Elmah added, but commented.

Logger now logs whole object not only part of it.

package-lock.json

         "bcryptjs": "^2.4.3",
         "config": "^3.3.7",
         "cors": "^2.8.5",
+        "elmah.io.javascript": "^3.7.0",
         "express": "^4.18.1",
         "express-jwt": "^7.7.2",
         "helmet": "^5.1.0",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
+    "node_modules/elmah.io.javascript": {
+      "version": "3.7.0",
+      "resolved": "https://registry.npmjs.org/elmah.io.javascript/-/elmah.io.javascript-3.7.0.tgz",
+      "integrity": "sha512-s7yyLo8tlZPURYxsT4tS977FfEXXaMzkbxZNLVRc90v949NgdfeJYLYyYe6c5fhcQkiIPsy3TgOCErSpaJWGvw=="
+    },
     "node_modules/emoji-regex": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
       "resolved": "https://registry.npmjs.org/ee-first/-/ee-first-1.1.1.tgz",
       "integrity": "sha1-WQxhFWsK4vTwJVcyoViyZrxWsh0="
     },
+    "elmah.io.javascript": {
+      "version": "3.7.0",
+      "resolved": "https://registry.npmjs.org/elmah.io.javascript/-/elmah.io.javascript-3.7.0.tgz",
+      "integrity": "sha512-s7yyLo8tlZPURYxsT4tS977FfEXXaMzkbxZNLVRc90v949NgdfeJYLYyYe6c5fhcQkiIPsy3TgOCErSpaJWGvw=="
+    },
     "emoji-regex": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",

package.json

     "bcryptjs": "^2.4.3",
     "config": "^3.3.7",
     "cors": "^2.8.5",
+    "elmah.io.javascript": "^3.7.0",
     "express": "^4.18.1",
     "express-jwt": "^7.7.2",
     "helmet": "^5.1.0",

src/endpoints/user.js

         const allUsers = await User.find({})
         return res.status(200).send(allUsers)
     } catch (e) {
+        // TODO: Jel i ovde treba next(e)?
         return res.status(500).send('Internal server error!')
     }
 }

src/logging/logger.js

-const winston = require('winston');
-
-const logger = winston.createLogger({
-    level: 'info',
-    format: winston.format.json(),
-    defaultMeta: { service: 'user-service' },
-    transports: [
-        //
-        // - Write all logs with importance level of `error` or less to `error.log`
-        // - Write all logs with importance level of `silly` or less to `all.log`
-        //
-        new winston.transports.File({ filename: 'loggerFiles/error.log', level: 'error' }),
-        new winston.transports.File({ filename: 'loggerFiles/all.log', level: 'silly' }),
-    ],
-});
-
-//
-// If we're not in production then log to the `console` with the format:
-// `${info.level}: ${info.message} JSON.stringify({ ...rest }) `
-//
-if (process.env.NODE_ENV !== 'production') {
-    logger.add(new winston.transports.Console({
-        format: winston.format.simple(),
-    }));
-}
-
-module.exports = logger

src/logging/loggerElmah.js

+// const Elmahio = require("elmah.io.javascript")
+//
+// // TODO: da li ovo treba u configu (appsettings.json) da bude ili moze ovde hardkodirano
+// const loggerElmah = new Elmahio({
+//     apiKey: 'API_KEY',
+//     logId: 'LOG_ID',
+//     application: 'diligent-node-api'
+// })
+//
+// module.exports = loggerElmah

src/logging/loggerWinston.js

+const winston = require('winston')
+const config = require('config')
+
+const loggerWinston = winston.createLogger({
+    level: 'info',
+    format: winston.format.json(),
+    defaultMeta: { service: 'user-service' },
+    transports: [
+        new winston.transports.File({ filename: 'loggerFiles/error.log', level: 'error' }),
+        new winston.transports.File({ filename: 'loggerFiles/all.log', level: 'silly' }),
+    ],
+});
+
+if (config.util.getEnv('NODE_ENV') !== 'production') {
+    loggerWinston.add(new winston.transports.Console({
+        format: winston.format.simple(),
+    }));
+}
+
+module.exports = loggerWinston

src/middleware/errorHandling.js

+//const loggerElmah = require('../logging/loggerElmah')
+const loggerWinston = require('../logging/loggerWinston')
+const config = require('config')
+
 const errorLogger = (err, req, res, next) => {
     console.error(err)
+
+    if (config.util.getEnv('NODE_ENV') === 'development')
+        loggerWinston.error(err)
+    // else
+    //     loggerElmah.error('There has been an error', err)
+
     next(err)
 }
 

src/middleware/requestLogging.js

-const logger = require("../logging/logger")
+const logger = require("../logging/loggerWinston")
 
 const requestLogging = async (req, res, next) => {
+
     res.header("Content-Type", 'application/json');
-    const reqData = JSON.stringify({
-        headers: req.headers,
-        method: req.method,
-        url: req.url,
-        httpVersion: req.httpVersion,
-        body: req.body,
-        cookies: req.cookies,
-        path: req.path,
-        protocol: req.protocol,
-        query: req.query,
-        hostname: req.hostname,
-        ip: req.ip,
-        originalUrl: req.originalUrl,
-        params: req.params,
-    })
 
-    logger.silly((JSON.stringify(reqData)))
+    // TODO: Da se vidi da li treba ceo objekat ili moze da se prebaci u string
+    // const reqData = JSON.stringify({
+    //     headers: req.headers,
+    //     method: req.method,
+    //     url: req.url,
+    //     httpVersion: req.httpVersion,
+    //     body: req.body,
+    //     cookies: req.cookies,
+    //     path: req.path,
+    //     protocol: req.protocol,
+    //     query: req.query,
+    //     hostname: req.hostname,
+    //     ip: req.ip,
+    //     originalUrl: req.originalUrl,
+    //     params: req.params,
+    // })
+    // logger.silly((JSON.stringify(reqData)))
+
+    logger.silly(req)
     next()
 }
 

src/server.js

 const helmet = require('helmet') //Basic protection against attacks like XSS
 const config = require('config') //Default configuration file
 
-//console.log(config.util.getEnv('NODE_ENV'))
+// console.log(config.util.getEnv('NODE_ENV'))
 
 const swaggerOptions = {
     swaggerDefinition: {