1 00:00:00,230 --> 00:00:00,590 All right. 2 00:00:00,590 --> 00:00:07,610 And up next, let's set up the validation layer so everything is cool if we're getting the values we're 3 00:00:07,610 --> 00:00:08,090 looking for. 4 00:00:08,090 --> 00:00:15,830 But of course, at the moment, I can skip the name, for example, send over here and I'll still create 5 00:00:15,830 --> 00:00:16,730 the user. 6 00:00:17,000 --> 00:00:21,560 And in order to fix it, we want to navigate to our middleware. 7 00:00:21,560 --> 00:00:30,350 And I strongly suggest to at least try setting it up yourself and hopefully by the end you'll see that 8 00:00:30,350 --> 00:00:33,290 it's actually not as difficult as it seems. 9 00:00:33,290 --> 00:00:39,380 Yes, there is technically a lot of code, but you can clearly see that there's a bunch of repetition 10 00:00:39,380 --> 00:00:40,190 as well. 11 00:00:40,520 --> 00:00:44,120 And effectively I want to come up with a name first. 12 00:00:44,180 --> 00:00:51,290 In my case, I'm going to go with validate, register input and yes, we want to export since again, 13 00:00:51,290 --> 00:00:52,790 we'll set it up as middleware. 14 00:00:53,180 --> 00:00:55,700 So validate register. 15 00:00:56,740 --> 00:01:00,880 Input and that one is equal to our function. 16 00:01:01,680 --> 00:01:03,750 Then we want to pass in our array. 17 00:01:03,750 --> 00:01:07,170 And then one by one, let's go down the list. 18 00:01:07,410 --> 00:01:13,530 Like I said, always, always, always use your model as the guideline. 19 00:01:13,650 --> 00:01:18,180 So for some reason I'm showing you the job model, but actually I want to look at this one. 20 00:01:18,180 --> 00:01:23,580 So we have name, email, password, and we also have last name, location and role. 21 00:01:23,610 --> 00:01:25,470 Now don't worry about the role. 22 00:01:25,500 --> 00:01:31,620 This one will handle a little bit differently, but these ones, at least the basic setup is going to 23 00:01:31,620 --> 00:01:34,950 be almost the same like we have for the job. 24 00:01:34,980 --> 00:01:37,560 We just need to provide the proper names. 25 00:01:37,560 --> 00:01:40,410 So in here, what is the first one? 26 00:01:40,410 --> 00:01:41,430 Well, name? 27 00:01:41,430 --> 00:01:42,090 Correct. 28 00:01:42,120 --> 00:01:44,190 What are the conditions I want to set up? 29 00:01:44,190 --> 00:01:46,560 Well, first of all, it shouldn't be empty. 30 00:01:46,890 --> 00:01:48,240 That's kind of a straightforward. 31 00:01:48,390 --> 00:01:48,870 Right. 32 00:01:48,900 --> 00:01:53,760 So then let's add also with message and we'll say name is required. 33 00:01:54,060 --> 00:01:54,780 Okay, good. 34 00:01:54,780 --> 00:01:55,530 Let's save that. 35 00:01:55,530 --> 00:01:58,290 And then like I said, let's go down the list. 36 00:01:58,890 --> 00:02:04,150 The same is going to be for password, the same for location and also the email. 37 00:02:04,150 --> 00:02:09,610 And yes, once we have that one in place, we'll add some additional features. 38 00:02:09,610 --> 00:02:14,500 So one, two, three and then in here, essentially just change the values. 39 00:02:14,500 --> 00:02:15,700 That's all you have to do. 40 00:02:15,730 --> 00:02:16,390 Email. 41 00:02:16,390 --> 00:02:17,740 Yep, same deal. 42 00:02:18,040 --> 00:02:24,040 Then you want to do the same thing for the password and also for. 43 00:02:25,250 --> 00:02:25,730 Location. 44 00:02:25,730 --> 00:02:26,030 Okay. 45 00:02:26,030 --> 00:02:28,190 That's the straight up setup. 46 00:02:28,250 --> 00:02:32,330 Then when it comes to email, what else we want to check? 47 00:02:32,900 --> 00:02:34,440 Well, two things. 48 00:02:34,460 --> 00:02:37,760 We first want to check whether the. 49 00:02:38,740 --> 00:02:42,670 Email is actually valid email and what's super, super nifty. 50 00:02:42,700 --> 00:02:46,810 The middleware we're using actually has a method for that. 51 00:02:46,810 --> 00:02:51,280 So let's look for the email validation and we just want to chain it. 52 00:02:51,580 --> 00:02:53,230 I also want to go with is email. 53 00:02:53,230 --> 00:02:58,420 So whether it is a valid email and then what message I want to use. 54 00:02:58,450 --> 00:03:02,890 I'm going to say invalid email and format. 55 00:03:03,310 --> 00:03:13,240 And lastly, like I said, we also want to check whether there is already a user with the same email. 56 00:03:13,240 --> 00:03:20,540 So I want to make sure that when user registers only the unique email is used. 57 00:03:20,560 --> 00:03:21,880 So how we can do that? 58 00:03:21,880 --> 00:03:26,610 Well, you can probably already guess that we'll be setting up our own custom one. 59 00:03:26,620 --> 00:03:29,770 It is going to be async since we're. 60 00:03:30,350 --> 00:03:33,260 Going to check in our database. 61 00:03:33,260 --> 00:03:41,300 And remember, when it comes to a value in this callback function, essentially we can access whether 62 00:03:41,300 --> 00:03:46,910 that is the parameter or here or in this case, it's going to be the actual email value. 63 00:03:46,910 --> 00:03:50,390 So the general concept doesn't change. 64 00:03:50,420 --> 00:03:53,570 It's just in this case, of course we'll be accessing the email. 65 00:03:53,570 --> 00:03:59,030 And as far as the logic, well we'll need to grab the user. 66 00:03:59,270 --> 00:04:01,010 So let's navigate up. 67 00:04:01,160 --> 00:04:03,830 We're looking for the user and this is coming from. 68 00:04:04,800 --> 00:04:06,780 User model. 69 00:04:06,810 --> 00:04:12,450 Okay, let's scroll down then Let's look for our custom function. 70 00:04:12,660 --> 00:04:16,589 And as far as the logic, I'm going to go here with const user. 71 00:04:17,350 --> 00:04:20,769 And we're going to go with Await then user. 72 00:04:20,779 --> 00:04:23,830 And in this case, I'm going to go with find one. 73 00:04:23,830 --> 00:04:26,830 So not find by ID not find. 74 00:04:26,830 --> 00:04:32,290 I'm going to go with find one which is going to look, for instance, based on some kind of condition 75 00:04:32,390 --> 00:04:34,030 in my case that is email. 76 00:04:34,060 --> 00:04:37,030 So look for user. 77 00:04:37,750 --> 00:04:40,360 Based on this email, whatever is the value. 78 00:04:40,360 --> 00:04:45,490 And of course, if the user is already there, then I want to throw the error. 79 00:04:45,730 --> 00:04:52,090 Again, this is the case where you can throw the regular JavaScript error because again, this will 80 00:04:52,090 --> 00:04:54,310 be handled over here. 81 00:04:54,990 --> 00:04:58,410 Or you can go with custom one, which is going to be my approach. 82 00:04:58,410 --> 00:05:00,210 So let's set up our condition. 83 00:05:00,210 --> 00:05:10,650 So if the user exists, we want to go with throw new bad request error and we'll just write email already. 84 00:05:11,490 --> 00:05:13,020 Exists like so. 85 00:05:13,020 --> 00:05:16,110 And if the user doesn't exist, we don't need to do anything. 86 00:05:16,140 --> 00:05:20,400 Again, this is a sync function, so we don't need to worry about returning. 87 00:05:20,430 --> 00:05:22,320 True or false? 88 00:05:22,320 --> 00:05:27,030 And then when it comes to password, we can also utilize some. 89 00:05:27,420 --> 00:05:30,540 Cool features from our library. 90 00:05:30,540 --> 00:05:35,310 So again, right after with message, we're going to chain one more method. 91 00:05:35,310 --> 00:05:38,400 And in this case I'm going to go for is length. 92 00:05:40,260 --> 00:05:45,870 As far as the options, I'm going to go with men and I'll set it equal to eight. 93 00:05:45,900 --> 00:05:50,730 Now, when it comes to the actual message, again, let's chain it. 94 00:05:51,210 --> 00:05:54,600 Let's say with message and let's just write. 95 00:05:54,600 --> 00:05:58,470 Password must be at least eight characters long. 96 00:05:58,710 --> 00:06:05,390 And the last thing we want to do is to navigate to our routes. 97 00:06:05,760 --> 00:06:07,020 We're looking for. 98 00:06:08,040 --> 00:06:15,330 Auth router and let's look for our validate and register input. 99 00:06:16,060 --> 00:06:19,570 And now let's place it right before register. 100 00:06:19,930 --> 00:06:22,630 So let's set up the come over here. 101 00:06:23,190 --> 00:06:27,570 Now, of course, if you want, you can clean up the database again, because I can tell you right away 102 00:06:27,570 --> 00:06:29,220 that this is going to fail. 103 00:06:29,250 --> 00:06:29,710 Why? 104 00:06:29,730 --> 00:06:32,880 Well, because we have condition right now for this email. 105 00:06:32,880 --> 00:06:37,830 So once I save notice, name is required, but email already exists. 106 00:06:37,830 --> 00:06:44,040 So of course I can go back over here and add John, but I'll still have this email already exists, 107 00:06:44,040 --> 00:06:46,200 so I'll have to change it to something. 108 00:06:46,200 --> 00:06:52,350 And this is the case that yes, while we're creating our first users, basically before we set up the 109 00:06:52,350 --> 00:06:57,300 login, I will also be removing those users from the database because it's just easier. 110 00:06:57,300 --> 00:06:58,860 But I do want to showcase that. 111 00:06:58,920 --> 00:07:02,010 Of course, if I change it to Peter, then everything is correct. 112 00:07:02,040 --> 00:07:04,520 Then we're able to create the user. 113 00:07:04,530 --> 00:07:10,140 Now, as far as the other errors, I'm not sure whether I'll test all of them, but for example, for 114 00:07:10,140 --> 00:07:12,330 the password, check it out. 115 00:07:12,330 --> 00:07:18,450 I can go here and of course it goes with 400 because the user already exists. 116 00:07:18,450 --> 00:07:20,370 So now let me go to my database. 117 00:07:20,610 --> 00:07:25,300 Let me start from scratch because I don't want to keep changing those emails again. 118 00:07:25,300 --> 00:07:27,070 What's really, really awesome. 119 00:07:27,100 --> 00:07:31,510 We can just navigate over here and we can drop everything. 120 00:07:31,510 --> 00:07:34,450 So in this case, of course, we're looking for users. 121 00:07:34,870 --> 00:07:41,110 Then let me go to my Thunder client and like I said, what I'm trying to showcase is that if the password 122 00:07:41,110 --> 00:07:45,070 is going to be less than eight characters, there's going to be an error. 123 00:07:45,070 --> 00:07:49,060 So let me remove the numbers from the password. 124 00:07:50,040 --> 00:07:52,380 Me send and check it out. 125 00:07:52,380 --> 00:07:56,850 Password must be at least eight characters long. 126 00:07:56,940 --> 00:08:04,230 And I think at the very end of this video, I just want to showcase what happens if the syntax for email 127 00:08:04,260 --> 00:08:06,840 does not match what the library is looking for. 128 00:08:06,840 --> 00:08:11,550 So, for example, if I'm going to go with just Gmail. 129 00:08:12,230 --> 00:08:12,920 Check it out. 130 00:08:12,920 --> 00:08:15,250 Invalid email format. 131 00:08:15,260 --> 00:08:17,750 So hopefully this is clear. 132 00:08:17,900 --> 00:08:18,890 One last thing. 133 00:08:18,890 --> 00:08:24,320 It looks like I forgot to add validation for last name field during the video. 134 00:08:24,470 --> 00:08:33,169 So before moving on to the next task, go back to validate, register input and add one more condition 135 00:08:33,530 --> 00:08:34,700 As far as the logic. 136 00:08:34,730 --> 00:08:37,600 It's exactly the same as for location. 137 00:08:37,610 --> 00:08:42,559 Just change the name and make sure field value is camel case. 138 00:08:42,559 --> 00:08:44,030 So last name. 139 00:08:44,210 --> 00:08:49,640 If you need a reference, please utilize the Readme since it contains the complete code.