WEBVTT 00:00.000 --> 00:00.270 Okay. 00:00.300 --> 00:06.630 Our next task will be to delete an entity from our database or delete a resource from our database. 00:06.630 --> 00:08.670 So let's go back to VS code. 00:08.700 --> 00:10.410 Pretty straightforward this one. 00:10.410 --> 00:17.040 And what I would suggest if you're feeling confident at this stage of the course then you don't really 00:17.040 --> 00:19.320 need to watch me demonstrate this. 00:19.320 --> 00:23.730 I'm pretty sure you'd be able to cope with this based on what we've covered so far. 00:23.730 --> 00:29.040 I'm going to demonstrate it anyway, but feel free to pause the video and tackle this yourself, and 00:29.040 --> 00:34.980 then just compare your version of what you've done with the version I'm about to demonstrate, and I'll 00:34.980 --> 00:40.260 put a timestamp of where you can skip to, just to take a look at a completed code for this method that's 00:40.260 --> 00:41.820 going to come up in this lesson. 00:41.820 --> 00:44.010 But anyway, I'm going to demonstrate this now. 00:44.010 --> 00:49.950 So I'm going to use Authorize and roles as equal to admin again just as I've done before. 00:49.950 --> 00:55.680 And this is going to be an HTTP delete type of method. 00:55.680 --> 01:00.180 And we're going to take a parameter inside here inside quotes inside curly brackets. 01:00.180 --> 01:02.340 We're going to take the id parameter. 01:02.370 --> 01:06.210 Feel free to use it if you prefer inside here as well. 01:06.240 --> 01:11.880 And like I mentioned before, I don't really see much benefit in that, but it makes it clear what we're 01:11.880 --> 01:13.950 expecting I guess at least. 01:14.040 --> 01:21.760 So I'll use public async task and a delete method doesn't return anything apart from the HTTP response 01:21.760 --> 01:23.500 saying that the request was okay. 01:23.500 --> 01:30.250 So we'll use task of action result again without a type parameter. 01:30.250 --> 01:37.150 And we'll call this method delete products and we'll pass in the int and the id inside. 01:37.150 --> 01:39.040 Here we first need to get hold of our product. 01:39.040 --> 01:44.710 So I'll say our product equals await context dot products. 01:44.710 --> 01:48.730 And we'll use the find async method and pass in the id. 01:49.720 --> 01:52.150 We'll check to see if the product is equal to null. 01:52.420 --> 01:56.260 And if it is then we're simply going to return not found. 01:58.750 --> 02:04.240 And below this we'll use context dot products dot remove. 02:04.450 --> 02:06.370 And we'll pass in the product. 02:06.940 --> 02:16.630 And then we'll specify var results equals await context dot save changes async which is greater than 02:16.660 --> 02:17.590 zero. 02:17.590 --> 02:25.420 And if results equals true which we can effectively shorthand to if result then we're going to return 02:25.450 --> 02:25.840 okay. 02:25.870 --> 02:26.440 From this. 02:26.440 --> 02:32.170 That's the correct type of response to return for an HTTP delete method. 02:32.170 --> 02:40.240 And if it's not okay, we're just going to return a bad request and say problem deleting the product. 02:43.180 --> 02:46.150 And that's it for this method. 02:46.180 --> 02:49.630 So we'll just confirm that this functionality is working. 02:49.630 --> 02:52.270 So I'll just see if Hot Reload succeeded. 02:52.510 --> 02:53.560 And it said it did. 02:53.560 --> 02:55.840 And let's see if it really did. 02:55.840 --> 02:59.860 So I'll try and delete the product in the postman request here. 02:59.890 --> 03:05.950 I'll change 19 to 1002 because that's the product ID I have. 03:05.980 --> 03:08.170 I'll click send and we get the 200. 03:08.200 --> 03:10.690 Okay, so it worked. 03:10.720 --> 03:14.080 And if we try and get that product, we'd expect to see a not found this time. 03:14.080 --> 03:14.920 And we do. 03:14.950 --> 03:15.940 Perfect. 03:16.000 --> 03:17.950 So that's the delete operation. 03:17.950 --> 03:21.310 That's the code we need for this functionality. 03:21.310 --> 03:28.990 And what we'll take a look at next is because we have a picture URL property. 03:28.990 --> 03:35.020 We'll give our admins the ability to upload an image for a product as well. 03:35.020 --> 03:40.750 And that means we need to take a look at upload file and photo image functionality, and we'll start 03:40.750 --> 03:43.180 taking a look at that next.