}
+          height={OG_HEIGHT}
+          tw={`absolute top-0 left-0 w-[${OG_WIDTH}px] h-[${OG_HEIGHT}px] object-cover opacity-40`}
+          style={{ mixBlendMode: "overlay" }}
+        />
+        {/* Logo - top right */}
+        <div
+          style={{
+            position: "absolute",
+            top: "64px",
+            right: "64px",
+            display: "flex",
+          }}
+        >
+          <XmcpLogo />
+        </div>
+        {/* Date tag - top left */}
+        {date && (
+          <div
+            style={{
+              position: "absolute",
+              top: "64px",
+              left: "64px",
+              display: "flex",
+              alignItems: "center",
+              padding: "4px 8px",
+              border: "1px dashed #525252",
+              backgroundColor: "rgba(245, 245, 245, 0.07)",
+              color: "#A8A8A8",
+              fontFamily: "Geist",
+              fontStyle: "normal",
+              fontSize: "24px",
+              fontWeight: 500,
+              lineHeight: "100%",
+              letterSpacing: "1.92px",
+              textTransform: "uppercase",
+            }}
+          >
+            {formatDate(date)}
+          </div>
+        )}
+        {/* Text content - bottom left */}
+        <div
+          style={{
+            position: "absolute",
+            bottom: "64px",
+            left: "64px",
+            right: "64px",
+            display: "flex",
+            flexDirection: "column",
+            alignItems: "flex-start",
+            justifyContent: "flex-end",
+          }}
+        >
+          <h1
+            style={{
+              display: "flex",
+              color: "white",
+              margin: 0,
+              marginBottom: "16px",
+              fontFamily: "Geist",
+              fontSize: "74px",
+              fontWeight: 400,
+              lineHeight: "110%",
+              letterSpacing: "-1.04px",
+              textShadow: "0 0 52px rgba(255, 255, 255, 0.60)",
+              textWrap: "balance",
+            }}
+          >
+            {title}
+          </h1>
+          {(summary || description) && (
+            <p
+              key={summary ?? description}
+              style={{
+                display: "flex",
+                margin: 0,
+                fontFamily: "Geist",
+                fontSize: "32px",
+                fontWeight: 400,
+                color: "#A8A8A8",
+                lineHeight: "120%",
+                letterSpacing: "0.26px",
+                textShadow: "0 0 40px rgba(0, 0, 0, 0.50)",
+                textWrap: "balance",
+              }}
+            >
+              {summary ?? description}
+            </p>
+          )}
+        </div>
+      </div>,
+      {
+        width: OG_WIDTH,
+        height: OG_HEIGHT,
+        fonts: [
+          {
+            name: "Geist",
+            data: await geistRegular,
+            style: "normal",
+            weight: 400,
+          },
+        ],
+      }
+    );
+  } catch (error) {
+    console.error("Error generating OG image:", error);
+    return new Response("Error generating image", { status: 500 });
+  }
+}

apps/website/app/blog/[...slug]/page.tsx

@@ -6,6 +6,8 @@ import type { Metadata } from "next";
 import { createRelativeLink } from "fumadocs-ui/mdx";
 import { CodeBlock } from "@/components/codeblock";
 import { BlogPage } from "@/components/layout/blog";
+import { getBlogMetadata } from "@/utils/blog";
+import { getBaseUrl } from "@/lib/base-url";
 
 export default async function Page(props: PageProps<"/blog/[...slug]">) {
   const params = await props.params;
@@ -43,14 +45,37 @@ export async function generateMetadata(
   props: PageProps<"/blog/[...slug]">
 ): Promise<Metadata> {
   const params = await props.params;
-  const page = blogSource.getPage(params.slug);
-  if (!page) notFound();
+  const slug = Array.isArray(params.slug) ? params.slug.join("/") : params.slug;
+  const baseUrl = getBaseUrl();
+  const meta = getBlogMetadata(slug, baseUrl);
+  if (!meta) notFound();
+
+  const { title, description, ogImageUrl } = meta;
 
   return {
-    title: page.data.title + " | xmcp Blog",
-    description: page.data.description,
-    /*     openGraph: {
-      images: getPageImage(page).url,
-    }, */
+    title,
+    description,
+    openGraph: {
+      title,
+      description,
+      siteName: "xmcp",
+      type: "article",
+      locale: "en_US",
+      images: {
+        url: ogImageUrl,
+        width: 1200,
+        height: 630,
+      },
+    },
+    twitter: {
+      card: "summary_large_image",
+      title,
+      description,
+      images: {
+        url: ogImageUrl,
+        width: 1200,
+        height: 630,
+      },
+    },
   };
 }