WEBVTT 00:03.910 --> 00:05.380 Hey, did everyone share? 00:05.380 --> 00:09.730 And in this video we're going to talk about modeling of the application, but before that, we should 00:09.730 --> 00:10.930 know what we are building up. 00:10.930 --> 00:13.080 So let's go ahead and talk a little bit on that. 00:13.090 --> 00:16.690 Now, our major goal is to design an authentication system. 00:16.690 --> 00:21.160 Now what this authentication system is protecting, we are not worried about that part. 00:21.160 --> 00:27.040 Maybe it's an e-commerce store, maybe it's an AE application, or maybe it's just an API which nobody 00:27.040 --> 00:27.550 can access. 00:27.550 --> 00:31.750 If he's not logged in, maybe are using a GitHub searcher or something, anything like that. 00:32.110 --> 00:35.740 Now, authentication system is not very complex. 00:35.740 --> 00:41.380 It can be from the perspective of what you are designing, but on a very basic level it has just three 00:41.380 --> 00:42.010 components. 00:42.010 --> 00:46.000 It has a registered component, a login component and some restricted routes. 00:46.300 --> 00:48.280 Now what does it mean by that? 00:48.280 --> 00:52.840 A user will be able to register into your system by providing all the details that you're asking him 00:52.840 --> 00:56.320 once he has successfully registered means he's into the database now. 00:56.320 --> 00:59.500 Whenever he comes the next time, he don't need to provide all that information. 00:59.500 --> 01:03.040 Rather, he can enter into our system by providing less information. 01:03.040 --> 01:06.760 That less information can be just user name, password or email password. 01:06.760 --> 01:12.190 However you are designing your application further down the road, there can be some restricted routes, 01:12.190 --> 01:16.870 the routes that nobody all can access, routes that only logged in user can access. 01:16.870 --> 01:23.020 Now, further down this road, authentication can also become some of the more complex system you might 01:23.020 --> 01:26.830 want to go for authentication as well as some validation check as well. 01:26.830 --> 01:29.650 For example, some routes can be open for everyone. 01:29.650 --> 01:35.620 Some routes can be open only for admin, some route can be open for managers and some routes for users, 01:35.620 --> 01:37.240 and some are not for all everyone. 01:37.240 --> 01:41.890 So there is authentication as well as a little bit of the validation that can be done. 01:41.890 --> 01:44.560 So again, it can be complex, but we'll keep it short. 01:44.800 --> 01:50.920 Now in this one, since this is not a register model or a login model, we call this one as user because 01:50.920 --> 01:52.690 that's all it is governing up. 01:52.690 --> 01:57.700 So I don't expect you to just go ahead of me in this section because there's so much detail and so much 01:57.700 --> 02:01.330 to talk up here, and we won't be using any of these models. 02:01.330 --> 02:05.650 We will be using our same free mirror or any other such mind mapping application. 02:05.650 --> 02:10.270 So go ahead and create a free one up here, the empty one, and we're going to go ahead and start with 02:10.270 --> 02:10.870 this one. 02:10.960 --> 02:14.590 So we're going to call this one as simply auth system. 02:14.590 --> 02:16.930 There we go, if I can write that. 02:17.140 --> 02:17.890 There we go. 02:18.460 --> 02:20.590 So this is the old system that we are having. 02:20.590 --> 02:22.120 Let's go ahead and move it up here. 02:22.120 --> 02:26.170 Now, this old system or any application that you're designing, maybe it's an E commerce. 02:26.170 --> 02:30.940 It might have other components, like there can be controllers, there can be routes and a whole bunch 02:30.940 --> 02:31.720 of other things. 02:32.080 --> 02:33.640 We're going to go very short in this one. 02:33.640 --> 02:38.080 We won't be separating our controllers and everything routes, at least in this section later on for 02:38.080 --> 02:38.560 sure. 02:38.560 --> 02:40.300 But let's go ahead and add this one. 02:40.300 --> 02:45.040 So in this one, obviously, we'll have a model route that a lot of modeling can be done. 02:45.040 --> 02:47.110 And we don't need you as of now. 02:47.260 --> 02:53.170 And further down the road in the model, we are going to have multiple models, maybe, maybe not sure. 02:53.560 --> 02:55.570 So we're going to call this one as user. 02:55.960 --> 02:57.730 That is fine now. 02:58.030 --> 02:59.560 Okay, go back up here. 02:59.680 --> 03:02.020 So now how can I scroll this? 03:03.680 --> 03:03.890 Okay. 03:03.890 --> 03:05.090 We can move this one here. 03:05.090 --> 03:10.100 So once we have this model defined and we're going to call this user again, it's not usually called 03:10.100 --> 03:15.280 as users, it's called as user because this is defined as how single entity will look like. 03:15.290 --> 03:16.730 Again, these are recommendations. 03:16.760 --> 03:19.820 Nobody's stopping you to call it as users, but it is recommended. 03:19.820 --> 03:24.500 In fact, people will say that, hey, this should be something like user, but this is totally up to 03:24.500 --> 03:26.090 you however you want to define it. 03:26.090 --> 03:28.490 And usually models have first uppercase letter. 03:28.610 --> 03:33.950 Now on top of that, once this is all done, I you can actually go ahead and click on Add Button and 03:33.950 --> 03:40.430 can say that, hey, this will have a first name, something like this first name and then you can add 03:40.430 --> 03:41.180 last name. 03:41.180 --> 03:45.980 But I have found that if I use this kind of mind mapping, it actually creates so many of the threads. 03:45.980 --> 03:51.680 So what I do now is I go ahead and delete all of this, and in fact, I just put up a sticky note right 03:51.680 --> 03:52.280 in front of it. 03:52.280 --> 03:54.800 Probably this is sticky note, this color is good. 03:54.800 --> 03:57.680 And I'm going to say, hey, I need your first name. 03:57.680 --> 04:00.980 I will be needing a last name. 04:01.010 --> 04:03.230 I will be needing probably country. 04:03.650 --> 04:05.180 I will be needing email. 04:05.180 --> 04:08.420 Of course I will be needing password from the user as well. 04:08.420 --> 04:11.330 And for my personal I will be using a token. 04:11.330 --> 04:17.330 Now while we are using token because token is a unique information which will be sent to the user and 04:17.330 --> 04:21.470 we'll talk more about how we can send the this token and how it is being generated, all of that. 04:21.470 --> 04:26.210 But remember, this is just a unique information that we can send to the user that if you want to access 04:26.210 --> 04:30.290 any protected route, you have to use this token, you don't have to use your ID and password again 04:30.290 --> 04:33.440 and again, and we can also kind of automate that system. 04:33.440 --> 04:35.810 So this is how my user will look like. 04:35.810 --> 04:38.930 Now, it can be more complex as well, but this is all what we have. 04:38.930 --> 04:42.260 So again, this is a really nice way of handling that notice here. 04:42.260 --> 04:46.340 I haven't mentioned that the first name should be String or the country should be String or something 04:46.340 --> 04:48.560 like that or password should be like a combination. 04:48.560 --> 04:49.430 Now we don't do that. 04:49.430 --> 04:50.720 We usually do that in the modeling. 04:50.720 --> 04:53.420 This is just a basic overview of how it will look like. 04:53.420 --> 04:56.960 Now, again, this is a little bit of a rudimentary way of doing it. 04:56.960 --> 05:01.310 In the professional versions, we actually use all the tools that helps us to build all of that and 05:01.310 --> 05:02.540 have a visual of that. 05:02.540 --> 05:04.160 But this is still a good visual. 05:04.400 --> 05:06.560 Okay, now this is all done and settled up. 05:06.560 --> 05:10.790 It's a good time that we go ahead and replicate this into the code file. 05:10.790 --> 05:17.360 So finally, yes, finally we are going onto creating our application and let's go ahead and use Mongoose 05:17.390 --> 05:20.840 as well as learn how we can design this a schema onto the code files. 05:20.840 --> 05:22.880 Let's go back into the code section.