finalisation home page

server/api/instagram/oembed.post.js

@@ -0,0 +1,108 @@
+function isValidUrl(u) {
+  try {
+    new URL(u);
+    return true;
+  } catch {
+    return false;
+  }
+}
+
+function isInstagramPostUrl(u) {
+  try {
+    const url = new URL(u);
+    const host = url.hostname.replace(/^www\./, "");
+
+    if (host !== "instagram.com") return false;
+
+    const p = url.pathname;
+    return p.startsWith("/p/") || p.startsWith("/reel/") || p.startsWith("/tv/");
+  } catch {
+    return false;
+  }
+}
+
+export default defineCachedEventHandler(
+  async (event) => {
+    const config = useRuntimeConfig();
+
+    const appId = config.instagramAppId;
+    const clientToken = config.instagramClientToken;
+
+    if (!appId || !clientToken) {
+      throw createError({
+        statusCode: 500,
+        statusMessage:
+          "Missing Instagram oEmbed credentials (instagramAppId / instagramClientToken).",
+      });
+    }
+
+    const body = await readBody(event).catch(() => null);
+
+    if (!body || !Array.isArray(body.urls)) {
+      throw createError({
+        statusCode: 400,
+        statusMessage: "Invalid payload. Expected { urls: string[] }",
+      });
+    }
+
+    // normalise + filtre
+    const urls = body.urls
+      .map((u) => String(u).trim())
+      .filter((u) => isValidUrl(u))
+      .filter((u) => isInstagramPostUrl(u))
+      .slice(0, 24);
+
+    if (urls.length === 0) {
+      return { results: [] };
+    }
+
+    // Token Meta oEmbed: APP_ID|CLIENT_TOKEN
+    const accessToken = `${appId}|${clientToken}`;
+
+    const results = await Promise.all(
+      urls.map(async (url) => {
+        const endpoint = new URL(
+          "https://graph.facebook.com/v19.0/instagram_oembed"
+        );
+        endpoint.searchParams.set("url", url);
+        endpoint.searchParams.set("omitscript", "true");
+        endpoint.searchParams.set("access_token", accessToken);
+
+        try {
+          const data = await $fetch(endpoint.toString(), { timeout: 10000 });
+
+          return {
+            url,
+            ok: true,
+            html: data?.html || "",
+            title: data?.title ?? null,
+            author_name: data?.author_name ?? null,
+            thumbnail_url: data?.thumbnail_url ?? null,
+          };
+        } catch (e) {
+          return {
+            url,
+            ok: false,
+            error:
+              e?.data?.error?.message ||
+              e?.message ||
+              "Unknown oEmbed error",
+          };
+        }
+      })
+    );
+
+    return { results };
+  },
+  {
+    // cache 6h
+    maxAge: 60 * 60 * 6,
+
+    // clé de cache basée sur le payload (urls)
+    getKey: async (event) => {
+      const body = await readBody(event).catch(() => null);
+      const urls = Array.isArray(body?.urls) ? body.urls.join("|") : "none";
+      return `instagram:oembed:${urls}`;
+    },
+  }
+);