WEBVTT 00:00.840 --> 00:02.280 Hi everyone. 00:02.640 --> 00:12.000 In this video let's add the validation in the next JS. 00:13.360 --> 00:13.880 Okay. 00:14.480 --> 00:23.280 For example, inside the authentication right here when we sign up and when we sign, we need to add 00:23.280 --> 00:27.960 a little bit of validation into the video. 00:28.320 --> 00:28.800 Okay. 00:29.560 --> 00:36.520 First of all, inside the signup video we need to add a bit of validation. 00:36.960 --> 00:46.840 First of all right here we need to mask for example like firstly let me go to the validation bit from 00:46.840 --> 00:53.680 the list over here and make sure we install this package. 00:56.200 --> 01:01.200 And let's scroll down a little bit in order to enable Enabled validation. 01:01.560 --> 01:03.840 We need to use this line right here. 01:04.760 --> 01:05.520 Let me copy. 01:06.040 --> 01:07.000 Isn't mine. 01:07.040 --> 01:08.000 Not the. 01:08.000 --> 01:10.240 Yes, we will enable us. 01:15.960 --> 01:17.840 Okay, so you see this line? 01:17.880 --> 01:21.240 If not, it will not work in here. 01:22.240 --> 01:25.720 We can use some validation rule. 01:25.720 --> 01:28.320 For example, if mail. 01:31.520 --> 01:33.200 Is not empty. 01:33.200 --> 01:36.960 Is or is emails. 01:37.040 --> 01:37.560 Right? 01:39.640 --> 01:40.600 Let me do that. 01:40.600 --> 01:45.360 For example inside here I will use the is not empty. 01:46.520 --> 01:49.480 We will import not from class validator. 01:52.680 --> 02:00.000 Is email over and over here we is not apply also. 02:01.090 --> 02:02.090 now let's say. 02:04.450 --> 02:05.450 It's a missile. 02:06.490 --> 02:11.050 Furthermore, if I remove the name, you can say it will or not. 02:11.970 --> 02:21.050 If I say, well, we will log the message error and bad request error will be name should not be empty. 02:21.170 --> 02:22.730 Very very cool right? 02:23.930 --> 02:29.090 And for more detail you can always check out this thing. 02:36.010 --> 02:38.370 You can say you can read more about us. 02:40.810 --> 02:45.930 It will have something like here okay. 02:46.570 --> 02:53.090 It will also provides most of the validator. 02:53.330 --> 02:57.210 We can use that without need to customize. 03:02.810 --> 03:05.930 And of course we can customize the message. 03:06.450 --> 03:12.330 For example, right here both the object with the message okay. 03:14.930 --> 03:20.090 But right now I think the message right here, it will be very enough for both of case. 03:20.570 --> 03:23.690 I will not customize anything. 03:27.730 --> 03:33.650 And let me go to the side also we need the user is email. 03:41.490 --> 03:44.570 And is not. 03:46.970 --> 03:48.570 Empty okay. 03:51.890 --> 03:54.930 Furthermore if I put the invalid email. 03:59.500 --> 04:03.940 Let me say now you can say email me an email. 04:04.260 --> 04:04.820 Right. 04:09.340 --> 04:09.900 So. 04:15.140 --> 04:18.060 I think that will be enough. 04:18.780 --> 04:21.900 And we will ask one more thing. 04:22.860 --> 04:31.180 Is that the authentication service, when we sign up we want to make sure the email should be unique. 04:31.420 --> 04:31.940 Right. 04:35.940 --> 04:36.420 Okay. 04:37.380 --> 04:42.660 So right now let me show you how we can do that. 04:44.220 --> 04:49.740 I will just use my email gateway this dot. 04:52.540 --> 04:59.300 User module .5115 find my email? 04:59.580 --> 05:00.020 Okay. 05:00.060 --> 05:06.700 If we have a user by email, we will throw. 05:09.660 --> 05:12.380 New bug requests, etc.. 05:16.060 --> 05:17.140 You may email. 05:19.860 --> 05:24.900 Already in use like does. 05:30.780 --> 05:31.660 Let me sign up. 05:37.820 --> 05:40.660 Now email already in use. 05:40.700 --> 05:41.460 Very good. 05:45.340 --> 05:49.420 So I think that will be enough for the validation. 05:50.220 --> 05:54.580 And for more detail please check out the documentation. 05:55.020 --> 05:58.740 Okay, I will see you in the next one.