WEBVTT 00:00.020 --> 00:00.260 Okay. 00:00.290 --> 00:03.020 Our next task is to create the order itself. 00:03.020 --> 00:10.190 And to help us with this, we'll create an create order DTO so that we can take the information we need 00:10.190 --> 00:11.930 from the client. 00:11.930 --> 00:13.730 And we'll create a new file in here. 00:13.730 --> 00:19.490 And it's going to be a class and we'll call it Create Order DTO. 00:19.610 --> 00:25.190 And what information do we need to get to be able to create an order. 00:25.190 --> 00:31.490 And we effectively need to if we go and take a look at the order, what do we need to get from the browser 00:31.490 --> 00:32.810 that we do not already have. 00:32.810 --> 00:34.640 So we're going to have the buyer email. 00:34.640 --> 00:37.640 The ID gets created for us, the shipping address, we don't know. 00:37.640 --> 00:39.080 That's something we will need. 00:39.110 --> 00:41.570 The order date we're initializing anyway. 00:41.570 --> 00:46.940 The order items we get from the basket, the subtotal, delivery fee and discount we can work out for 00:46.940 --> 00:53.840 ourselves the payment intent ID we can also get from the basket the order status we create, and the 00:53.840 --> 00:56.570 payment summary is something else that we need to get from the client. 00:56.570 --> 01:03.590 So the only things we need in our DTO is this payment summary and also the shipping address as well. 01:03.590 --> 01:08.750 That's something that we cannot Not ascertain without getting that information from the browser. 01:09.410 --> 01:11.630 So we'll have a couple of properties in here. 01:11.630 --> 01:14.300 One will be for the shipping address. 01:14.300 --> 01:19.760 And we'll get that from our order aggregates and we'll call it shipping address. 01:19.760 --> 01:25.070 And we'll also have another property in here for the payment summary. 01:25.100 --> 01:27.080 And we'll call it payment summary. 01:27.080 --> 01:30.290 And we'll make both of these required. 01:33.710 --> 01:34.520 Okay. 01:35.120 --> 01:39.080 And then we can go back to our orders controller. 01:39.080 --> 01:41.930 And we'll create the method to create a new order. 01:41.930 --> 01:45.500 So this is going to be an HTTP post. 01:45.980 --> 01:49.370 And we'll specify public async task. 01:49.760 --> 01:52.130 That's an action result. 01:52.130 --> 01:56.870 And we are going to return the order from this once it has been created. 01:56.870 --> 01:59.360 And we'll call it create order. 01:59.360 --> 02:04.790 And we'll pass up as its argument the Create Order DTO. 02:04.790 --> 02:07.670 And we'll just call this order DTO. 02:07.730 --> 02:12.740 So the first thing we'll do is we'll get hold of our basket, so we'll use our baskets. 02:13.580 --> 02:21.380 Or in fact, we can just use the basket ID because we've got inside our extension methods we created 02:21.380 --> 02:23.660 earlier basket extensions. 02:23.660 --> 02:31.520 And we have inside here a get basket with items method that guarantees we get the baskets or throws 02:31.520 --> 02:33.170 an exception if it cannot. 02:33.170 --> 02:35.990 So we'll use this extension methods here. 02:35.990 --> 02:45.320 So in our orders controller we'll use var basket equals and say await and context dot baskets. 02:45.320 --> 02:48.980 And we'll use the get basket with items method. 02:48.980 --> 02:55.310 And we need to pass in our basket ID which we can use the request dot cookies. 02:55.370 --> 02:59.420 And in square brackets we can specify the basket ID. 03:00.080 --> 03:03.290 So next we'll check to see if we have the basket. 03:03.290 --> 03:06.440 So we'll check to see if the basket is equal to null. 03:06.530 --> 03:07.430 Or. 03:07.460 --> 03:10.700 We'll also make sure there's items in the basket as well. 03:10.700 --> 03:17.090 And we'll make sure the basket dot items dot count is equal to zero. 03:17.150 --> 03:26.120 And if that is the case, then we're going to return a bad request and say basket is empty or not found. 03:26.990 --> 03:30.500 And below this we'll create a method to go and get our order items. 03:30.500 --> 03:35.480 So I'll save our items equals create order items. 03:35.480 --> 03:39.440 And we'll pass into this method the basket dot items. 03:39.830 --> 03:42.500 And we'll put our cursor where the arrow is. 03:42.530 --> 03:44.060 And we'll use the quick fix. 03:44.060 --> 03:47.780 And we'll generate the method for creating the order items. 03:47.780 --> 03:49.220 And we'll come back to that. 03:49.940 --> 03:53.270 Following this we will work out our subtotal. 03:53.630 --> 03:58.610 So the var subtotal equals items dot sum. 03:58.610 --> 04:04.130 And we don't have access to the sum yet because we need to specify what we're returning from our create 04:04.130 --> 04:05.660 order items method. 04:05.690 --> 04:08.540 So let's swap object here for a list. 04:11.090 --> 04:13.700 Of type order item. 04:14.420 --> 04:16.580 And then we can work out our subtotal. 04:16.580 --> 04:18.950 So this is going to be items dot. 04:18.950 --> 04:31.310 Start some and we'll use x at the arrow and x dot price multiplied by x dot quantity. 04:31.310 --> 04:33.710 And then we'll add the delivery fee. 04:33.710 --> 04:37.010 So we'll say var delivery fee equals. 04:37.160 --> 04:39.320 And we'll create a method for this as well. 04:39.320 --> 04:43.400 So we'll use calculate delivery fee. 04:43.700 --> 04:48.740 And we'll pass in the subtotal as its parameter. 04:48.740 --> 04:51.020 And we'll put a cursor inside here. 04:51.020 --> 04:54.140 And we'll generate this method as well. 04:54.140 --> 04:57.110 And this is going to return a long. 04:57.140 --> 05:02.780 And again we won't worry about populating the content of that method yet. 05:02.780 --> 05:05.180 And below this we can create our new order. 05:05.180 --> 05:08.000 So we'll say var order equals new order. 05:09.680 --> 05:17.750 And we'll specify our order items is equal to the items the buyer email will set equal to the user dot. 05:17.750 --> 05:19.310 Get username. 05:19.850 --> 05:24.990 The shipping address we can get from our order DTO Auto shipping address. 05:25.530 --> 05:29.220 The delivery fee will equal the delivery fee. 05:30.180 --> 05:33.180 The subtotal will equal the subtotal. 05:34.560 --> 05:43.560 The payment summary will get from our order DTO dot Payment Summary and the payment intent ID will get 05:43.560 --> 05:46.890 from the basket dot Payment intent ID. 05:49.140 --> 05:55.620 And then we can use our context dot orders dot add and pass in the order. 05:57.600 --> 06:07.860 And at this point we can remove our baskets from the dot net side or our back end side of things. 06:07.860 --> 06:13.560 So we'll use context dot baskets dot remove baskets. 06:14.310 --> 06:18.540 And we'll also as a backup delete the cookie as well from here as well. 06:18.540 --> 06:26.670 So we'll say response dot cookies dot delete and pass in the basket ID. 06:28.830 --> 06:32.160 And then we can save our changes into the database. 06:32.160 --> 06:38.010 So I'll say var results equals await context dot save changes async. 06:38.040 --> 06:44.550 And we'll make sure that is greater than zero changes that have been saved into our database. 06:44.940 --> 06:45.960 We'll check the results. 06:45.960 --> 06:58.020 And if say if not results then we will return a bad request and say problem creating order. 07:00.030 --> 07:03.270 And finally we can return the order. 07:03.270 --> 07:07.020 And because we're creating something we're creating a resource in our database. 07:07.020 --> 07:16.200 The correct response for this is a createdat action or created at root or a 201 created result is what 07:16.200 --> 07:17.910 gets them back to the browser. 07:17.910 --> 07:23.220 But we can use a method provided by dotnet called Createdat action. 07:23.220 --> 07:30.480 And for the location header that gets returned, we just want to point to where the client can find 07:30.480 --> 07:32.920 the recently created order. 07:33.190 --> 07:42.670 So we'll use name of and we'll use get order details as this is the method, the endpoint that would 07:42.670 --> 07:45.340 give us the specific order that's been created. 07:45.340 --> 07:48.460 And the order details takes a parameter. 07:49.210 --> 07:52.600 So we need to specify that inside here as the second argument. 07:52.600 --> 07:57.010 And we'll say new in curly brackets we'll use ID equals. 07:57.010 --> 08:00.460 And then we can use the order id as its parameter. 08:00.460 --> 08:04.270 And finally we can return the order from this method. 08:04.270 --> 08:08.530 And that will result in a 201 created being sent back to the browser. 08:08.830 --> 08:13.210 So we've got a couple of methods that don't have any logic inside them. 08:13.450 --> 08:15.610 And we'll call this a challenge. 08:15.610 --> 08:24.610 So your challenge is to populate what we need inside here for both of these different methods. 08:24.610 --> 08:27.340 And please give this a go. 08:27.340 --> 08:32.110 And in the next lesson I'll cover what it is step by step. 08:32.110 --> 08:37.900 What we need to do to get this functionality complete in this controller.