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Chapter 13: initial samples

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This commit is contained in:
Beth Griggs
2020-08-03 00:09:53 +01:00
parent 6b79a9e6fb
commit d123a16d35
40 changed files with 4004 additions and 0 deletions
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Chapter13/async-stack-trace/example.js
+13
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@@ -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");
}
Chapter13/core-debug-logs/package-lock.json
Generated
+374
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@@ -0,0 +1,374 @@
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Chapter13/core-debug-logs/package.json
+15
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@@ -0,0 +1,15 @@
{
"name": "core-debug-logs",
"version": "1.0.0",
"description": "",
"main": "index.js",
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"author": "",
"license": "ISC",
"dependencies": {
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}
}
Chapter13/core-debug-logs/server.js
+14
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@@ -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);
});
Chapter13/debugging-with-chrome/package-lock.json
Generated
+374
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@@ -0,0 +1,374 @@
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Chapter13/debugging-with-chrome/package.json
+15
View File
@@ -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"
}
}
Chapter13/debugging-with-chrome/random.js
+4
View File
@@ -0,0 +1,4 @@
module.exports = (n) => {
const randomNumber = Math.floor(Math.random() * n) + "1";
return randomNumber;
};
Chapter13/debugging-with-chrome/server.js
+12
View File
@@ -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");
});
Chapter13/diagnostic-report/server.js
+7
View File
@@ -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) => {});
Chapter13/express-debug-app/package-lock.json
Generated
+374
View File
@@ -0,0 +1,374 @@
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Chapter13/express-debug-app/package.json
+15
View File
@@ -0,0 +1,15 @@
{
"name": "express-debug-app",
"version": "1.0.0",
"description": "",
"main": "index.js",
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"license": "ISC",
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}
}
Chapter13/express-debug-app/server.js
+8
View File
@@ -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");
});
Chapter13/express-debug-custom/package-lock.json
Generated
+374
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@@ -0,0 +1,374 @@
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Chapter13/express-debug-custom/package.json
+15
View File
@@ -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"
}
}
Chapter13/express-debug-custom/server.js
+12
View File
@@ -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");
});
Chapter13/express-morgan-app/app.js
+41
View File
@@ -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;
Chapter13/express-morgan-app/bin/www
Executable
+90
View File
@@ -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);
}
Chapter13/express-morgan-app/package-lock.json
Generated
+404
View File
@@ -0,0 +1,404 @@
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"requires": {
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"integrity": "sha1-ml9pkFGx5wczKPKgCJaLZOopVdI="
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Chapter13/express-morgan-app/package.json
+16
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@@ -0,0 +1,16 @@
{
"name": "express-morgan-app",
"version": "0.0.0",
"private": true,
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}
Chapter13/express-morgan-app/public/stylesheets/style.css
+8
View File
@@ -0,0 +1,8 @@
body {
padding: 50px;
font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}
a {
color: #00B7FF;
}
Chapter13/express-morgan-app/routes/index.js
+9
View File
@@ -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;
Chapter13/express-morgan-app/routes/users.js
+9
View File
@@ -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;
Chapter13/express-morgan-app/views/error.ejs
+3
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@@ -0,0 +1,3 @@
<h1><%= message %></h1>
<h2><%= error.status %></h2>
<pre><%= error.stack %></pre>
Chapter13/express-morgan-app/views/index.ejs
+11
View File
@@ -0,0 +1,11 @@
<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
<link rel='stylesheet' href='/stylesheets/style.css' />
</head>
<body>
<h1><%= title %></h1>
<p>Welcome to <%= title %></p>
</body>
</html>
Chapter13/express-pino-app/package-lock.json
Generated
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Chapter13/express-pino-app/package.json
+18
View File
@@ -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"
}
}
Chapter13/express-pino-app/server.js
+22
View File
@@ -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;
}
Chapter13/express-winston-app/app.js
+50
View File
@@ -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;
Chapter13/express-winston-app/bin/www
Executable
+90
View File
@@ -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);
}
Chapter13/express-winston-app/package-lock.json
Generated
+679
View File
@@ -0,0 +1,679 @@
{
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"requires": {
"mime-types": "~2.1.24",
"negotiator": "0.6.2"
}
},
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"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="
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"async": {
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"integrity": "sha512-zflvls11DCy+dQWzTW2dzuilv8Z5X/pjfmZOWba6TNIVDm+2UDaJmXSOXlasHKfNBs8oo3M0aT50fDEWfKZjXg==",
"requires": {
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}
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"body-parser": {
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"resolved": "https://registry.npmjs.org/body-parser/-/body-parser-1.18.3.tgz",
"integrity": "sha1-WykhmP/dVTs6DyDe0FkrlWlVyLQ=",
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"integrity": "sha512-Mti+f9lpJNcwF4tWV8/OrTTtF1gZi+f8FqlyAdouralcFWFQWF2+NgCHShjkCb+IFBLq9buZwE1xckQU4peSuQ==",
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"integrity": "sha512-jCpd5+s0s0t7p3pHQKpnJ0TpQKKdleP71LWcA0aqiljpiuAkOSUFN/dyH8ZwF0hRmFlrIuRhufds1QyEP9EB+w==",
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Chapter13/express-winston-app/package.json
+17
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@@ -0,0 +1,17 @@
{
"name": "express-winston-app",
"version": "0.0.0",
"private": true,
"scripts": {
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},
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}
Chapter13/express-winston-app/public/stylesheets/style.css
+8
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@@ -0,0 +1,8 @@
body {
padding: 50px;
font: 14px "Lucida Grande", Helvetica, Arial, sans-serif;
}
a {
color: #00B7FF;
}
Chapter13/express-winston-app/routes/index.js
+9
View File
@@ -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;
Chapter13/express-winston-app/routes/users.js
+9
View File
@@ -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;
Chapter13/express-winston-app/views/error.ejs
+3
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@@ -0,0 +1,3 @@
<h1><%= message %></h1>
<h2><%= error.status %></h2>
<pre><%= error.stack %></pre>
Chapter13/express-winston-app/views/index.ejs
+11
View File
@@ -0,0 +1,11 @@
<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
<link rel='stylesheet' href='/stylesheets/style.css' />
</head>
<body>
<h1><%= title %></h1>
<p>Welcome to <%= title %></p>
</body>
</html>
Chapter13/stack-trace-app/package-lock.json
Generated
+374
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@@ -0,0 +1,374 @@
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}
Chapter13/stack-trace-app/package.json
+15
View File
@@ -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"
}
}
Chapter13/stack-trace-app/routes.js
+17
View File
@@ -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;
Chapter13/stack-trace-app/server.js
+8
View File
@@ -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");
});