title
Express Tutorial

description
Get the Code Here : http://goo.gl/zmOf30 Best NodeJS / Express Book : http://amzn.to/1I6vNZo Support me on Patreon : https://www.patreon.com/derekbanas Bootstrap Tutorial : https://www.youtube.com/watch?v=gqOEoUR5RHg Handlebars Tutorial : https://www.youtube.com/watch?v=4HuAnM6b2d8 In this tutorial we'll explore the Express NodeJS framework. It provides all of the capabilities of NodeJS, also makes it easy to build robust web applications quite easily using a MVC format. I'll cover how to install on Windows, Mac and Linux. We'll then explore building the server, routes, incorporating Handlebars, incorporating Bootstrap, ports, middleware, app.use, app.get, catching / throwing errors, handling forms, file uploads, cookies, sessions, reading / writing files and much more.

detail
{'title': 'Express Tutorial', 'heatmap': [{'end': 253.574, 'start': 124.235, 'weight': 0.854}, {'end': 376.792, 'start': 342.931, 'weight': 0.744}, {'end': 718.993, 'start': 655.206, 'weight': 0.773}, {'end': 2812.367, 'start': 2773.464, 'weight': 0.952}], 'summary': "Tutorial 'express tutorial' provides an overview of the express node.js framework, covering installation on windows and mac, creating views, layouts, and bootstrap in express.js, setting up an express application, utilizing middleware and handling file uploads, cookies, and sessions. it emphasizes the importance of defining routes and capabilities for effective functionality, with examples of using middleware for various tasks such as error handling and form processing.", 'chapters': [{'end': 52.241, 'segs': [{'end': 52.241, 'src': 'embed', 'start': 19.601, 'weight': 0, 'content': [{'end': 22.723, 'text': "So I'm going to give you an overview of Express in this tutorial.", 'start': 19.601, 'duration': 3.122}, {'end': 27.926, 'text': "Then in the next part I'm going to cover databases and then in the final part we're going to make a big application.", 'start': 22.903, 'duration': 5.023}, {'end': 34.21, 'text': "Now Express is the Node.js framework that's going to provide all of the capabilities of Node.js,", 'start': 28.106, 'duration': 6.104}, {'end': 40.033, 'text': "but it's also going to allow us to easily develop robust web applications using something called middleware.", 'start': 34.21, 'duration': 5.823}, {'end': 45.837, 'text': "You're going to have to have a pretty good understanding of how bootstrap and handlebars work before you can use this tutorial,", 'start': 40.193, 'duration': 5.644}, {'end': 48.819, 'text': 'and I have tutorials on those in the description underneath the video.', 'start': 45.837, 'duration': 2.982}, {'end': 52.241, 'text': 'so watch those first if you have no idea what bootstrap and handlebars are.', 'start': 48.819, 'duration': 3.422}], 'summary': 'Tutorial covers express overview, databases, and big application development using middleware for robust web applications.', 'duration': 32.64, 'max_score': 19.601, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI19601.jpg'}], 'start': 0.129, 'title': 'Express node.js overview', 'summary': 'Provides an overview of the express node.js framework, covering its capabilities and the plan for three tutorials, including a big application, with a recommendation for prior knowledge in bootstrap and handlebars.', 'chapters': [{'end': 52.241, 'start': 0.129, 'title': 'Express node.js overview', 'summary': 'Provides an overview of the express node.js framework, covering its capabilities and the plan for three tutorials, including a big application, with a recommendation for prior knowledge in bootstrap and handlebars.', 'duration': 52.112, 'highlights': ['Express Node.js framework provides capabilities for developing robust web applications using middleware.', 'The tutorial plan includes an overview of Express, covering databases, and creating a big application in three parts.', 'Prior knowledge in bootstrap and handlebars is recommended before using this tutorial.']}], 'duration': 52.112, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI129.jpg', 'highlights': ['The tutorial plan includes an overview of Express, covering databases, and creating a big application in three parts.', 'Express Node.js framework provides capabilities for developing robust web applications using middleware.', 'Prior knowledge in bootstrap and handlebars is recommended before using this tutorial.']}, {'end': 694.797, 'segs': [{'end': 76.362, 'src': 'embed', 'start': 52.481, 'weight': 0, 'content': [{'end': 59.337, 'text': "And now what I'm going to do is show you how to install everything both on Windows as well as on Linux machines and Mac OS.", 'start': 52.481, 'duration': 6.856}, {'end': 64.512, 'text': "Now if you're on Windows, what you're going to want to do first is download Node.js.", 'start': 60.629, 'duration': 3.883}, {'end': 69.236, 'text': "So you're going to go to nodejs.org and just click on Mature and Dependable.", 'start': 64.712, 'duration': 4.524}, {'end': 70.577, 'text': "You're going to get a little message.", 'start': 69.256, 'duration': 1.321}, {'end': 72.699, 'text': 'Do you want to run this? Yes, say run.', 'start': 70.637, 'duration': 2.062}, {'end': 74.881, 'text': "Then you're going to do a whole bunch of clicking on Next.", 'start': 72.719, 'duration': 2.162}, {'end': 76.362, 'text': 'So click on Next right here.', 'start': 74.961, 'duration': 1.401}], 'summary': 'Instructions for installing node.js on windows, mac os, and linux.', 'duration': 23.881, 'max_score': 52.481, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI52481.jpg'}, {'end': 257.836, 'src': 'heatmap', 'start': 115.093, 'weight': 2, 'content': [{'end': 121.354, 'text': 'And this is going to create our package.json file, which is going to define the entry point for our Express application.', 'start': 115.093, 'duration': 6.261}, {'end': 123.835, 'text': "And for the most part, you're just going to be using defaults.", 'start': 121.594, 'duration': 2.241}, {'end': 127.756, 'text': "Whenever you type this in, it's going to either pop up your name or ask you for your name.", 'start': 124.235, 'duration': 3.521}, {'end': 128.576, 'text': 'Just type that in.', 'start': 127.816, 'duration': 0.76}, {'end': 131.836, 'text': "And then you're going to see all the other different things you have to type in thereafter.", 'start': 128.596, 'duration': 3.24}, {'end': 133.657, 'text': "We're going to leave this be as version one.", 'start': 132.076, 'duration': 1.581}, {'end': 135.297, 'text': "You're going to want to give a little description.", 'start': 133.677, 'duration': 1.62}, {'end': 137.078, 'text': 'I just typed the Express tutorial.', 'start': 135.357, 'duration': 1.721}, {'end': 138.038, 'text': "That's perfectly fine.", 'start': 137.098, 'duration': 0.94}, {'end': 139.218, 'text': "Here's your entry point.", 'start': 138.278, 'duration': 0.94}, {'end': 146.855, 'text': "It's pretty common to use index.js, but I personally don't like to use it very much because there's too many index files inside of web applications.", 'start': 139.651, 'duration': 7.204}, {'end': 150.858, 'text': 'It sometimes becomes a little bit complicated, so I call this express-tut.js.', 'start': 146.915, 'duration': 3.943}, {'end': 152.599, 'text': "Test command I'm going to leave as blank.", 'start': 151.138, 'duration': 1.461}, {'end': 155.44, 'text': "Get repository I'm going to leave as blank, and so forth and so on.", 'start': 152.699, 'duration': 2.741}, {'end': 159.923, 'text': 'You can see everything that I did right there, and then you can see that it went and created that file for us.', 'start': 155.46, 'duration': 4.463}, {'end': 167.147, 'text': "Then what I did is I opened up the directory that's going to have, there's the JSON file that was just created for us.", 'start': 160.203, 'duration': 6.944}, {'end': 169.709, 'text': 'And this is just to show you how the directory is all set up.', 'start': 167.227, 'duration': 2.482}, {'end': 172.732, 'text': 'And you can see right here, this is the JSON file that we created.', 'start': 169.93, 'duration': 2.802}, {'end': 175.175, 'text': "And what you're going to want to do is right after version here.", 'start': 172.752, 'duration': 2.423}, {'end': 180.26, 'text': "you're going to want to put a comma and you're going to want to type in private and true and then re-save that.", 'start': 175.175, 'duration': 5.085}, {'end': 182.862, 'text': "And that's going to keep us from getting a whole bunch of different errors.", 'start': 180.3, 'duration': 2.562}, {'end': 187.106, 'text': "And this is Notepad++, if you're wondering, but you can use any type of text editor,", 'start': 183.242, 'duration': 3.864}, {'end': 192.554, 'text': "as long as it's not Microsoft Word or something like that you want a generic text application,", 'start': 187.106, 'duration': 5.448}, {'end': 195.679, 'text': "then what we're going to want to do is go in and install express.", 'start': 192.554, 'duration': 3.125}, {'end': 201.308, 'text': "so again, in the command prompt, you're going to type in npm, install dash, dash, save and then express,", 'start': 195.679, 'duration': 5.629}, {'end': 203.091, 'text': "and it's going to install everything there for you.", 'start': 201.308, 'duration': 1.783}, {'end': 207.414, 'text': "Once again, we're going to want to install handlebars, so we can use that in our application.", 'start': 203.391, 'duration': 4.023}, {'end': 213.64, 'text': "So type in npm install dash dash save express dash handlebars right like that and that's going to install.", 'start': 207.454, 'duration': 6.186}, {'end': 216.742, 'text': "And then here you can see exactly how we're going to be testing everything.", 'start': 213.82, 'duration': 2.922}, {'end': 223.788, 'text': "And you can see here in a really simple type of express application it's going to allow us to test that everything was actually installed.", 'start': 216.922, 'duration': 6.866}, {'end': 233.25, 'text': "so the very first thing we're going to do is go var express is equal to require express and this is just going to import our express module for us to be able to use right here.", 'start': 223.928, 'duration': 9.322}, {'end': 245.632, 'text': "with app set port we're going to be defining that the web application is going to be run on port 3000 and then inside of express and node.js you're going to define things called roots.", 'start': 233.25, 'duration': 12.382}, {'end': 253.574, 'text': "right here i'm just going to use the default forward slash root, which is just going to be just a basic access to the most basic of urls.", 'start': 245.632, 'duration': 7.942}, {'end': 257.836, 'text': 'so it would be something like localhost colon 3000 for port 3000.', 'start': 253.574, 'duration': 4.262}], 'summary': 'Creating a package.json file to define an express application entry point, installing dependencies, and setting up a basic express application for testing.', 'duration': 142.743, 'max_score': 115.093, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI115093.jpg'}, {'end': 297.138, 'src': 'embed', 'start': 267.12, 'weight': 4, 'content': [{'end': 268.56, 'text': 'so we know that that all works.', 'start': 267.12, 'duration': 1.44}, {'end': 277.884, 'text': "and then right down here you can see that it's going to basically tell our web application to listen on port 3000 for any instructions in regards to what information to push out.", 'start': 268.56, 'duration': 9.324}, {'end': 282.058, 'text': 'And then console log is just going to print express started, press control C to terminate.', 'start': 278.097, 'duration': 3.961}, {'end': 285.587, 'text': "Then to actually run this application, you're going to want to save this first.", 'start': 282.284, 'duration': 3.303}, {'end': 288.25, 'text': 'And I called this ExpressTut.js.', 'start': 285.847, 'duration': 2.403}, {'end': 292.273, 'text': 'You saw me point to that file previously whenever we were setting up the JSON file.', 'start': 288.29, 'duration': 3.983}, {'end': 295.476, 'text': "To start your server, you're going to type in node ExpressTut.js.", 'start': 292.453, 'duration': 3.023}, {'end': 297.138, 'text': 'And you can see right there Express started.', 'start': 295.757, 'duration': 1.381}], 'summary': 'Web application listens on port 3000, express started', 'duration': 30.018, 'max_score': 267.12, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI267120.jpg'}, {'end': 336.558, 'src': 'embed', 'start': 305.806, 'weight': 3, 'content': [{'end': 308.048, 'text': 'And ExpressWorks comes from this point right here.', 'start': 305.806, 'duration': 2.242}, {'end': 314.37, 'text': 'So that is how we go in and install Express and Node.js and a whole bunch of other different things inside of Windows.', 'start': 308.228, 'duration': 6.142}, {'end': 317.011, 'text': 'And you can see here the actual layout of everything.', 'start': 314.57, 'duration': 2.441}, {'end': 318.732, 'text': 'So I have a directory called ExpressTut.', 'start': 317.051, 'duration': 1.681}, {'end': 320.632, 'text': "Inside of it, there's Node modules.", 'start': 318.912, 'duration': 1.72}, {'end': 321.973, 'text': 'That was all installed for us.', 'start': 320.672, 'duration': 1.301}, {'end': 323.934, 'text': 'ExpressTut, that was the file we were using.', 'start': 321.993, 'duration': 1.941}, {'end': 325.294, 'text': 'And here is our JSON file.', 'start': 324.054, 'duration': 1.24}, {'end': 331.116, 'text': "So now what I'm going to do is jump over into Macintosh and install pretty much exactly the same things,", 'start': 325.474, 'duration': 5.642}, {'end': 336.558, 'text': 'and then go about creating the rest of our application and exploring the world of the Express framework.', 'start': 331.116, 'duration': 5.442}], 'summary': 'Installing express and node.js on windows and mac to create an application with express framework', 'duration': 30.752, 'max_score': 305.806, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI305806.jpg'}, {'end': 376.792, 'src': 'heatmap', 'start': 342.931, 'weight': 0.744, 'content': [{'end': 354.2, 'text': "So what we're going to want to do here first is we're going to want to create a public directory and then inside of that I'm going to have images and they're just going to be my logos that I'm going to use here just for my sample website.", 'start': 342.931, 'duration': 11.269}, {'end': 356.482, 'text': "I'm going to have another thing called randomfile.txt.", 'start': 354.281, 'duration': 2.201}, {'end': 360.526, 'text': "just going to have some random text in it, because I'm going to show you how to read and write text files.", 'start': 356.482, 'duration': 4.044}, {'end': 366.494, 'text': "We're also going to have a views directory and inside of there you're going to have to create two directories called layouts and partials.", 'start': 360.746, 'duration': 5.748}, {'end': 367.355, 'text': 'Just like that.', 'start': 366.754, 'duration': 0.601}, {'end': 369.658, 'text': 'Feel free to hit pause and do all this stuff.', 'start': 367.495, 'duration': 2.163}, {'end': 371.681, 'text': "I'm just moving along here so we don't waste time.", 'start': 369.698, 'duration': 1.983}, {'end': 373.984, 'text': "You're also going to want to create a readme file.", 'start': 371.801, 'duration': 2.183}, {'end': 376.792, 'text': "And let's just go into this tutorial here.", 'start': 374.431, 'duration': 2.361}], 'summary': 'Create public directory with images, randomfile.txt, views with layouts and partials, and a readme file for the tutorial.', 'duration': 33.861, 'max_score': 342.931, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI342931.jpg'}, {'end': 533.388, 'src': 'embed', 'start': 511.294, 'weight': 5, 'content': [{'end': 520.16, 'text': "So I'm going to get a new file right here and I'm going to say ignore packages installed by NPM because I'm going to set up Git on this.", 'start': 511.294, 'duration': 8.866}, {'end': 522.722, 'text': "I'm going to say node modules.", 'start': 520.621, 'duration': 2.101}, {'end': 526.026, 'text': "That's where we're going to have all those different packages stalled.", 'start': 523.164, 'duration': 2.862}, {'end': 528.227, 'text': 'star tilde ds store.', 'start': 526.306, 'duration': 1.921}, {'end': 533.388, 'text': "this is a macintosh only thing, and then i'm going to have something else called credentials,", 'start': 528.227, 'duration': 5.161}], 'summary': 'Setting up git to ignore npm-installed packages and handling macintosh-specific files', 'duration': 22.094, 'max_score': 511.294, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI511294.jpg'}, {'end': 646.58, 'src': 'embed', 'start': 621.481, 'weight': 6, 'content': [{'end': 629.328, 'text': "we're going to perform different actions, using either middleware functions or just our own code that we'll be typing inside of there.", 'start': 621.481, 'duration': 7.847}, {'end': 637.033, 'text': "now, if a response is going to be valid, we will display the correct view on the screen and if not, we're going to handle different types of errors.", 'start': 629.548, 'duration': 7.485}, {'end': 642.177, 'text': 'so, right here, at the very line number one, this is going to be our entry point for our application.', 'start': 637.033, 'duration': 5.144}, {'end': 646.58, 'text': "so the very first thing we're going to do, just like you saw before, is import our express module.", 'start': 642.177, 'duration': 4.403}], 'summary': 'Developing an application with middleware functions and error handling, starting with express module import.', 'duration': 25.099, 'max_score': 621.481, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI621481.jpg'}], 'start': 52.481, 'title': 'Node.js and express installation', 'summary': 'Covers the installation process of node.js and express on windows and mac, including downloading, installation, and verification steps, as well as creating a package.json file for an express application. it details setting up the directory structure, creating files, and using command prompts, as well as the creation of an express application and the use of middleware functions.', 'chapters': [{'end': 175.175, 'start': 52.481, 'title': 'Node.js installation on windows and mac', 'summary': 'Covers the installation process of node.js on windows and mac, including downloading, installation, and verification steps, as well as creating a package.json file for an express application.', 'duration': 122.694, 'highlights': ['The chapter covers the installation process of Node.js on Windows and Mac The chapter provides detailed instructions for installing Node.js on both Windows and Mac OS, ensuring accessibility for different users.', 'Downloading, installation, and verification steps are explained The process includes downloading Node.js from nodejs.org, clicking through the installation prompts, and verifying the installation using command prompt for Windows and similar steps for Mac OS.', "Creating a package.json file for an Express application is demonstrated The process involves using the 'npm init' command to create a package.json file, specifying entry point and other details, and verifying the creation of the file within the directory."]}, {'end': 694.797, 'start': 175.175, 'title': 'Installing express and node.js on windows and macintosh', 'summary': 'Details the process of installing express and node.js on windows and macintosh, including setting up the directory structure, creating files, and using command prompts. it also covers the creation of an express application and the use of middleware functions for different actions.', 'duration': 519.622, 'highlights': ['The chapter provides a step-by-step guide to installing Express and Node.js on Windows and Macintosh, including setting up the directory structure, creating files, and using command prompts.', 'It covers the process of installing Express and Node.js and setting up the application to run on port 3000, with a demonstration of accessing the application through a web browser.', 'The transcript explains the use of middleware functions and the setup of handlebars for the Express application, including the process of creating different types of responses depending on the requested URL.', 'It also includes the setup of handlebars and the creation of main.handlebars file for the Express application.']}], 'duration': 642.316, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI52481.jpg', 'highlights': ['The chapter provides detailed instructions for installing Node.js on both Windows and Mac OS, ensuring accessibility for different users.', 'The process includes downloading Node.js from nodejs.org, clicking through the installation prompts, and verifying the installation using command prompt for Windows and similar steps for Mac OS.', "The process involves using the 'npm init' command to create a package.json file, specifying entry point and other details, and verifying the creation of the file within the directory.", 'The chapter provides a step-by-step guide to installing Express and Node.js on Windows and Macintosh, including setting up the directory structure, creating files, and using command prompts.', 'It covers the process of installing Express and Node.js and setting up the application to run on port 3000, with a demonstration of accessing the application through a web browser.', 'The transcript explains the use of middleware functions and the setup of handlebars for the Express application, including the process of creating different types of responses depending on the requested URL.', 'It also includes the setup of handlebars and the creation of main.handlebars file for the Express application.']}, {'end': 1133.638, 'segs': [{'end': 791.664, 'src': 'embed', 'start': 712.19, 'weight': 0, 'content': [{'end': 718.993, 'text': "i'm going to type in home handlebars like this and save create another one new file file,", 'start': 712.19, 'duration': 6.803}, {'end': 725.997, 'text': "save as again make sure it's in the views directory and i'm going to type in about handlebars and save that.", 'start': 718.993, 'duration': 7.004}, {'end': 733.66, 'text': 'create another one 404 handlebars, save that and then finally 500 dot handlebars and save that.', 'start': 725.997, 'duration': 7.663}, {'end': 735.321, 'text': 'okay, so we have all those created.', 'start': 733.66, 'duration': 1.661}, {'end': 740.675, 'text': "now let's go and throw some html inside of those Going to jump over into the home.handlebars first.", 'start': 735.321, 'duration': 5.354}, {'end': 742.556, 'text': "And I'm just going to keep this very simple.", 'start': 740.895, 'duration': 1.661}, {'end': 749.198, 'text': "I'm going to go div class is equal to page header, which is going to provide me a little bit of a styling inside of this.", 'start': 742.576, 'duration': 6.622}, {'end': 751.958, 'text': "And then I'm just going to throw an h3 tag inside of here.", 'start': 749.598, 'duration': 2.36}, {'end': 756.74, 'text': "And then inside of it, I'm going to say, welcome to my Express tutorial.", 'start': 752.219, 'duration': 4.521}, {'end': 758.001, 'text': "I'm going to copy this.", 'start': 757.22, 'duration': 0.781}, {'end': 760.622, 'text': "I'm going to use basically the same format for all the other ones.", 'start': 758.021, 'duration': 2.601}, {'end': 763.163, 'text': 'So jump over into about dot handlebars.', 'start': 760.962, 'duration': 2.201}, {'end': 764.564, 'text': 'Paste this inside of here.', 'start': 763.503, 'duration': 1.061}, {'end': 767.945, 'text': "And I'll just do something simple like about us.", 'start': 764.584, 'duration': 3.361}, {'end': 769.126, 'text': 'Perfectly fine.', 'start': 768.346, 'duration': 0.78}, {'end': 769.806, 'text': 'Save that.', 'start': 769.206, 'duration': 0.6}, {'end': 771.367, 'text': '404 handlebars.', 'start': 769.826, 'duration': 1.541}, {'end': 780.452, 'text': "Just come inside of here and type in 404 not found, which is going to be the page that it goes to whenever they can't find the URL you requested.", 'start': 771.707, 'duration': 8.745}, {'end': 783.757, 'text': 'And then in the 500, type in 500.', 'start': 780.472, 'duration': 3.285}, {'end': 788.321, 'text': "And server error, which is going to be the page you go to when there's a server error.", 'start': 783.757, 'duration': 4.564}, {'end': 790.263, 'text': "And that's basically all we need to do with those.", 'start': 788.641, 'duration': 1.622}, {'end': 791.664, 'text': "So let's just close those out.", 'start': 790.323, 'duration': 1.341}], 'summary': 'Created and filled handlebar files for different views with simple html content for an express tutorial.', 'duration': 79.474, 'max_score': 712.19, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI712190.jpg'}], 'start': 695.037, 'title': 'Creating views, layouts, and bootstrap in express.js', 'summary': "Covers creating view files for urls such as 'home', 'about', '404', and '500', integrating partials for the main layout file, 'main.handlebars' in express.js, and setting up bootstrap and express.js to run on port 3000, with references to filenames and directories.", 'chapters': [{'end': 962.441, 'start': 695.037, 'title': 'Creating views and layouts in express.js', 'summary': "Covers the creation of different view files for urls, including 'home', 'about', '404', and '500', and the integration of partials for the head and navigation bar in the main layout file, 'main.handlebars' in express.js.", 'duration': 267.404, 'highlights': ["Creation of different view files for URLs The user creates separate handlebars files for 'home', 'about', '404', and '500' to be displayed on different URLs.", "Integration of partials for head and navigation bar in the main layout file The integration of partials for the head and navigation bar is implemented in the main layout file, 'main.handlebars', to ensure consistent design and functionality across all pages.", "Use of specific styling and content in view files Specific styling and content are added to the view files, such as 'home.handlebars', 'about.handlebars', '404.handlebars', and '500.handlebars', to provide unique displays for each URL."]}, {'end': 1133.638, 'start': 962.721, 'title': 'Setting up bootstrap and express.js', 'summary': 'Discusses setting up bootstrap and express.js for creating a main layout file and configuring the server to run on port 3000, with references to filenames and directories.', 'duration': 170.917, 'highlights': ["Configuring the server to run on port 3000 The chapter sets the server to run on port 3000 using the command 'app.set('port', process.env.PORT || 3000)'.", "Setting up the main layout file with Bootstrap The process of setting up the main layout file 'main.handlebars' using Bootstrap is described, including referencing the navigation bar, defining the HTML structure, adding a script tag for Bootstrap, and setting the default layout as 'main'.", "Accessing the public directory and importing images The method 'app.use(express.static(__dirname + '/public'))' is used to access the public directory and import the images folder for use in the main navigation bar."]}], 'duration': 438.601, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI695037.jpg', 'highlights': ["Creation of different view files for URLs The user creates separate handlebars files for 'home', 'about', '404', and '500' to be displayed on different URLs.", "Integration of partials for head and navigation bar in the main layout file The integration of partials for the head and navigation bar is implemented in the main layout file, 'main.handlebars', to ensure consistent design and functionality across all pages.", "Use of specific styling and content in view files Specific styling and content are added to the view files, such as 'home.handlebars', 'about.handlebars', '404.handlebars', and '500.handlebars', to provide unique displays for each URL.", "Configuring the server to run on port 3000 The chapter sets the server to run on port 3000 using the command 'app.set('port', process.env.PORT || 3000)'.", "Setting up the main layout file with Bootstrap The process of setting up the main layout file 'main.handlebars' using Bootstrap is described, including referencing the navigation bar, defining the HTML structure, adding a script tag for Bootstrap, and setting the default layout as 'main'.", "Accessing the public directory and importing images The method 'app.use(express.static(__dirname + '/public'))' is used to access the public directory and import the images folder for use in the main navigation bar."]}, {'end': 1386.61, 'segs': [{'end': 1178.584, 'src': 'embed', 'start': 1150.796, 'weight': 2, 'content': [{'end': 1155.637, 'text': 'which is basically just going to match up certain actions with certain URLs that are typed into our browser.', 'start': 1150.796, 'duration': 4.841}, {'end': 1162.539, 'text': "So we're going to go app.git and basically, what app.git gets is it's going to receive a path as well as a function,", 'start': 1155.777, 'duration': 6.762}, {'end': 1165.18, 'text': "and this is what's going to be known as defining our route.", 'start': 1162.539, 'duration': 2.641}, {'end': 1171.301, 'text': 'So our base directory is how we define this right here and then we would define function inside of there.', 'start': 1165.38, 'duration': 5.921}, {'end': 1178.584, 'text': "Now the path isn't going to be case sensitive, so if this was something like about or about, They would be exactly the same,", 'start': 1171.581, 'duration': 7.003}], 'summary': 'Defining routes in app.git to match actions with urls.', 'duration': 27.788, 'max_score': 1150.796, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI1150796.jpg'}, {'end': 1371.294, 'src': 'embed', 'start': 1335.769, 'weight': 0, 'content': [{'end': 1344.219, 'text': 'But everything else is basically set up and you can see right here that it went and automatically put in our navigation bar and will fit in all the other different things we have right here.', 'start': 1335.769, 'duration': 8.45}, {'end': 1352.249, 'text': "So now we basically just sit here and go and create continual different routes until we've covered all of them and all the capabilities we want to add.", 'start': 1344.42, 'duration': 7.829}, {'end': 1352.729, 'text': 'all right.', 'start': 1352.429, 'duration': 0.3}, {'end': 1358.49, 'text': "so now let's go in here and actually set up about so that it works, and we're basically going to do exactly the same thing here again.", 'start': 1352.729, 'duration': 5.761}, {'end': 1359.691, 'text': 'so we might as well copy this.', 'start': 1358.49, 'duration': 1.201}, {'end': 1365.792, 'text': "so we'll throw and throw that inside of there, except we're going to type about inside of here instead and about right here,", 'start': 1359.691, 'duration': 6.101}, {'end': 1369.033, 'text': 'which once again is a reference to about dot handlebars.', 'start': 1365.792, 'duration': 3.241}, {'end': 1371.294, 'text': 'so it automatically renders that now, save it.', 'start': 1369.033, 'duration': 2.261}], 'summary': 'Setting up navigation bar and creating routes for all capabilities.', 'duration': 35.525, 'max_score': 1335.769, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI1335769.jpg'}], 'start': 1133.638, 'title': 'Setting up an express application', 'summary': 'Covers the setup of an express application, defining routes, rendering views, and using middleware to create a functional web application. it emphasizes the importance of defining all necessary routes and capabilities for effective functionality.', 'chapters': [{'end': 1386.61, 'start': 1133.638, 'title': 'Express application setup', 'summary': 'Explains setting up an express application, defining routes, rendering views, and using middleware to create a functional web application, with the main concept being to define all the routes and capabilities needed for the application to work effectively.', 'duration': 252.972, 'highlights': ['Setting up an Express application involves defining routes to match certain actions with URLs typed into the browser, with paths being case-insensitive and functions containing request and response objects.', "Rendering views involves pointing to the created view using 'res.render', which transports the HTML defined in the handlebars file, using the main layout and transporting the HTML inside it.", 'Creating continual different routes until all the capabilities needed for the application are covered, and using middleware as an example to enhance the functionality of the application.']}], 'duration': 252.972, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI1133638.jpg', 'highlights': ['Setting up an Express application involves defining routes to match certain actions with URLs typed into the browser, with paths being case-insensitive and functions containing request and response objects.', 'Creating continual different routes until all the capabilities needed for the application are covered, and using middleware as an example to enhance the functionality of the application.', "Rendering views involves pointing to the created view using 'res.render', which transports the HTML defined in the handlebars file, using the main layout and transporting the HTML inside it."]}, {'end': 2282.298, 'segs': [{'end': 1729.306, 'src': 'embed', 'start': 1703.445, 'weight': 3, 'content': [{'end': 1708.508, 'text': "which is going to allow us to parse encoded data whenever we're using post.", 'start': 1703.445, 'duration': 5.063}, {'end': 1714.136, 'text': "So I'm going to jump over here and I'm going to shut down our server and Zoom in here so you can see this a little bit better.", 'start': 1708.788, 'duration': 5.348}, {'end': 1721.221, 'text': "I'm going to go npm install dash dash save body parser and that's going to install for us.", 'start': 1714.156, 'duration': 7.065}, {'end': 1723.742, 'text': 'I might as well go in here and install a couple other things.', 'start': 1721.641, 'duration': 2.101}, {'end': 1729.306, 'text': "I'm also going to show you exactly how we're going to allow the user to upload files.", 'start': 1723.822, 'duration': 5.484}], 'summary': 'Configuring server to parse encoded data and allow file uploads.', 'duration': 25.861, 'max_score': 1703.445, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI1703445.jpg'}, {'end': 2051.587, 'src': 'embed', 'start': 2027.396, 'weight': 4, 'content': [{'end': 2033.218, 'text': 'and then, if we want to send them to our thank you page, after we get all that information from the form that they sent us,', 'start': 2027.396, 'duration': 5.822}, {'end': 2038.161, 'text': 'we could go res redirect and we could go 303 and thank you.', 'start': 2033.218, 'duration': 4.943}, {'end': 2041.762, 'text': 'and if we typed all that in correctly, we should be able to test this out.', 'start': 2038.161, 'duration': 3.601}, {'end': 2043.603, 'text': "first off, let's make sure we're in the right directory.", 'start': 2041.762, 'duration': 1.841}, {'end': 2049.085, 'text': "yes, we are, and then we're going to come in here and restart our server And I have a little bit of an error.", 'start': 2043.603, 'duration': 5.482}, {'end': 2051.587, 'text': 'Over here I named my file credentials.', 'start': 2049.446, 'duration': 2.141}], 'summary': 'Troubleshooting server error after file naming issue', 'duration': 24.191, 'max_score': 2027.396, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2027396.jpg'}, {'end': 2225.198, 'src': 'embed', 'start': 2184.137, 'weight': 0, 'content': [{'end': 2192.243, 'text': "so that is that guy, and we're going to save that in our views directory once again as file upload, going to be the name for it,", 'start': 2184.137, 'duration': 8.106}, {'end': 2193.784, 'text': 'as well as handlebars.', 'start': 2192.663, 'duration': 1.121}, {'end': 2196.226, 'text': "And that's going to import that, and we're going to save it.", 'start': 2194.084, 'duration': 2.142}, {'end': 2203.07, 'text': 'So we can close that out and go into the ExpressTut.js file again and handle those file uploads.', 'start': 2196.466, 'duration': 6.604}, {'end': 2207.573, 'text': "To do so, we're going to go app.get again because it's going to be a route we're going to be dealing with.", 'start': 2203.53, 'duration': 4.043}, {'end': 2214.478, 'text': "And whenever they go to file, upload, URL, we're going to go function, request, resource.", 'start': 2207.873, 'duration': 6.605}, {'end': 2217.76, 'text': "We're going to go and get a date, being the current date.", 'start': 2214.818, 'duration': 2.942}, {'end': 2220.642, 'text': "And we'll be able to store these a little bit better later on.", 'start': 2218.12, 'duration': 2.522}, {'end': 2223.337, 'text': 'under usernames and dates and things like that.', 'start': 2221.095, 'duration': 2.242}, {'end': 2225.198, 'text': 'And res render.', 'start': 2223.737, 'duration': 1.461}], 'summary': 'Creating a file upload route with express to handle file uploads and get the current date.', 'duration': 41.061, 'max_score': 2184.137, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2184137.jpg'}], 'start': 1386.61, 'title': 'Express middleware and error handling in express.js', 'summary': 'Introduces the concept of middleware in express, demonstrating its usage to log url requests, handle non-existent urls, and creating custom error messages. it also showcases examples of using middleware in express.js, including handling error pages, installing and using middleware packages, creating a user contact form, processing form data, and allowing file uploads.', 'chapters': [{'end': 1557.233, 'start': 1386.61, 'title': 'Express middleware and error handling', 'summary': 'Introduces the concept of middleware in express, demonstrating its usage to log url requests and handle non-existent urls with detailed code examples, demonstrating the logging of errors and the creation of custom error messages.', 'duration': 170.623, 'highlights': ['The chapter introduces the concept of middleware in Express, demonstrating its usage to log URL requests and handle non-existent URLs with detailed code examples, demonstrating the logging of errors and the creation of custom error messages.', 'The middleware function is created using app.use instead of app.get, allowing for the logging of URL requests and the handling of non-existent URLs, showcasing the use of request object, response object, and next function.', 'The code example illustrates the logging of URL requests, utilizing console.log to display the URL being looked for and using the request object to retrieve the URL, providing a clear understanding of how middleware functions operate.', 'The demonstration includes handling non-existent URLs by logging an error message and throwing a new error using the throw new error statement, showcasing error handling within the middleware function.']}, {'end': 2282.298, 'start': 1557.233, 'title': 'Middleware examples in express.js', 'summary': 'Demonstrates the use of middleware in express.js, including handling error pages, installing and using middleware packages such as body-parser, formidable, and cookie-parser, creating a form for user contact, processing form data, and allowing file uploads to the server.', 'duration': 725.065, 'highlights': ['Demonstrating the use of middleware for error pages The chapter covers the creation of 404 and 500 error pages using middleware, specifying status codes, rendering corresponding handlebars files, and restarting the server to observe the error handling.', 'Installation and usage of middleware packages The chapter explains the installation of body-parser, formidable, and cookie-parser middleware packages, highlighting their roles in parsing encoded data, enabling file uploads, and managing cookies for security purposes.', 'Creation of a form for user contact The chapter illustrates the creation of a contact form using handlebars, with a focus on generating CSRF tokens for security, rendering a thank you page upon form submission, and processing the form data for display and potential database storage.']}], 'duration': 895.688, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI1386610.jpg', 'highlights': ['The chapter introduces the concept of middleware in Express, demonstrating its usage to log URL requests and handle non-existent URLs with detailed code examples, demonstrating the logging of errors and the creation of custom error messages.', 'Demonstrating the use of middleware for error pages The chapter covers the creation of 404 and 500 error pages using middleware, specifying status codes, rendering corresponding handlebars files, and restarting the server to observe the error handling.', 'Installation and usage of middleware packages The chapter explains the installation of body-parser, formidable, and cookie-parser middleware packages, highlighting their roles in parsing encoded data, enabling file uploads, and managing cookies for security purposes.', 'Creation of a form for user contact The chapter illustrates the creation of a contact form using handlebars, with a focus on generating CSRF tokens for security, rendering a thank you page upon form submission, and processing the form data for display and potential database storage.', 'The middleware function is created using app.use instead of app.get, allowing for the logging of URL requests and the handling of non-existent URLs, showcasing the use of request object, response object, and next function.']}, {'end': 3119.603, 'segs': [{'end': 2635.071, 'src': 'embed', 'start': 2602.105, 'weight': 0, 'content': [{'end': 2606.928, 'text': "and since we don't have a database all set up, I'm going to store everything in our memory store.", 'start': 2602.105, 'duration': 4.823}, {'end': 2612.292, 'text': "So what we're going to need to do, come over here, shut down our server once again, and I'm going to need to go MPM.", 'start': 2606.948, 'duration': 5.344}, {'end': 2618.934, 'text': "install save express session and that's going to install that for us.", 'start': 2613.172, 'duration': 5.762}, {'end': 2619.515, 'text': 'there we go.', 'start': 2618.934, 'duration': 0.581}, {'end': 2620.575, 'text': 'everything looks good.', 'start': 2619.515, 'duration': 1.06}, {'end': 2625.977, 'text': 'what this is going to allow us to do is store the session ID in a cookie and the session data on the server.', 'start': 2620.575, 'duration': 5.402}, {'end': 2635.071, 'text': "now, like I said, this works for development that wouldn't necessarily work in a regular server, because if the server is shut down,", 'start': 2625.977, 'duration': 9.094}], 'summary': 'Storing session data in memory store for development using mpm install save express session.', 'duration': 32.966, 'max_score': 2602.105, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2602105.jpg'}, {'end': 2738.602, 'src': 'embed', 'start': 2709.736, 'weight': 3, 'content': [{'end': 2712.097, 'text': "So that's what we're using for security reasons, of course.", 'start': 2709.736, 'duration': 2.361}, {'end': 2713.317, 'text': 'So cookie secret.', 'start': 2712.417, 'duration': 0.9}, {'end': 2714.738, 'text': "And that's all we need to do there.", 'start': 2713.618, 'duration': 1.12}, {'end': 2717.945, 'text': "Now I'm going to provide you another example of middleware.", 'start': 2715.083, 'duration': 2.862}, {'end': 2722.169, 'text': "So we're going to go app use and create our function inside of here.", 'start': 2717.965, 'duration': 4.204}, {'end': 2724.551, 'text': 'Request, resource, next.', 'start': 2722.189, 'duration': 2.362}, {'end': 2731.457, 'text': "And what I'm going to do here is I'm going to set it up so that it's going to track how many times the user has gone to a specific page.", 'start': 2725.031, 'duration': 6.426}, {'end': 2738.602, 'text': "So it's just a nice easy example but it's also going to show you how sessions can be used to track users for example.", 'start': 2731.517, 'duration': 7.085}], 'summary': 'Middleware can track user visits, enhancing security and user experience.', 'duration': 28.866, 'max_score': 2709.736, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2709736.jpg'}, {'end': 2800.306, 'src': 'embed', 'start': 2773.464, 'weight': 2, 'content': [{'end': 2779.669, 'text': "And then in our views array, like I said, we're going to use the path name or the URL as the key.", 'start': 2773.464, 'duration': 6.205}, {'end': 2785.994, 'text': "And then we'll go into views and set it the total number of times that they've actually gone to that page.", 'start': 2779.969, 'duration': 6.025}, {'end': 2791.399, 'text': "And that's either going to be zero to start off and we're going to increment it each time we go through.", 'start': 2786.355, 'duration': 5.044}, {'end': 2795.062, 'text': "So each time they go to the page, we're going to increment that over and over and over again.", 'start': 2791.619, 'duration': 3.443}, {'end': 2800.306, 'text': 'And then of course, next, because this is middleware so that it continues down through the pipeline, if we need to do anything else.', 'start': 2795.222, 'duration': 5.084}], 'summary': 'Using path name/url as key, increment total views for each page.', 'duration': 26.842, 'max_score': 2773.464, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2773464.jpg'}, {'end': 2812.367, 'src': 'heatmap', 'start': 2773.464, 'weight': 0.952, 'content': [{'end': 2779.669, 'text': "And then in our views array, like I said, we're going to use the path name or the URL as the key.", 'start': 2773.464, 'duration': 6.205}, {'end': 2785.994, 'text': "And then we'll go into views and set it the total number of times that they've actually gone to that page.", 'start': 2779.969, 'duration': 6.025}, {'end': 2791.399, 'text': "And that's either going to be zero to start off and we're going to increment it each time we go through.", 'start': 2786.355, 'duration': 5.044}, {'end': 2795.062, 'text': "So each time they go to the page, we're going to increment that over and over and over again.", 'start': 2791.619, 'duration': 3.443}, {'end': 2800.306, 'text': 'And then of course, next, because this is middleware so that it continues down through the pipeline, if we need to do anything else.', 'start': 2795.222, 'duration': 5.084}, {'end': 2803.321, 'text': 'And then what we need to do, remember this is middleware.', 'start': 2800.819, 'duration': 2.502}, {'end': 2806.163, 'text': 'This is just going to increment every time we go to our URL.', 'start': 2803.361, 'duration': 2.802}, {'end': 2812.367, 'text': 'If we want to actually display that information on the screen whenever they go to it, we need to handle that.', 'start': 2806.283, 'duration': 6.084}], 'summary': 'Using path name as key in views array, incrementing total views each time user visits the page.', 'duration': 38.903, 'max_score': 2773.464, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2773464.jpg'}, {'end': 2909.777, 'src': 'embed', 'start': 2881.233, 'weight': 1, 'content': [{'end': 2884.015, 'text': 'And I could set this up that it would work for any of the other pages.', 'start': 2881.233, 'duration': 2.782}, {'end': 2887.916, 'text': "So that's how sessions work in a simplified type of manner.", 'start': 2884.495, 'duration': 3.421}, {'end': 2889.577, 'text': "Now I'm going to jump in here for the final thing.", 'start': 2887.976, 'duration': 1.601}, {'end': 2894.659, 'text': "I'm going to show you how to both read files as well as how to write files using Express.", 'start': 2889.597, 'duration': 5.062}, {'end': 2895.8, 'text': "I'm going to come in here.", 'start': 2895.04, 'duration': 0.76}, {'end': 2898.721, 'text': "I'm going to need to download another module.", 'start': 2895.82, 'duration': 2.901}, {'end': 2900.142, 'text': 'Control C, get rid of that.', 'start': 2898.981, 'duration': 1.161}, {'end': 2902.854, 'text': "And that's going to be the file system module.", 'start': 2900.509, 'duration': 2.345}, {'end': 2906.322, 'text': "So I'm going to have to go npm, install, save.", 'start': 2903.135, 'duration': 3.187}, {'end': 2909.777, 'text': 'Make sure you do put it before the 404 right here.', 'start': 2906.815, 'duration': 2.962}], 'summary': 'Demonstrating file handling and session setup in express.', 'duration': 28.544, 'max_score': 2881.233, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2881233.jpg'}, {'end': 2974.189, 'src': 'embed', 'start': 2949.479, 'weight': 5, 'content': [{'end': 2956.582, 'text': "make sure, if there's an error, I handle that and then data is actually going to contain the file information and we'll just say,", 'start': 2949.479, 'duration': 7.103}, {'end': 2962.666, 'text': 'if there was an error of some type, return console error and then print out whatever the error was.', 'start': 2956.582, 'duration': 6.084}, {'end': 2967.647, 'text': "Otherwise, if there wasn't an error, that means that we received the data from our file.", 'start': 2963.326, 'duration': 4.321}, {'end': 2970.868, 'text': "So we'll say we want to print that information out on the screen.", 'start': 2967.867, 'duration': 3.001}, {'end': 2974.189, 'text': "We'll say res send, something like the file.", 'start': 2970.908, 'duration': 3.281}], 'summary': 'Handle errors and print file data if no error.', 'duration': 24.71, 'max_score': 2949.479, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2949479.jpg'}, {'end': 3119.603, 'src': 'embed', 'start': 3107.449, 'weight': 6, 'content': [{'end': 3114.136, 'text': "Like I mentioned before, in the next part of the tutorial, I'll cover MongoDB, and then we'll create a real Express application.", 'start': 3107.449, 'duration': 6.687}, {'end': 3117.881, 'text': 'Hope this helped a lot, and please leave your questions and comments below.', 'start': 3114.276, 'duration': 3.605}, {'end': 3119.603, 'text': 'Otherwise, until next time.', 'start': 3118.481, 'duration': 1.122}], 'summary': 'Covering mongodb and creating a real express application in the next tutorial.', 'duration': 12.154, 'max_score': 3107.449, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI3107449.jpg'}], 'start': 2282.858, 'title': 'Handling file upload, cookies, and sessions in express', 'summary': 'Covers handling file upload with detailed information about parsing the uploaded file and handling potential errors, setting, listing, and deleting cookies, and storing and tracking session information using middleware. it also explains how to read and write files using express, demonstrating usage of the file system module to read and write files, handle errors, and display file content, culminating in a brief overview of express and a preview of upcoming topics.', 'chapters': [{'end': 2881.193, 'start': 2282.858, 'title': 'Handling file upload, cookies, and sessions', 'summary': 'Covers handling file upload with detailed information about parsing the uploaded file and handling potential errors, setting, listing, and deleting cookies, and storing and tracking session information using middleware.', 'duration': 598.335, 'highlights': ['Handling file upload Details the process of handling file upload, parsing the uploaded file, and handling potential errors.', 'Setting, listing, and deleting cookies Explains the process of setting, listing, and deleting cookies, including setting cookie values, outputting cookie information, and deleting specific cookies.', 'Storing and tracking session information using middleware Describes the use of middleware to store and track session information, including tracking user visits to specific pages and displaying the visit count.']}, {'end': 3119.603, 'start': 2881.233, 'title': 'Working with files in express', 'summary': 'Explains how to read and write files using express, demonstrating usage of the file system module to read and write files, handle errors, and display file content, culminating in a brief overview of express and a preview of upcoming topics.', 'duration': 238.37, 'highlights': ['Explaining how to read and write files using Express The chapter covers the process of reading and writing files in Express, including the usage of the file system module and handling errors when reading and writing files.', 'Demonstrating usage of the file system module to read and write files The transcript details the demonstration of using the file system module in Express to read and write files, showcasing the process of referring to file directories, handling errors, and displaying file content.', 'Handling errors and displaying file content The explanation includes handling errors when reading and writing files, such as printing error messages to the console, and displaying file content on the screen.', 'Brief overview of Express and preview of upcoming topics The chapter concludes with a brief overview of Express and a preview of upcoming topics, including the mention of covering MongoDB and creating a real Express application in the next part of the tutorial.']}], 'duration': 836.745, 'thumbnail': 'https://coursnap.oss-ap-southeast-1.aliyuncs.com/video-capture/xDCKcNBFsuI/pics/xDCKcNBFsuI2282858.jpg', 'highlights': ['Handling file upload Details the process of handling file upload, parsing the uploaded file, and handling potential errors.', 'Explaining how to read and write files using Express The chapter covers the process of reading and writing files in Express, including the usage of the file system module and handling errors when reading and writing files.', 'Storing and tracking session information using middleware Describes the use of middleware to store and track session information, including tracking user visits to specific pages and displaying the visit count.', 'Setting, listing, and deleting cookies Explains the process of setting, listing, and deleting cookies, including setting cookie values, outputting cookie information, and deleting specific cookies.', 'Demonstrating usage of the file system module to read and write files The transcript details the demonstration of using the file system module in Express to read and write files, showcasing the process of referring to file directories, handling errors, and displaying file content.', 'Handling errors and displaying file content The explanation includes handling errors when reading and writing files, such as printing error messages to the console, and displaying file content on the screen.', 'Brief overview of Express and preview of upcoming topics The chapter concludes with a brief overview of Express and a preview of upcoming topics, including the mention of covering MongoDB and creating a real Express application in the next part of the tutorial.']}], 'highlights': ['The tutorial plan includes an overview of Express, covering databases, and creating a big application in three parts.', 'Express Node.js framework provides capabilities for developing robust web applications using middleware.', 'The chapter provides detailed instructions for installing Node.js on both Windows and Mac OS, ensuring accessibility for different users.', "The process involves using the 'npm init' command to create a package.json file, specifying entry point and other details, and verifying the creation of the file within the directory.", 'The chapter provides a step-by-step guide to installing Express and Node.js on Windows and Macintosh, including setting up the directory structure, creating files, and using command prompts.', "Creation of different view files for URLs The user creates separate handlebars files for 'home', 'about', '404', and '500' to be displayed on different URLs.", "Integration of partials for head and navigation bar in the main layout file The integration of partials for the head and navigation bar is implemented in the main layout file, 'main.handlebars', to ensure consistent design and functionality across all pages.", 'Setting up an Express application involves defining routes to match certain actions with URLs typed into the browser, with paths being case-insensitive and functions containing request and response objects.', 'The chapter introduces the concept of middleware in Express, demonstrating its usage to log URL requests and handle non-existent URLs with detailed code examples, demonstrating the logging of errors and the creation of custom error messages.', 'Handling file upload Details the process of handling file upload, parsing the uploaded file, and handling potential errors.', 'Explaining how to read and write files using Express The chapter covers the process of reading and writing files in Express, including the usage of the file system module and handling errors when reading and writing files.', 'Storing and tracking session information using middleware Describes the use of middleware to store and track session information, including tracking user visits to specific pages and displaying the visit count.', 'Setting, listing, and deleting cookies Explains the process of setting, listing, and deleting cookies, including setting cookie values, outputting cookie information, and deleting specific cookies.']}