Added rawbody if needed

ref #22

src/middlewares/RawBody.ts

@@ -0,0 +1,27 @@
+import { Request, Response } from 'express';
+
+const RawBodyMiddleware = (req: Request, res: Response, next: () => void) => {
+    const body = []
+    req.on('data', chunk => {
+        body.push(chunk)
+    })
+    req.on('end', () => {
+        const rawBody = Buffer.concat(body)
+        req['rawBody'] = rawBody
+        /*
+        switch (req.header('content-type')) {
+            case 'application/json':
+                req.body = JSON.parse(rawBody.toString())
+                break
+            // add more body parsing if needs be
+            default:
+        }
+        */
+        next()
+    })
+    req.on('error', () => {
+        res.sendStatus(400)
+    })
+}
+
+export default RawBodyMiddleware