initial commit

.gitignore

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+# ---> Node
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+lerna-debug.log*
+.pnpm-debug.log*
+
+# Diagnostic reports (https://nodejs.org/api/report.html)
+report.[0-9]*.[0-9]*.[0-9]*.[0-9]*.json
+
+# Runtime data
+pids
+*.pid
+*.seed
+*.pid.lock
+
+# Directory for instrumented libs generated by jscoverage/JSCover
+lib-cov
+
+# Coverage directory used by tools like istanbul
+coverage
+*.lcov
+
+# nyc test coverage
+.nyc_output
+
+# Grunt intermediate storage (https://gruntjs.com/creating-plugins#storing-task-files)
+.grunt
+
+# Bower dependency directory (https://bower.io/)
+bower_components
+
+# node-waf configuration
+.lock-wscript
+
+# Compiled binary addons (https://nodejs.org/api/addons.html)
+build/Release
+
+# Dependency directories
+node_modules/
+jspm_packages/
+
+# Snowpack dependency directory (https://snowpack.dev/)
+web_modules/
+
+# TypeScript cache
+*.tsbuildinfo
+
+# Optional npm cache directory
+.npm
+
+# Optional eslint cache
+.eslintcache
+
+# Optional stylelint cache
+.stylelintcache
+
+# Microbundle cache
+.rpt2_cache/
+.rts2_cache_cjs/
+.rts2_cache_es/
+.rts2_cache_umd/
+
+# Optional REPL history
+.node_repl_history
+
+# Output of 'npm pack'
+*.tgz
+
+# Yarn Integrity file
+.yarn-integrity
+
+# dotenv environment variable files
+.env
+.env.development.local
+.env.test.local
+.env.production.local
+.env.local
+
+# parcel-bundler cache (https://parceljs.org/)
+.cache
+.parcel-cache
+
+# Next.js build output
+.next
+out
+
+# Nuxt.js build / generate output
+.nuxt
+dist
+
+# Gatsby files
+.cache/
+# Comment in the public line in if your project uses Gatsby and not Next.js
+# https://nextjs.org/blog/next-9-1#public-directory-support
+# public
+
+# vuepress build output
+.vuepress/dist
+
+# vuepress v2.x temp and cache directory
+.temp
+.cache
+
+# Docusaurus cache and generated files
+.docusaurus
+
+# Serverless directories
+.serverless/
+
+# FuseBox cache
+.fusebox/
+
+# DynamoDB Local files
+.dynamodb/
+
+# TernJS port file
+.tern-port
+
+# Stores VSCode versions used for testing VSCode extensions
+.vscode-test
+
+# yarn v2
+.yarn/cache
+.yarn/unplugged
+.yarn/build-state.yml
+.yarn/install-state.gz
+.pnp.*
+
+files/
+temp/
+config.json

README.md

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+# weird-express-logger
+
+weird express logger

index.js

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+const colorStatusCode = (n) => {
+	if (n >= 500) {
+		return `\x1b[91m${n}`;
+	} else if (n >= 400) {
+		return `\x1b[93m${n}`;
+	} else if (n >= 300) {
+		return `\x1b[33m${n}`;
+	} else if (n >= 200) {
+		return `\x1b[92m${n}`;
+	} else {
+		return n.toString();
+	}
+};
+
+const pretty_µs = (n) => {
+	let f = [];
+	if (n >= 3600000000) f.push(Math.floor(n / 3000600000) + "h");
+	if (n % 3600000000 >= 60000000)
+		f.push(Math.floor((n % 3600000000) / 60000000) + "m");
+	if (n % 60000000 >= 1000000)
+		f.push(Math.floor((n % 60000000) / 1000000) + "s");
+	if (n % 1000000 >= 1000) f.push(Math.floor((n % 1000000) / 1000) + "ms");
+	if (n % 1000) f.push(Math.floor(n % 1000) + "µs");
+	return f.join(" ");
+};
+
+/**
+ * @typedef {Object} Logging private type to adosjhgadklrf
+ * @property {number} ts
+ * @property {include('express').Request} req
+ * @property {function(include('express').Response): void} callback
+ * @property {boolean} resolved
+ */
+
+/**
+ * @typedef {Object?} Options
+ * @property {boolean} [tty=true]
+ * @property {boolean} [logIp=true]
+ * @property {NodeJS.WriteStream} [output=process.stderr]
+ */
+
+/**
+ * @param {Options} options
+ * @returns {function(include('express').Request, include('express').Response, include('express').NextFunction): void}
+ */
+const logRequest = (options) => {
+	options = options ?? {};
+	options.tty = options.tty ?? true;
+	options.logIp = options.logIp ?? true;
+	options.output = options.output ?? process.stderr;
+
+	const out = options.output ?? process.stderr;
+	const IS_TTY = options.tty && out.isTTY;
+	if (IS_TTY) {
+		out.cursorTo(0, out.getWindowSize()[1]);
+	}
+
+	/** @type {Logging[]} */
+	const loggingRequests = [];
+	let minLength = 12; // NOOO MAGIC NUMBERINO
+
+	/**
+	 * @param {Logging} log
+	 */
+	function processLog(log) {
+		loggingRequests.push(log);
+		let time = (log.ts / 1000).toFixed(6);
+
+		if (IS_TTY) {
+			out.cursorTo(0, out.getWindowSize()[1]);
+			if (time.length < minLength) time = time.padStart(minLength, " ");
+			let statusOffset =
+				time.length + 3 + (options.logIp ? log.req.ip.length + 3 : 0); // from start
+			let timeOffset = log.req.method.length + log.req.url.length + 3; // from end of status
+			out.write(
+				`\x1b[32m[${time}]\x1b[0m ${
+					options.logIp ? "(" + log.req.ip + ") " : ""
+				}\x1b[90m...\x1b[0m \x1b[1m${log.req.method}\x1b[0m ${
+					log.req.url
+				}\n`
+			);
+			log.callback = (res) => {
+				let idx = loggingRequests.findIndex((x) => x === log);
+				if (idx === -1) return;
+				loggingRequests.splice(idx, 1);
+
+				let line =
+					out.getWindowSize()[1] - loggingRequests.length + idx - 2;
+				if (line < 0) return;
+				out.cursorTo(statusOffset, line);
+				out.write(
+					"\x1b[0m\x1b[1m" +
+						colorStatusCode(res.statusCode) +
+						"\x1b[0m"
+				);
+				out.moveCursor(timeOffset, 0);
+				out.write(
+					`\x1b[90m(${pretty_µs(
+						(performance.now() - log.ts) * 1000
+					)})\x1b[0m`
+				);
+				out.cursorTo(0, out.getWindowSize()[1]);
+			};
+		} else {
+			log.callback = (res) => {
+				out.write(
+					`[${time}] ${options.logIp ? "(" + log.req.ip + ") " : ""}${
+						res.statusCode
+					} ${log.req.method} ${log.req.url} (${pretty_µs(
+						(performance.now() - log.ts) * 1000
+					)})\n`
+				);
+			};
+		}
+	}
+
+	return (req, res, next) => {
+		let ts = performance.now();
+		/** @type {Logging} */
+		let log = {
+			ts,
+			req,
+		};
+		let end = res.end;
+		res.end = (...args) => {
+			end.call(res, ...args);
+			log.resolved = true;
+			if (log.callback instanceof Function) log.callback(res);
+		};
+		processLog(log);
+		next();
+	};
+};
+
+export default logRequest;

package-lock.json

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+{
+  "name": "weird-express-logger",
+  "version": "1.0.0",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "name": "weird-express-logger",
+      "version": "1.0.0",
+      "license": "CC0-1.0"
+    }
+  }
+}

package.json

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+{
+  "name": "weird-express-logger",
+  "version": "1.0.0",
+  "description": "weird express logger",
+  "main": "index.js",
+  "type": "module",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "keywords": [],
+  "author": "slonkazoid",
+  "license": "CC0-1.0"
+}