Add URL→PDF endpoint, usage tracking middleware, free tier limits

src/routes/convert.ts

@@ -1,5 +1,5 @@
 import { Router, Request, Response } from "express";
-import { renderPdf } from "../services/browser.js";
+import { renderPdf, renderUrlPdf } from "../services/browser.js";
 import { markdownToHtml, wrapHtml } from "../services/markdown.js";
 
 export const convertRouter = Router();
@@ -76,3 +76,43 @@ convertRouter.post("/markdown", async (req: Request, res: Response) => {
     res.status(500).json({ error: "PDF generation failed", detail: err.message });
   }
 });
+
+// POST /v1/convert/url
+convertRouter.post("/url", async (req: Request, res: Response) => {
+  try {
+    const body = req.body as { url?: string; format?: string; landscape?: boolean; margin?: any; printBackground?: boolean; waitUntil?: string; filename?: string };
+
+    if (!body.url) {
+      res.status(400).json({ error: "Missing 'url' field" });
+      return;
+    }
+
+    // Basic URL validation
+    try {
+      const parsed = new URL(body.url);
+      if (!["http:", "https:"].includes(parsed.protocol)) {
+        res.status(400).json({ error: "Only http/https URLs are supported" });
+        return;
+      }
+    } catch {
+      res.status(400).json({ error: "Invalid URL" });
+      return;
+    }
+
+    const pdf = await renderUrlPdf(body.url, {
+      format: body.format,
+      landscape: body.landscape,
+      margin: body.margin,
+      printBackground: body.printBackground,
+      waitUntil: body.waitUntil,
+    });
+
+    const filename = body.filename || "page.pdf";
+    res.setHeader("Content-Type", "application/pdf");
+    res.setHeader("Content-Disposition", `inline; filename="${filename}"`);
+    res.send(pdf);
+  } catch (err: any) {
+    console.error("Convert URL error:", err);
+    res.status(500).json({ error: "PDF generation failed", detail: err.message });
+  }
+});