diff --git a/Chapter13/async-stack-trace/example.js b/Chapter13/async-stack-trace/example.js
new file mode 100644
index 0000000..3e25ef4
--- /dev/null
+++ b/Chapter13/async-stack-trace/example.js
@@ -0,0 +1,13 @@
+foo().then(
+ () => console.log("success"),
+ (error) => console.error(error.stack)
+);
+
+async function foo() {
+ await bar();
+}
+
+async function bar() {
+ await Promise.resolve();
+ throw new Error("Fail");
+}
diff --git a/Chapter13/core-debug-logs/package-lock.json b/Chapter13/core-debug-logs/package-lock.json
new file mode 100644
index 0000000..f55c090
--- /dev/null
+++ b/Chapter13/core-debug-logs/package-lock.json
@@ -0,0 +1,374 @@
+{
+ "name": "core-debug-logs",
+ "version": "1.0.0",
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+ "mime-types": "~2.1.24",
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+ }
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diff --git a/Chapter13/core-debug-logs/package.json b/Chapter13/core-debug-logs/package.json
new file mode 100644
index 0000000..76b983a
--- /dev/null
+++ b/Chapter13/core-debug-logs/package.json
@@ -0,0 +1,15 @@
+{
+ "name": "core-debug-logs",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "dependencies": {
+ "express": "^4.17.1"
+ }
+}
diff --git a/Chapter13/core-debug-logs/server.js b/Chapter13/core-debug-logs/server.js
new file mode 100644
index 0000000..f133987
--- /dev/null
+++ b/Chapter13/core-debug-logs/server.js
@@ -0,0 +1,14 @@
+const express = require("express");
+const app = express();
+
+app.get("/", (req, res) => {
+ res.send("Hello World!");
+});
+
+app.listen(3000, () => {
+ console.log("Server listening on port 3000");
+
+ setInterval(() => {
+ console.log("Server listening...");
+ }, 3000);
+});
diff --git a/Chapter13/debugging-with-chrome/package-lock.json b/Chapter13/debugging-with-chrome/package-lock.json
new file mode 100644
index 0000000..589604b
--- /dev/null
+++ b/Chapter13/debugging-with-chrome/package-lock.json
@@ -0,0 +1,374 @@
+{
+ "name": "debugging-with-chrome",
+ "version": "1.0.0",
+ "lockfileVersion": 1,
+ "requires": true,
+ "dependencies": {
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+ "requires": {
+ "mime-types": "~2.1.24",
+ "negotiator": "0.6.2"
+ }
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+ "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
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diff --git a/Chapter13/debugging-with-chrome/package.json b/Chapter13/debugging-with-chrome/package.json
new file mode 100644
index 0000000..a939b61
--- /dev/null
+++ b/Chapter13/debugging-with-chrome/package.json
@@ -0,0 +1,15 @@
+{
+ "name": "debugging-with-chrome",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "dependencies": {
+ "express": "^4.17.1"
+ }
+}
diff --git a/Chapter13/debugging-with-chrome/random.js b/Chapter13/debugging-with-chrome/random.js
new file mode 100644
index 0000000..6d37dac
--- /dev/null
+++ b/Chapter13/debugging-with-chrome/random.js
@@ -0,0 +1,4 @@
+module.exports = (n) => {
+ const randomNumber = Math.floor(Math.random() * n) + "1";
+ return randomNumber;
+};
diff --git a/Chapter13/debugging-with-chrome/server.js b/Chapter13/debugging-with-chrome/server.js
new file mode 100644
index 0000000..0a0cf73
--- /dev/null
+++ b/Chapter13/debugging-with-chrome/server.js
@@ -0,0 +1,12 @@
+const express = require("express");
+const app = express();
+const random = require("./random");
+
+app.get("/:number", (req, res) => {
+ const number = req.params.number;
+ res.send(random(number).toString());
+});
+
+app.listen(3000, () => {
+ console.log("Server listening on port 3000");
+});
diff --git a/Chapter13/diagnostic-report/server.js b/Chapter13/diagnostic-report/server.js
new file mode 100644
index 0000000..637398a
--- /dev/null
+++ b/Chapter13/diagnostic-report/server.js
@@ -0,0 +1,7 @@
+const http = require("http");
+const path = require("path");
+
+//process.report.directory = path.join(__dirname, "reports");
+process.report.filename = "my-diagnostic-report.json";
+
+http.get("hello://localhost:3000", (response) => {});
\ No newline at end of file
diff --git a/Chapter13/express-debug-app/package-lock.json b/Chapter13/express-debug-app/package-lock.json
new file mode 100644
index 0000000..f8a052c
--- /dev/null
+++ b/Chapter13/express-debug-app/package-lock.json
@@ -0,0 +1,374 @@
+{
+ "name": "express-debug-app",
+ "version": "1.0.0",
+ "lockfileVersion": 1,
+ "requires": true,
+ "dependencies": {
+ "accepts": {
+ "version": "1.3.7",
+ "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+ "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
+ "requires": {
+ "mime-types": "~2.1.24",
+ "negotiator": "0.6.2"
+ }
+ },
+ "array-flatten": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+ "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+ },
+ "body-parser": {
+ "version": "1.19.0",
+ "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
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diff --git a/Chapter13/express-debug-app/package.json b/Chapter13/express-debug-app/package.json
new file mode 100644
index 0000000..8e2bb3e
--- /dev/null
+++ b/Chapter13/express-debug-app/package.json
@@ -0,0 +1,15 @@
+{
+ "name": "express-debug-app",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "dependencies": {
+ "express": "^4.17.1"
+ }
+}
diff --git a/Chapter13/express-debug-app/server.js b/Chapter13/express-debug-app/server.js
new file mode 100644
index 0000000..b53688a
--- /dev/null
+++ b/Chapter13/express-debug-app/server.js
@@ -0,0 +1,8 @@
+const express = require("express");
+const app = express();
+
+app.get("/", (req, res) => res.send("Hello World!"));
+
+app.listen(3000, () => {
+ console.log("Server listening on port 3000");
+});
\ No newline at end of file
diff --git a/Chapter13/express-debug-custom/package-lock.json b/Chapter13/express-debug-custom/package-lock.json
new file mode 100644
index 0000000..f8a052c
--- /dev/null
+++ b/Chapter13/express-debug-custom/package-lock.json
@@ -0,0 +1,374 @@
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+ "lockfileVersion": 1,
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+ "requires": {
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+ "http-errors": "1.7.2",
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+ "resolved": "https://registry.npmjs.org/send/-/send-0.17.1.tgz",
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+ "debug": "2.6.9",
+ "depd": "~1.1.2",
+ "destroy": "~1.0.4",
+ "encodeurl": "~1.0.2",
+ "escape-html": "~1.0.3",
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+ "range-parser": "~1.2.1",
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+ }
+ }
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+ "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
+ "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
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+ "escape-html": "~1.0.3",
+ "parseurl": "~1.3.3",
+ "send": "0.17.1"
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+ "requires": {
+ "media-typer": "0.3.0",
+ "mime-types": "~2.1.24"
+ }
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+ "unpipe": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+ "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+ },
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+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+ "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
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+ "version": "1.1.2",
+ "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
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+}
diff --git a/Chapter13/express-debug-custom/package.json b/Chapter13/express-debug-custom/package.json
new file mode 100644
index 0000000..8e2bb3e
--- /dev/null
+++ b/Chapter13/express-debug-custom/package.json
@@ -0,0 +1,15 @@
+{
+ "name": "express-debug-app",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "dependencies": {
+ "express": "^4.17.1"
+ }
+}
diff --git a/Chapter13/express-debug-custom/server.js b/Chapter13/express-debug-custom/server.js
new file mode 100644
index 0000000..3b28b05
--- /dev/null
+++ b/Chapter13/express-debug-custom/server.js
@@ -0,0 +1,12 @@
+const express = require("express");
+const app = express();
+const debug = require("debug")("my-server");
+
+app.get("/", (req, res) => {
+ debug("HTTP GET request to /");
+ res.send("Hello World!");
+});
+
+app.listen(3000, () => {
+ console.log("Server listening on port 3000");
+});
diff --git a/Chapter13/express-morgan-app/app.js b/Chapter13/express-morgan-app/app.js
new file mode 100644
index 0000000..62dff0d
--- /dev/null
+++ b/Chapter13/express-morgan-app/app.js
@@ -0,0 +1,41 @@
+var createError = require('http-errors');
+var express = require('express');
+var path = require('path');
+var cookieParser = require('cookie-parser');
+var logger = require('morgan');
+
+var indexRouter = require('./routes/index');
+var usersRouter = require('./routes/users');
+
+var app = express();
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'ejs');
+
+app.use(logger('dev'));
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+app.use(cookieParser());
+app.use(express.static(path.join(__dirname, 'public')));
+
+app.use('/', indexRouter);
+app.use('/users', usersRouter);
+
+// catch 404 and forward to error handler
+app.use(function(req, res, next) {
+ next(createError(404));
+});
+
+// error handler
+app.use(function(err, req, res, next) {
+ // set locals, only providing error in development
+ res.locals.message = err.message;
+ res.locals.error = req.app.get('env') === 'development' ? err : {};
+
+ // render the error page
+ res.status(err.status || 500);
+ res.render('error');
+});
+
+module.exports = app;
diff --git a/Chapter13/express-morgan-app/bin/www b/Chapter13/express-morgan-app/bin/www
new file mode 100755
index 0000000..d166327
--- /dev/null
+++ b/Chapter13/express-morgan-app/bin/www
@@ -0,0 +1,90 @@
+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+var app = require('../app');
+var debug = require('debug')('express-morgan-app:server');
+var http = require('http');
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+var port = normalizePort(process.env.PORT || '3000');
+app.set('port', port);
+
+/**
+ * Create HTTP server.
+ */
+
+var server = http.createServer(app);
+
+/**
+ * Listen on provided port, on all network interfaces.
+ */
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val) {
+ var port = parseInt(val, 10);
+
+ if (isNaN(port)) {
+ // named pipe
+ return val;
+ }
+
+ if (port >= 0) {
+ // port number
+ return port;
+ }
+
+ return false;
+}
+
+/**
+ * Event listener for HTTP server "error" event.
+ */
+
+function onError(error) {
+ if (error.syscall !== 'listen') {
+ throw error;
+ }
+
+ var bind = typeof port === 'string'
+ ? 'Pipe ' + port
+ : 'Port ' + port;
+
+ // handle specific listen errors with friendly messages
+ switch (error.code) {
+ case 'EACCES':
+ console.error(bind + ' requires elevated privileges');
+ process.exit(1);
+ break;
+ case 'EADDRINUSE':
+ console.error(bind + ' is already in use');
+ process.exit(1);
+ break;
+ default:
+ throw error;
+ }
+}
+
+/**
+ * Event listener for HTTP server "listening" event.
+ */
+
+function onListening() {
+ var addr = server.address();
+ var bind = typeof addr === 'string'
+ ? 'pipe ' + addr
+ : 'port ' + addr.port;
+ debug('Listening on ' + bind);
+}
diff --git a/Chapter13/express-morgan-app/package-lock.json b/Chapter13/express-morgan-app/package-lock.json
new file mode 100644
index 0000000..0926ecc
--- /dev/null
+++ b/Chapter13/express-morgan-app/package-lock.json
@@ -0,0 +1,404 @@
+{
+ "name": "express-morgan-app",
+ "version": "0.0.0",
+ "lockfileVersion": 1,
+ "requires": true,
+ "dependencies": {
+ "accepts": {
+ "version": "1.3.7",
+ "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
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diff --git a/Chapter13/express-morgan-app/package.json b/Chapter13/express-morgan-app/package.json
new file mode 100644
index 0000000..bd931d0
--- /dev/null
+++ b/Chapter13/express-morgan-app/package.json
@@ -0,0 +1,16 @@
+{
+ "name": "express-morgan-app",
+ "version": "0.0.0",
+ "private": true,
+ "scripts": {
+ "start": "node ./bin/www"
+ },
+ "dependencies": {
+ "cookie-parser": "~1.4.4",
+ "debug": "~2.6.9",
+ "ejs": "~2.6.1",
+ "express": "~4.16.1",
+ "http-errors": "~1.6.3",
+ "morgan": "~1.9.1"
+ }
+}
diff --git a/Chapter13/express-morgan-app/public/stylesheets/style.css b/Chapter13/express-morgan-app/public/stylesheets/style.css
new file mode 100644
index 0000000..9453385
--- /dev/null
+++ b/Chapter13/express-morgan-app/public/stylesheets/style.css
@@ -0,0 +1,8 @@
+body {
+ padding: 50px;
+ font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
+}
+
+a {
+ color: #00B7FF;
+}
diff --git a/Chapter13/express-morgan-app/routes/index.js b/Chapter13/express-morgan-app/routes/index.js
new file mode 100644
index 0000000..ecca96a
--- /dev/null
+++ b/Chapter13/express-morgan-app/routes/index.js
@@ -0,0 +1,9 @@
+var express = require('express');
+var router = express.Router();
+
+/* GET home page. */
+router.get('/', function(req, res, next) {
+ res.render('index', { title: 'Express' });
+});
+
+module.exports = router;
diff --git a/Chapter13/express-morgan-app/routes/users.js b/Chapter13/express-morgan-app/routes/users.js
new file mode 100644
index 0000000..623e430
--- /dev/null
+++ b/Chapter13/express-morgan-app/routes/users.js
@@ -0,0 +1,9 @@
+var express = require('express');
+var router = express.Router();
+
+/* GET users listing. */
+router.get('/', function(req, res, next) {
+ res.send('respond with a resource');
+});
+
+module.exports = router;
diff --git a/Chapter13/express-morgan-app/views/error.ejs b/Chapter13/express-morgan-app/views/error.ejs
new file mode 100644
index 0000000..7cf94ed
--- /dev/null
+++ b/Chapter13/express-morgan-app/views/error.ejs
@@ -0,0 +1,3 @@
+<%= message %>
+<%= error.status %>
+<%= error.stack %>
diff --git a/Chapter13/express-morgan-app/views/index.ejs b/Chapter13/express-morgan-app/views/index.ejs
new file mode 100644
index 0000000..7b7a1d6
--- /dev/null
+++ b/Chapter13/express-morgan-app/views/index.ejs
@@ -0,0 +1,11 @@
+
+
+
+ <%= title %>
+
+
+
+ <%= title %>
+ Welcome to <%= title %>
+
+
diff --git a/Chapter13/express-pino-app/package-lock.json b/Chapter13/express-pino-app/package-lock.json
new file mode 100644
index 0000000..ac1740d
--- /dev/null
+++ b/Chapter13/express-pino-app/package-lock.json
@@ -0,0 +1,457 @@
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+ }
+ }
+ },
+ "serve-static": {
+ "version": "1.14.1",
+ "resolved": "https://registry.npmjs.org/serve-static/-/serve-static-1.14.1.tgz",
+ "integrity": "sha512-JMrvUwE54emCYWlTI+hGrGv5I8dEwmco/00EvkzIIsR7MqrHonbD9pO2MOfFnpFntl7ecpZs+3mW+XbQZu9QCg==",
+ "requires": {
+ "encodeurl": "~1.0.2",
+ "escape-html": "~1.0.3",
+ "parseurl": "~1.3.3",
+ "send": "0.17.1"
+ }
+ },
+ "setprototypeof": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/setprototypeof/-/setprototypeof-1.1.1.tgz",
+ "integrity": "sha512-JvdAWfbXeIGaZ9cILp38HntZSFSo3mWg6xGcJJsd+d4aRMOqauag1C63dJfDw7OaMYwEbHMOxEZ1lqVRYP2OAw=="
+ },
+ "sonic-boom": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/sonic-boom/-/sonic-boom-1.0.1.tgz",
+ "integrity": "sha512-o9tx+bonVEXSaPtptyXQXpP8l6UV9Bi3im2geZskvWw2a/o/hrbWI7EBbbv+rOx6Hubnzun9GgH4WfbgEA3MFQ==",
+ "requires": {
+ "atomic-sleep": "^1.0.0",
+ "flatstr": "^1.0.12"
+ }
+ },
+ "statuses": {
+ "version": "1.5.0",
+ "resolved": "https://registry.npmjs.org/statuses/-/statuses-1.5.0.tgz",
+ "integrity": "sha1-Fhx9rBd2Wf2YEfQ3cfqZOBR4Yow="
+ },
+ "toidentifier": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/toidentifier/-/toidentifier-1.0.0.tgz",
+ "integrity": "sha512-yaOH/Pk/VEhBWWTlhI+qXxDFXlejDGcQipMlyxda9nthulaxLZUNcUqFxokp0vcYnvteJln5FNQDRrxj3YcbVw=="
+ },
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+ "version": "1.6.18",
+ "resolved": "https://registry.npmjs.org/type-is/-/type-is-1.6.18.tgz",
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+ "requires": {
+ "media-typer": "0.3.0",
+ "mime-types": "~2.1.24"
+ }
+ },
+ "unpipe": {
+ "version": "1.0.0",
+ "resolved": "https://registry.npmjs.org/unpipe/-/unpipe-1.0.0.tgz",
+ "integrity": "sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw="
+ },
+ "utils-merge": {
+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+ "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+ },
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+ "version": "1.1.2",
+ "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+ "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+ }
+ }
+}
diff --git a/Chapter13/express-pino-app/package.json b/Chapter13/express-pino-app/package.json
new file mode 100644
index 0000000..a8f5d28
--- /dev/null
+++ b/Chapter13/express-pino-app/package.json
@@ -0,0 +1,18 @@
+{
+ "name": "express-pino-app",
+ "version": "1.0.0",
+ "description": "",
+ "main": "server.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1",
+ "start": "node server.js"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "dependencies": {
+ "express": "^4.17.1",
+ "express-pino-logger": "^5.0.0",
+ "pino": "^6.3.2"
+ }
+}
diff --git a/Chapter13/express-pino-app/server.js b/Chapter13/express-pino-app/server.js
new file mode 100644
index 0000000..ef357b5
--- /dev/null
+++ b/Chapter13/express-pino-app/server.js
@@ -0,0 +1,22 @@
+const express = require("express");
+const app = express();
+const PORT = 3000;
+
+const pino = require("pino")();
+const logger = require("express-pino-logger")({
+ instance: pino,
+});
+
+app.use(logger);
+
+app.get("/", (req, res) => {
+ req.log.info("Generating random number");
+ const randomNumber = getRandomNumber();
+ res.send(`${randomNumber}`);
+});
+
+app.listen(PORT, () => pino.info(`Server listening on port ${PORT}`));
+
+function getRandomNumber() {
+ return Math.floor(Math.random() * 100) + 1;
+}
diff --git a/Chapter13/express-winston-app/app.js b/Chapter13/express-winston-app/app.js
new file mode 100644
index 0000000..820c468
--- /dev/null
+++ b/Chapter13/express-winston-app/app.js
@@ -0,0 +1,50 @@
+var createError = require('http-errors');
+var express = require('express');
+var path = require('path');
+var cookieParser = require('cookie-parser');
+
+var winston = require('winston');
+var expressWinston = require('express-winston');
+
+var indexRouter = require('./routes/index');
+var usersRouter = require('./routes/users');
+
+var app = express();
+
+// view engine setup
+app.set('views', path.join(__dirname, 'views'));
+app.set('view engine', 'ejs');
+
+app.use(expressWinston.logger({
+ transports: [
+ new winston.transports.Console({
+ json: true
+ })
+ ]
+}));
+
+app.use(express.json());
+app.use(express.urlencoded({ extended: false }));
+app.use(cookieParser());
+app.use(express.static(path.join(__dirname, 'public')));
+
+app.use('/', indexRouter);
+app.use('/users', usersRouter);
+
+// catch 404 and forward to error handler
+app.use(function(req, res, next) {
+ next(createError(404));
+});
+
+// error handler
+app.use(function(err, req, res, next) {
+ // set locals, only providing error in development
+ res.locals.message = err.message;
+ res.locals.error = req.app.get('env') === 'development' ? err : {};
+
+ // render the error page
+ res.status(err.status || 500);
+ res.render('error');
+});
+
+module.exports = app;
diff --git a/Chapter13/express-winston-app/bin/www b/Chapter13/express-winston-app/bin/www
new file mode 100755
index 0000000..702565d
--- /dev/null
+++ b/Chapter13/express-winston-app/bin/www
@@ -0,0 +1,90 @@
+#!/usr/bin/env node
+
+/**
+ * Module dependencies.
+ */
+
+var app = require('../app');
+var debug = require('debug')('express-winston-app:server');
+var http = require('http');
+
+/**
+ * Get port from environment and store in Express.
+ */
+
+var port = normalizePort(process.env.PORT || '3000');
+app.set('port', port);
+
+/**
+ * Create HTTP server.
+ */
+
+var server = http.createServer(app);
+
+/**
+ * Listen on provided port, on all network interfaces.
+ */
+
+server.listen(port);
+server.on('error', onError);
+server.on('listening', onListening);
+
+/**
+ * Normalize a port into a number, string, or false.
+ */
+
+function normalizePort(val) {
+ var port = parseInt(val, 10);
+
+ if (isNaN(port)) {
+ // named pipe
+ return val;
+ }
+
+ if (port >= 0) {
+ // port number
+ return port;
+ }
+
+ return false;
+}
+
+/**
+ * Event listener for HTTP server "error" event.
+ */
+
+function onError(error) {
+ if (error.syscall !== 'listen') {
+ throw error;
+ }
+
+ var bind = typeof port === 'string'
+ ? 'Pipe ' + port
+ : 'Port ' + port;
+
+ // handle specific listen errors with friendly messages
+ switch (error.code) {
+ case 'EACCES':
+ console.error(bind + ' requires elevated privileges');
+ process.exit(1);
+ break;
+ case 'EADDRINUSE':
+ console.error(bind + ' is already in use');
+ process.exit(1);
+ break;
+ default:
+ throw error;
+ }
+}
+
+/**
+ * Event listener for HTTP server "listening" event.
+ */
+
+function onListening() {
+ var addr = server.address();
+ var bind = typeof addr === 'string'
+ ? 'pipe ' + addr
+ : 'port ' + addr.port;
+ debug('Listening on ' + bind);
+}
diff --git a/Chapter13/express-winston-app/package-lock.json b/Chapter13/express-winston-app/package-lock.json
new file mode 100644
index 0000000..3ddb339
--- /dev/null
+++ b/Chapter13/express-winston-app/package-lock.json
@@ -0,0 +1,679 @@
+{
+ "name": "express-winston-app",
+ "version": "0.0.0",
+ "lockfileVersion": 1,
+ "requires": true,
+ "dependencies": {
+ "accepts": {
+ "version": "1.3.7",
+ "resolved": "https://registry.npmjs.org/accepts/-/accepts-1.3.7.tgz",
+ "integrity": "sha512-Il80Qs2WjYlJIBNzNkK6KYqlVMTbZLXgHx2oT0pU/fjRHyEp+PEfEPY0R3WCwAGVOtauxh1hOxNgIf5bv7dQpA==",
+ "requires": {
+ "mime-types": "~2.1.24",
+ "negotiator": "0.6.2"
+ }
+ },
+ "ansi-styles": {
+ "version": "3.2.1",
+ "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-3.2.1.tgz",
+ "integrity": "sha512-VT0ZI6kZRdTh8YyJw3SMbYm/u+NqfsAxEpWO0Pf9sq8/e94WxxOpPKx9FR1FlyCtOVDNOQ+8ntlqFxiRc+r5qA==",
+ "requires": {
+ "color-convert": "^1.9.0"
+ }
+ },
+ "array-flatten": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+ "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+ },
+ "async": {
+ "version": "2.6.3",
+ "resolved": "https://registry.npmjs.org/async/-/async-2.6.3.tgz",
+ "integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
+ "requires": {
+ "lodash": "^4.17.14"
+ }
+ },
+ "body-parser": {
+ "version": "1.18.3",
+ "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
+ "integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
+ "requires": {
+ "bytes": "3.0.0",
+ "content-type": "~1.0.4",
+ "debug": "2.6.9",
+ "depd": "~1.1.2",
+ "http-errors": "~1.6.3",
+ "iconv-lite": "0.4.23",
+ "on-finished": "~2.3.0",
+ "qs": "6.5.2",
+ "raw-body": "2.3.3",
+ "type-is": "~1.6.16"
+ }
+ },
+ "bytes": {
+ "version": "3.0.0",
+ "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.0.0.tgz",
+ "integrity": "sha1-0ygVQE1olpn4Wk6k+odV3ROpYEg="
+ },
+ "chalk": {
+ "version": "2.4.2",
+ "resolved": "https://registry.npmjs.org/chalk/-/chalk-2.4.2.tgz",
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+ "requires": {
+ "ansi-styles": "^3.2.1",
+ "escape-string-regexp": "^1.0.5",
+ "supports-color": "^5.3.0"
+ }
+ },
+ "color": {
+ "version": "3.0.0",
+ "resolved": "https://registry.npmjs.org/color/-/color-3.0.0.tgz",
+ "integrity": "sha512-jCpd5+s0s0t7p3pHQKpnJ0TpQKKdleP71LWcA0aqiljpiuAkOSUFN/dyH8ZwF0hRmFlrIuRhufds1QyEP9EB+w==",
+ "requires": {
+ "color-convert": "^1.9.1",
+ "color-string": "^1.5.2"
+ }
+ },
+ "color-convert": {
+ "version": "1.9.3",
+ "resolved": "https://registry.npmjs.org/color-convert/-/color-convert-1.9.3.tgz",
+ "integrity": "sha512-QfAUtd+vFdAtFQcC8CCyYt1fYWxSqAiK2cSD6zDB8N3cpsEBAvRxp9zOGg6G/SHHJYAT88/az/IuDGALsNVbGg==",
+ "requires": {
+ "color-name": "1.1.3"
+ }
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+ "resolved": "https://registry.npmjs.org/color-name/-/color-name-1.1.3.tgz",
+ "integrity": "sha1-p9BVi9icQveV3UIyj3QIMcpTvCU="
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+ "requires": {
+ "color-name": "^1.0.0",
+ "simple-swizzle": "^0.2.2"
+ }
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+ "requires": {
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+ },
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+ }
+}
diff --git a/Chapter13/express-winston-app/package.json b/Chapter13/express-winston-app/package.json
new file mode 100644
index 0000000..f0bd80b
--- /dev/null
+++ b/Chapter13/express-winston-app/package.json
@@ -0,0 +1,17 @@
+{
+ "name": "express-winston-app",
+ "version": "0.0.0",
+ "private": true,
+ "scripts": {
+ "start": "node ./bin/www"
+ },
+ "dependencies": {
+ "cookie-parser": "~1.4.4",
+ "debug": "~2.6.9",
+ "ejs": "~2.6.1",
+ "express": "~4.16.1",
+ "express-winston": "^4.0.3",
+ "http-errors": "~1.6.3",
+ "winston": "^3.2.1"
+ }
+}
diff --git a/Chapter13/express-winston-app/public/stylesheets/style.css b/Chapter13/express-winston-app/public/stylesheets/style.css
new file mode 100644
index 0000000..9453385
--- /dev/null
+++ b/Chapter13/express-winston-app/public/stylesheets/style.css
@@ -0,0 +1,8 @@
+body {
+ padding: 50px;
+ font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
+}
+
+a {
+ color: #00B7FF;
+}
diff --git a/Chapter13/express-winston-app/routes/index.js b/Chapter13/express-winston-app/routes/index.js
new file mode 100644
index 0000000..ecca96a
--- /dev/null
+++ b/Chapter13/express-winston-app/routes/index.js
@@ -0,0 +1,9 @@
+var express = require('express');
+var router = express.Router();
+
+/* GET home page. */
+router.get('/', function(req, res, next) {
+ res.render('index', { title: 'Express' });
+});
+
+module.exports = router;
diff --git a/Chapter13/express-winston-app/routes/users.js b/Chapter13/express-winston-app/routes/users.js
new file mode 100644
index 0000000..623e430
--- /dev/null
+++ b/Chapter13/express-winston-app/routes/users.js
@@ -0,0 +1,9 @@
+var express = require('express');
+var router = express.Router();
+
+/* GET users listing. */
+router.get('/', function(req, res, next) {
+ res.send('respond with a resource');
+});
+
+module.exports = router;
diff --git a/Chapter13/express-winston-app/views/error.ejs b/Chapter13/express-winston-app/views/error.ejs
new file mode 100644
index 0000000..7cf94ed
--- /dev/null
+++ b/Chapter13/express-winston-app/views/error.ejs
@@ -0,0 +1,3 @@
+<%= message %>
+<%= error.status %>
+<%= error.stack %>
diff --git a/Chapter13/express-winston-app/views/index.ejs b/Chapter13/express-winston-app/views/index.ejs
new file mode 100644
index 0000000..7b7a1d6
--- /dev/null
+++ b/Chapter13/express-winston-app/views/index.ejs
@@ -0,0 +1,11 @@
+
+
+
+ <%= title %>
+
+
+
+ <%= title %>
+ Welcome to <%= title %>
+
+
diff --git a/Chapter13/stack-trace-app/package-lock.json b/Chapter13/stack-trace-app/package-lock.json
new file mode 100644
index 0000000..c29f9bc
--- /dev/null
+++ b/Chapter13/stack-trace-app/package-lock.json
@@ -0,0 +1,374 @@
+{
+ "name": "stack-trace-app",
+ "version": "1.0.0",
+ "lockfileVersion": 1,
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+ "requires": {
+ "mime-types": "~2.1.24",
+ "negotiator": "0.6.2"
+ }
+ },
+ "array-flatten": {
+ "version": "1.1.1",
+ "resolved": "https://registry.npmjs.org/array-flatten/-/array-flatten-1.1.1.tgz",
+ "integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
+ },
+ "body-parser": {
+ "version": "1.19.0",
+ "resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.19.0.tgz",
+ "integrity": "sha512-dhEPs72UPbDnAQJ9ZKMNTP6ptJaionhP5cBb541nXPlW60Jepo9RV/a4fX4XWW9CuFNK22krhrj1+rgzifNCsw==",
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+ "content-type": "~1.0.4",
+ "debug": "2.6.9",
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+ "iconv-lite": "0.4.24",
+ "on-finished": "~2.3.0",
+ "qs": "6.7.0",
+ "raw-body": "2.4.0",
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+ }
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+ "version": "3.1.0",
+ "resolved": "https://registry.npmjs.org/bytes/-/bytes-3.1.0.tgz",
+ "integrity": "sha512-zauLjrfCG+xvoyaqLoV8bLVXXNGC4JqlxFCutSDWA6fJrTo2ZuvLYTqZ7aHBLZSMOopbzwv8f+wZcVzfVTI2Dg=="
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+ "version": "0.5.3",
+ "resolved": "https://registry.npmjs.org/content-disposition/-/content-disposition-0.5.3.tgz",
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+ "version": "1.0.1",
+ "resolved": "https://registry.npmjs.org/utils-merge/-/utils-merge-1.0.1.tgz",
+ "integrity": "sha1-n5VxD1CiZ5R7LMwSR0HBAoQn5xM="
+ },
+ "vary": {
+ "version": "1.1.2",
+ "resolved": "https://registry.npmjs.org/vary/-/vary-1.1.2.tgz",
+ "integrity": "sha1-IpnwLG3tMNSllhsLn3RSShj2NPw="
+ }
+ }
+}
diff --git a/Chapter13/stack-trace-app/package.json b/Chapter13/stack-trace-app/package.json
new file mode 100644
index 0000000..2a35474
--- /dev/null
+++ b/Chapter13/stack-trace-app/package.json
@@ -0,0 +1,15 @@
+{
+ "name": "stack-trace-app",
+ "version": "1.0.0",
+ "description": "",
+ "main": "index.js",
+ "scripts": {
+ "test": "echo \"Error: no test specified\" && exit 1"
+ },
+ "keywords": [],
+ "author": "",
+ "license": "ISC",
+ "dependencies": {
+ "express": "^4.17.1"
+ }
+}
diff --git a/Chapter13/stack-trace-app/routes.js b/Chapter13/stack-trace-app/routes.js
new file mode 100644
index 0000000..a059d60
--- /dev/null
+++ b/Chapter13/stack-trace-app/routes.js
@@ -0,0 +1,17 @@
+const express = require("express");
+const router = new express.Router();
+
+router.get("/", (req, res) => {
+ res.send(recursiveContent());
+});
+
+function recursiveContent(content, i = 15) {
+ --i;
+ if (i !== 0) {
+ return recursiveContent(content, i);
+ } else {
+ return content.undefined_property;
+ }
+}
+
+module.exports = router;
diff --git a/Chapter13/stack-trace-app/server.js b/Chapter13/stack-trace-app/server.js
new file mode 100644
index 0000000..865790f
--- /dev/null
+++ b/Chapter13/stack-trace-app/server.js
@@ -0,0 +1,8 @@
+const express = require("express");
+const routes = require("./routes");
+const app = express();
+
+app.use(routes);
+app.listen(3000, () => {
+ console.log("Server listening on port 3000");
+});