WEBVTT 00:00.520 --> 00:01.840 Hi everyone. 00:01.840 --> 00:15.000 In this video I will show you how we can return in the best way using the concept of veto and use the 00:15.000 --> 00:15.880 interceptor. 00:16.160 --> 00:24.920 Okay, right here inside the RC folder I will create one more folder will be underscore cross. 00:25.040 --> 00:30.360 Okay, these are the cross for the new for the interceptor. 00:31.400 --> 00:35.320 And maybe in the future we will have a middleware okay. 00:35.360 --> 00:37.560 Or girls or something like that. 00:40.400 --> 00:40.960 Okay. 00:41.720 --> 00:47.280 The reason I put it inside the car because it will organize the code. 00:47.320 --> 00:47.600 Okay. 00:47.640 --> 00:56.200 And I want most many things right here outside the root folder or the src folder okay. 00:57.200 --> 01:03.910 It will be messy with the other module, so I will move that into the course. 01:04.790 --> 01:08.150 And right now let's go to the interceptor. 01:11.950 --> 01:15.110 So here let's create interceptor. 01:16.550 --> 01:30.270 We will jump from radio Interceptor and move over here and make sure we install the class transformer. 01:31.150 --> 01:31.750 Okay. 01:34.470 --> 01:36.990 Now let's see how we can install that. 01:37.550 --> 01:47.750 If you remember in the first section of the video on the core concept of the session, I already showed 01:47.790 --> 01:49.830 you the validation. 01:49.830 --> 01:50.830 That is right. 01:51.430 --> 01:54.990 In here we have a class validator and class transformer. 01:55.310 --> 01:56.670 For now let's install. 01:56.670 --> 01:57.420 That's does also. 02:01.540 --> 02:13.540 Now, if you do not understand what the god's over here, but please go back and watch the section about 02:14.900 --> 02:18.060 the legit fundamental. 02:19.100 --> 02:19.620 Okay. 02:22.700 --> 02:23.700 Now we have an error. 02:23.700 --> 02:24.340 Let me say. 02:28.140 --> 02:29.580 Right here we have. 02:31.820 --> 02:34.820 Error from S linked. 02:35.780 --> 02:37.140 Well two error. 02:38.340 --> 02:40.820 Firstly let me show you how we can fit us. 02:41.580 --> 02:46.180 Click here and click on show documentation and open that. 02:48.740 --> 02:52.300 In here let me copy the rule upstairs. 02:54.540 --> 02:58.570 And go to the eslint config. 02:59.370 --> 02:59.850 Okay. 03:00.970 --> 03:02.570 And start over here. 03:03.450 --> 03:05.850 And gentle off. 03:07.090 --> 03:15.770 It will fix one error and we have another error from the return. 03:15.770 --> 03:19.010 You can see you can read. 03:19.330 --> 03:25.450 Error will be no unsafe returns right. 03:26.130 --> 03:26.730 Right here. 03:26.730 --> 03:27.290 Let's change. 03:27.290 --> 03:34.250 The return will be off and this will be work. 03:38.010 --> 03:38.570 So. 03:41.250 --> 03:50.650 After we already have a transform right here, let me show you how it can be used inside this zero. 03:50.690 --> 03:59.120 Here of the authentication I will create a small authentication with your lost keys. 03:59.680 --> 04:00.200 Right. 04:02.320 --> 04:02.880 In here. 04:02.920 --> 04:03.760 What do we need to do? 04:03.800 --> 04:05.320 I will export a class. 04:05.640 --> 04:06.840 We will respond. 04:07.480 --> 04:08.800 How little? 04:10.040 --> 04:13.880 Right here I will expose name. 04:19.160 --> 04:19.760 Email. 04:21.720 --> 04:22.240 Okay. 04:22.240 --> 04:24.320 We only missed two. 04:27.480 --> 04:27.960 Pieces. 04:27.960 --> 04:28.320 Here. 04:29.320 --> 04:32.560 Um, let me remove everything. 04:33.000 --> 04:37.760 I just need to return the blacklist. 04:37.920 --> 04:38.560 This thing. 04:39.960 --> 04:42.200 Well, right now, let's do that. 04:43.080 --> 04:45.000 Use interceptor. 04:45.760 --> 04:46.400 We will. 04:53.950 --> 04:59.710 Let me say, what is the name we will import from this year over here? 05:04.630 --> 05:08.750 And most of babies born on this year. 05:09.550 --> 05:10.030 Okay. 05:17.470 --> 05:19.990 And we have an error. 05:40.510 --> 05:41.150 The reason? 05:41.150 --> 05:45.750 Because right here, we just need to move it over here. 05:50.580 --> 05:51.100 Okay. 05:58.380 --> 06:01.180 And let's say it were not. 06:05.900 --> 06:09.260 Now you can say it's already got the name and email. 06:09.860 --> 06:10.380 Okay. 06:11.300 --> 06:12.540 And one more thing. 06:12.540 --> 06:18.020 We should return, which is the message okay. 06:18.060 --> 06:21.220 And what it will return the message will be success. 06:21.380 --> 06:23.820 And after that the type of data. 06:24.340 --> 06:30.780 So in order to do that go back to the transform radio interceptor. 06:31.460 --> 06:33.100 Let me close this line. 06:35.660 --> 06:36.140 Okay. 06:44.460 --> 06:53.050 So let me say Here we would say success, right? 06:53.690 --> 06:57.730 And we put the data we plan to test. 07:01.410 --> 07:01.930 Okay. 07:02.890 --> 07:07.610 And now we have one more TypeScript error. 07:08.330 --> 07:09.850 Let this border also. 07:19.810 --> 07:20.330 Okay. 07:20.370 --> 07:22.090 This will fix. 07:24.890 --> 07:29.130 And let me show you over here. 07:30.450 --> 07:38.930 Create a new team and say okay, we already got the data message and data. 07:39.370 --> 07:40.210 Very good. 07:42.090 --> 07:43.930 So that's for the video. 07:44.610 --> 07:46.810 And I will see you in the next one.