Added logger util and used in place of console log

src/utils/logger.js

@@ -0,0 +1,36 @@
+const config = require('../config.js');
+
+const levels = {
+  ERROR: "ERROR",
+  WARN: "WARN",
+  INFO: "INFO",
+  DEBUG: "DEBUG"
+};
+
+const settings = {
+  ERROR: true,
+  WARN: true,
+  INFO: false,
+  DEBUG: false
+};
+
+if (config.mode === 'development') {
+  settings.INFO = true;
+  settings.DEBUG = true;
+}
+
+function log(level, string) {
+  if (!!settings[level]) {
+    if (level.length === 4) {level = level + " "}; // ensure logs are aligned
+    console.log(level + " " + new Date().toISOString() + " : " + string);
+  }
+}
+
+module.exports = {
+  levels,
+  log,
+  error: (string) => {log(levels.ERROR, string)},
+  warn: (string) => {log(levels.WARN, string)},
+  info: (string) => {log(levels.INFO, string)},
+  debug: (string) => {log(levels.DEBUG, string)},
+};