feat(image-service): standalone processor

apps/image-service/src/index.ts

@@ -0,0 +1,80 @@
+import Fastify from "fastify";
+import { processImageWithSmartCrop } from "@mintel/image-processor";
+
+const fastify = Fastify({
+  logger: true,
+});
+
+fastify.get("/unsafe/:options/:urlSafeB64", async (request, reply) => {
+  // Compatibility endpoint for old imgproxy calls (optional, but requested by some systems sometimes)
+  // For now, replacing logic in clients is preferred. So we just redirect or error.
+  return reply
+    .status(400)
+    .send({ error: "Legacy imgproxy API not supported. Use /process" });
+});
+
+fastify.get("/process", async (request, reply) => {
+  const query = request.query as {
+    url?: string;
+    w?: string;
+    h?: string;
+    q?: string;
+    format?: string;
+  };
+
+  const { url } = query;
+  const width = parseInt(query.w || "800", 10);
+  const height = parseInt(query.h || "600", 10);
+  const quality = parseInt(query.q || "80", 10);
+  const format = (query.format || "webp") as "webp" | "jpeg" | "png" | "avif";
+
+  if (!url) {
+    return reply.status(400).send({ error: 'Parameter "url" is required' });
+  }
+
+  try {
+    const response = await fetch(url);
+    if (!response.ok) {
+      return reply
+        .status(response.status)
+        .send({
+          error: `Failed to fetch source image: ${response.statusText}`,
+        });
+    }
+
+    const arrayBuffer = await response.arrayBuffer();
+    const buffer = Buffer.from(arrayBuffer);
+
+    const processedBuffer = await processImageWithSmartCrop(buffer, {
+      width,
+      height,
+      format,
+      quality,
+    });
+
+    reply.header("Content-Type", `image/${format}`);
+    reply.header("Cache-Control", "public, max-age=31536000, immutable");
+    return reply.send(processedBuffer);
+  } catch (err) {
+    fastify.log.error(err);
+    return reply
+      .status(500)
+      .send({ error: "Internal Server Error processing image" });
+  }
+});
+
+fastify.get("/health", async () => {
+  return { status: "ok" };
+});
+
+const start = async () => {
+  try {
+    await fastify.listen({ port: 8080, host: "0.0.0.0" });
+    console.log(`Server listening on 8080`);
+  } catch (err) {
+    fastify.log.error(err);
+    process.exit(1);
+  }
+};
+
+start();