chekc box to download questionnaire

pages/api/file/generatepdf.js

@@ -107,27 +107,31 @@ import { consoleLogger } from "../../../actions";
 // ApiProxy.post(async (req, res) => {
 
 export default async function handler(req, res) {
+    const shouldDownload = req.query.download === "true";
     var checkHash = req.query.hash;
-    let reqBodyobj = req.body; //JSON.parse(req.body);
+    let reqBodyobj =
+        typeof req.body === "string" ? JSON.parse(req.body) : req.body;
 
     const cleanFilesList = (blobList) => {
-        let newblobList = blobList.filesList;
+        let newblobList = Array.isArray(blobList?.filesList)
+            ? blobList.filesList
+            : [];
         function removeNullObjects(arr) {
-            if (arr.length === 0) {
+            if (!Array.isArray(arr) || arr.length === 0) {
                 return arr;
             }
             return arr.filter((obj) => obj !== null);
         }
 
         function removeObjectsWithUndefinedKey(arr, key) {
-            if (arr.length === 0) {
+            if (!Array.isArray(arr) || arr.length === 0) {
                 return arr;
             }
             return arr.filter((obj) => obj[key] !== undefined);
         }
 
         function removeEmptyObjects(arr) {
-            if (arr.length === 0) {
+            if (!Array.isArray(arr) || arr.length === 0) {
                 return arr;
             }
             return arr.filter(
@@ -149,7 +153,7 @@ export default async function handler(req, res) {
         return blobList;
     };
 
-    reqBodyobj = reqBodyobj.hasOwnProperty("filesList")
+    reqBodyobj = reqBodyobj?.hasOwnProperty("filesList")
         ? cleanFilesList(reqBodyobj)
         : reqBodyobj;
 
@@ -296,12 +300,26 @@ export default async function handler(req, res) {
     //     process.cwd() + `/tmp/${reqBodyobj.repfile_name}.pdf`
     // );
 
-    const renderedPDF = await ReactPDF.renderToStream(
+    const streamToBuffer = async (readableStream) => {
+        return new Promise((resolve, reject) => {
+            const chunks = [];
+            readableStream.on("data", (chunk) => {
+                chunks.push(
+                    Buffer.isBuffer(chunk) ? chunk : Buffer.from(chunk)
+                );
+            });
+            readableStream.on("end", () => resolve(Buffer.concat(chunks)));
+            readableStream.on("error", reject);
+        });
+    };
+
+    const renderedPDFStream = await ReactPDF.renderToStream(
         <MyDocument docProps={reqBodyobj} />
     );
+    const renderedPDFBuffer = await streamToBuffer(renderedPDFStream);
 
     await createRepPDFBlob(
-        renderedPDF,
+        renderedPDFBuffer,
         containerID,
         caseRef,
         reqBodyobj.repfile_name
@@ -312,6 +330,16 @@ export default async function handler(req, res) {
                     `${caseRef}/files/${reqBodyobj.repfile_name}.pdf`,
                 "\n/////////////////////////"
             );
+            if (shouldDownload) {
+                const filename = `${reqBodyobj.repfile_name || "questionnaire"}.pdf`;
+                res.setHeader("Content-Type", "application/pdf");
+                res.setHeader(
+                    "Content-Disposition",
+                    `attachment; filename="${filename}"`
+                );
+                return res.status(200).send(renderedPDFBuffer);
+            }
+
             return res.status(200).json({
                 status: "success",
                 data: data,