fix req interception

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@pablo/pablo-rest-api-standard",
-  "version": "0.0.7",
+  "version": "0.0.8",
   "description": "Pablo Rest API Standard Library",
   "main": "lib/index.js",
   "scripts": {

src/index.ts

@@ -26,20 +26,20 @@ interface PRASResponse extends Response {
 
 export class PRAS {
   private getPRASResultObject(
-    statusCode: number,
-    status: string,
-    message: string,
-    data: any,
-    code: string,
-    extra: any
+    statusCode = 200,
+    status = "OK",
+    message = "",
+    data = null,
+    code = "UNKNOWN_CODE",
+    extra = null
   ) {
     return {
-      statusCode: statusCode || 200,
-      status: status || "OK",
-      message: message || "",
-      data: data || null,
-      code: code || "UNKNOWN_CODE",
-      extra: extra || null,
+      statusCode,
+      status,
+      message,
+      data,
+      code,
+      extra,
     };
   }
 
@@ -103,30 +103,38 @@ export class PRAS {
         },
       };
 
-      const originalSend = res.send;
-      res.send = (body) => {
-        if (typeof body === "string") {
-          body = JSON.parse(body);
-        }
-        if (typeof body === "string") {
-          body = { data: body };
-        } else if (!body.hasOwnProperty("data")) {
-          body = { data: body };
-        }
-
-        const prasBody = this.getPRASResultObject(
-          body.statusCode,
-          body.status,
-          body.message,
-          body.data,
-          body.code,
-          body.extra
-        );
-        res.status(Number(prasBody.statusCode) || 200);
-        delete prasBody.statusCode;
-
-        return originalSend.call(res, JSON.stringify(prasBody));
-      };
+      const rawHeaders = req.rawHeaders;
+      if (
+        rawHeaders.hasOwnProperty("Accept") &&
+        /application\/json/.test(rawHeaders.Accept)
+      ) {
+        const send = res.send;
+        res.send = (body) => {
+          try {
+            if (typeof body === "string") {
+              body = JSON.parse(body);
+            }
+            if (typeof body === "string") {
+              body = { data: body };
+            } else if (!body.hasOwnProperty("data")) {
+              body = { data: body };
+            }
+            const prasBody = this.getPRASResultObject(
+              body.statusCode,
+              body.status,
+              body.message,
+              body.data,
+              body.code,
+              body.extra
+            );
+            res.status(prasBody.statusCode || 200);
+            delete prasBody.statusCode;
+            return send.call(res, JSON.stringify(prasBody));
+          } catch (err) {
+            return send.call(res, body);
+          }
+        };
+      }
 
       next();
     };