beautify logs

Author: neSpecc

src/metrics/mongodb.ts

@@ -1,5 +1,6 @@
 import promClient from 'prom-client';
 import { MongoClient, MongoClientOptions } from 'mongodb';
+import { Effect, sgr } from '../utils/ansi';
 
 /**
  * MongoDB command duration histogram
@@ -137,16 +138,17 @@ function formatParams(params: any): string {
  */
 function logCommandStarted(event: any): void {
   const collectionRaw = extractCollectionFromCommand(event.command, event.commandName);
-  const collection = normalizeCollectionName(collectionRaw);
+  const collection = sgr(normalizeCollectionName(collectionRaw), Effect.ForegroundGreen);
   const db = event.databaseName || 'unknown db';
+  const commandName = sgr(event.commandName, Effect.ForegroundRed);
   const filter = event.command.filter;
   const update = event.command.update;
   const pipeline = event.command.pipeline;
   const projection = event.command.projection;
   const params = filter || update || pipeline;
   const paramsStr = formatParams(params);
 
-  console.log(`[${event.requestId}] ${db}.${collection}.${event.commandName}(${paramsStr}) ${projection ? `projection: ${formatParams(projection)}` : ''}`);
+  console.log(`[${event.requestId}] ${db}.${collection}.${commandName}(${paramsStr}) ${projection ? `projection: ${formatParams(projection)}` : ''}`);
 }
 
 /**

src/utils/ansi.ts

@@ -0,0 +1,44 @@
+/**
+ * ANSI escape codes for text formatting
+ */
+export enum Effect {
+  Reset = '\x1b[0m',
+  Bold = '\x1b[1m',
+  Underline = '\x1b[4m',
+  CrossedOut = '\x1b[9m',
+  BoldOff = '\x1b[22m',
+  UnderlineOff = '\x1b[24m',
+  CrossedOutOff = '\x1b[29m',
+  ForegroundRed = '\x1b[31m',
+  ForegroundGreen = '\x1b[32m',
+  ForegroundYellow = '\x1b[33m',
+  ForegroundBlue = '\x1b[34m',
+  ForegroundMagenta = '\x1b[35m',
+  ForegroundCyan = '\x1b[36m',
+  ForegroundWhite = '\x1b[37m',
+  ForegroundGray = '\x1b[90m',
+  BackgroundRed = '\x1b[41m',
+  BackgroundGreen = '\x1b[42m',
+  BackgroundYellow = '\x1b[43m',
+  BackgroundBlue = '\x1b[44m',
+  BackgroundMagenta = '\x1b[45m',
+  BackgroundCyan = '\x1b[46m',
+  BackgroundWhite = '\x1b[47m',
+  BackgroundGray = '\x1b[100m',
+};
+
+/**
+ * ANSI escape code for setting visual effects using SGR (Select Graphic Rendition) subset
+ *
+ * @example console.log('Hello, ${sgr('world', Effect.ForegroundRed)}');
+ *
+ *
+ * @param message - The message to colorize
+ * @param color - The color to apply
+ * @returns The colored message
+ */
+export function sgr(message: string, color: Effect | Effect[]): string {
+  const colorCode = Array.isArray(color) ? color.join('') : color ?? Effect.Reset;
+
+  return `${colorCode}${message}${Effect.Reset}`;
+}

src/utils/logger.ts

@@ -1,5 +1,6 @@
 import morgan from 'morgan';
 import express from 'express';
+import { sgr, Effect } from './ansi';
 
 /**
  * Setup custom GraphQL-aware morgan token.
@@ -14,7 +15,7 @@ morgan.token('graphql-operation', (req: express.Request) => {
     const match = req.body.query.match(/(?:query|mutation)\s+(\w+)/);
 
     if (match && match[1]) {
-      return match[1];
+      return sgr(sgr(match[1], Effect.ForegroundMagenta), Effect.Bold);
     }
   }
 
@@ -27,8 +28,8 @@ morgan.token('graphql-operation', (req: express.Request) => {
  * Production: Apache-style format with operation name included
  */
 const customFormat = process.env.NODE_ENV === 'production'
-  ? ':remote-addr - :remote-user [:date[clf]] ":method :url :graphql-operation" :status :res[content-length] - :response-time ms'
-  : ':method :url :graphql-operation :status :response-time ms - :res[content-length]';
+  ? ':remote-addr - :remote-user [:date[clf]] ":method :url :graphql-operation" :status :res[content-length] bytes - :response-time ms'
+  : ':method :url :graphql-operation :status :res[content-length] bytes - :response-time ms';
 
 /**
  * Configured morgan middleware with GraphQL operation name logging

src/utils/utils.js

@@ -1,31 +1,5 @@
 const _ = require('lodash');
 
-module.exports.deepMerge = deepMerge;
-/**
- * Merge to objects recursively
- * @param {object} target
- * @param {object[]} sources
- * @return {object}
- */
-function deepMerge(target, ...sources) {
-  const isObject = (item) => item && typeOf(item) === 'object';
-
-  return _.mergeWith({}, target, ...sources, function (_subject, _target) {
-    if (_.isArray(_subject) && _.isArray(_target)) {
-      const biggerArray = _subject.length > _target.length ? _subject : _target;
-      const lesser = _subject.length > _target.length ? _target : _subject;
-
-      return biggerArray.map((el, i) => {
-        if (isObject(el) && isObject(lesser[i])) {
-          return _.mergeWith({}, el, lesser[i]);
-        } else {
-          return el;
-        }
-      });
-    }
-  });
-}
-
 /**
  * Returns real type of passed variable
  * @param obj