fix: Fixed wrong naming for error handler middleware

backend/src/middleware/requestErrorHandler.ts

@@ -0,0 +1,29 @@
+import { ErrorRequestHandler } from "express";
+
+import * as Sentry from '@sentry/node';
+import { InternalServerError } from "../utils/errors";
+import { getLogger } from "../utils/logger";
+import RequestError, { LogLevel } from "../utils/requestError";
+
+
+export const requestErrorHandler: ErrorRequestHandler = (error: RequestError|Error, req, res, next) => {
+    if(res.headersSent) return next();
+    //TODO: Find better way to type check for error. In current setting you need to cast type to get the functions and variables from RequestError
+    if(!(error instanceof RequestError)){
+        error = InternalServerError({context: {exception: error.message}, stack: error.stack})
+        getLogger('backend-main').log((<RequestError>error).levelName.toLowerCase(), (<RequestError>error).message)
+    }
+    
+    //* Set Sentry user identification if req.user is populated
+    if(req.user !== undefined && req.user !== null){
+        Sentry.setUser({ email: req.user.email })
+    }
+    //* Only sent error to Sentry if LogLevel is one of the following level 'ERROR', 'EMERGENCY' or 'CRITICAL'
+    //* with this we will eliminate false-positive errors like 'BadRequestError', 'UnauthorizedRequestError' and so on
+    if([LogLevel.ERROR, LogLevel.EMERGENCY, LogLevel.CRITICAL].includes((<RequestError>error).level)){
+        Sentry.captureException(error)
+    }
+    
+    res.status((<RequestError>error).statusCode).json((<RequestError>error).format(req))
+    next()
+}