WEBVTT 00:05.120 --> 00:06.560 Hey, did everyone share? 00:06.560 --> 00:10.820 And in this video, we're going to go ahead and see that if somebody gives me this object, ID, this 00:10.820 --> 00:13.670 ID of the order, I need to search this object. 00:13.670 --> 00:20.180 And again, it can come up from the params URL, maybe a query format, maybe a body format. 00:20.180 --> 00:22.970 However you are going to design, the front end guy is going to follow along. 00:22.970 --> 00:26.330 So we expect that this comes up into your URL, let just say. 00:26.330 --> 00:28.910 So let's go ahead and design the method according to that. 00:29.030 --> 00:35.540 So we're going to go ahead and say export and this one is going to be get one order. 00:35.540 --> 00:37.130 And that's exactly what we are doing. 00:37.370 --> 00:43.880 And in fact, I would love to remove this and copy this because this is what I love. 00:43.910 --> 00:44.810 Okay, there we go. 00:44.990 --> 00:47.120 We can actually shrink this one again. 00:47.120 --> 00:51.380 I just I'm just doing it so that I don't have to write this big promise and everything. 00:51.710 --> 00:57.350 Let's remove everything inside this and not everything we can keep this status. 00:57.470 --> 00:58.070 Okay. 00:58.490 --> 01:00.080 So the goal is really simple. 01:00.080 --> 01:05.750 Let's go ahead and find a particular order based on something is coming in the URL. 01:05.750 --> 01:15.680 So all we got to do is order dot find by ID and find by ID will say request dot, params dot and let's 01:15.680 --> 01:18.680 call this one as simply ID and that's pretty much it. 01:18.680 --> 01:21.650 Let's go ahead and say const and this one is going to be order. 01:21.650 --> 01:25.820 And by the way, this is okay. 01:25.880 --> 01:26.380 Yeah. 01:26.900 --> 01:31.730 Just thinking ahead of myself sometime it happens to all the programmers that they try to think a little 01:31.730 --> 01:34.130 bit ahead of the future versions and then they get lost. 01:34.130 --> 01:35.360 It happens to me also. 01:35.750 --> 01:40.130 Okay, so this is all and let's go ahead and check if something is returning or not, because in this 01:40.130 --> 01:44.180 case, the ID in the URL itself can be polluted. 01:44.300 --> 01:50.090 So in this save, if we don't receive any order, let's go ahead and simply return and close this method 01:50.090 --> 01:50.840 right here. 01:51.380 --> 01:52.100 Return. 01:52.370 --> 01:53.240 Let's wrap it up. 01:53.240 --> 01:56.090 In the next, create a new custom error. 01:57.590 --> 01:59.690 Custom error. 02:01.810 --> 02:02.680 There we go. 02:02.810 --> 02:05.470 Didn't we brought in the customer in the first place? 02:05.590 --> 02:06.460 No, we didn't. 02:06.970 --> 02:08.950 So this is the custom error that we got. 02:08.950 --> 02:11.740 And this custom error takes parameter of saying. 02:14.240 --> 02:19.670 Please check order ID and we're going to go ahead and say classic 401. 02:20.180 --> 02:24.230 And in this one, we are going to send the response as ordered back. 02:24.260 --> 02:27.860 This is already going in so it looks like all OC. 02:28.100 --> 02:30.860 Let's go ahead and see that how this is going to work in. 02:31.190 --> 02:33.630 Let's go ahead and export this create order. 02:33.690 --> 02:34.770 Now, this is not create order. 02:34.790 --> 02:37.460 This is get one order. 02:37.550 --> 02:38.630 Save that. 02:39.410 --> 02:40.670 Let's copy this. 02:40.670 --> 02:46.010 Go into the roots and say that I need another root, which is going to be simple. 02:46.010 --> 02:55.610 Get root and user should be logged in and then we are going to just grab this one and let's go ahead 02:55.610 --> 02:59.240 and say a comma here, get one order. 02:59.240 --> 03:01.610 This one will be managed by get one order. 03:01.610 --> 03:07.690 So this is all pretty much it if somebody wants to get that, hey, what is the order that I'm having? 03:07.880 --> 03:10.040 We're going to grab the order here again. 03:10.040 --> 03:13.700 This is something how we are going to get the ID. 03:14.060 --> 03:15.190 I think this is all okay. 03:15.200 --> 03:17.000 Let me just quickly check it one more time. 03:17.000 --> 03:20.480 So in the order controller, we are expecting that in the parameters it will come. 03:20.480 --> 03:21.170 We'll check that. 03:21.170 --> 03:21.410 Okay. 03:21.410 --> 03:22.700 Nice and easy here. 03:22.700 --> 03:26.210 We are saying that slash order slash ID, give me that ID and I will give you back. 03:26.210 --> 03:27.950 You should be logged in to do so. 03:28.610 --> 03:31.760 So it looks like all is okay. 03:32.180 --> 03:33.890 Let's go ahead and test out this route. 03:34.730 --> 03:36.410 So I will go up here. 03:36.440 --> 03:38.210 Let's go ahead and save this one. 03:38.900 --> 03:47.060 And this one is going to be get one order by ID and save that. 03:47.840 --> 03:49.130 Is it a get request? 03:49.160 --> 03:50.690 Yeah, this is a get request. 03:52.110 --> 03:54.970 Let's go ahead and move it to get save that. 03:54.990 --> 04:01.440 And now all we've got to do is make sure we in the previous one when we were creating the order and 04:01.440 --> 04:04.380 again this get order by ID should not be here. 04:04.380 --> 04:05.520 It should be here. 04:06.880 --> 04:07.570 There we go. 04:07.870 --> 04:09.520 So this is the one. 04:09.550 --> 04:09.850 Okay. 04:09.850 --> 04:10.510 Nice and easy. 04:10.510 --> 04:12.670 When we were creating the order itself. 04:14.300 --> 04:17.690 We had the object being received, but again, we don't have it. 04:17.690 --> 04:24.280 Now, let's go ahead and say that this is order slash and can we get the order I.D. from here? 04:24.290 --> 04:25.400 This is the ID exact. 04:25.400 --> 04:27.920 So we expect that all of this data should come in. 04:28.890 --> 04:32.490 Let's go ahead and paste this and send a get request. 04:32.490 --> 04:33.260 And there we go. 04:33.270 --> 04:33.690 Success. 04:33.690 --> 04:33.960 True. 04:33.960 --> 04:35.200 And order is coming in. 04:35.220 --> 04:38.340 Now, I wanted to show you something really interesting here. 04:38.460 --> 04:43.230 Now, notice here the user is coming in as this ID, so which is F one. 04:43.230 --> 04:46.080 So we can actually go back up here and check out that. 04:46.080 --> 04:47.360 Who is the user up here? 04:47.370 --> 04:52.980 So in this case, if I check one, there is a last F one here and I can go into my user model and check 04:52.980 --> 04:54.000 out who plays this one. 04:54.000 --> 05:00.240 So this was placed by two, but maybe sometimes you actually want more information to be coming up as 05:00.240 --> 05:06.000 because the guy who is at the front end might want to check that who is the order or who is the user 05:06.000 --> 05:09.120 who has placed this order, his name and email and all that information. 05:09.120 --> 05:14.760 So he might have to take this request or take this user and have to send another request to our back 05:14.760 --> 05:14.880 end. 05:14.880 --> 05:17.190 We can actually make the life a little bit easier. 05:17.340 --> 05:22.710 So for this one, what we can do is just need to go into the order controller and the place where we 05:22.710 --> 05:23.640 are having this order. 05:23.640 --> 05:26.940 We know that there is something, a situation similar to this. 05:26.940 --> 05:32.400 So what we can do is remove this one and use a method which is populate there we go. 05:32.400 --> 05:34.620 In the populate you just pass on two parameter. 05:34.620 --> 05:38.580 The first one is which field do you want to further down drill down there? 05:38.580 --> 05:43.770 And you can see that we have a lot of such fields available in this in this case, which is the orders. 05:43.770 --> 05:46.590 So all we want to do is drill down this user field here. 05:46.590 --> 05:47.580 So this is the user. 05:47.580 --> 05:52.320 Remember, it's not the model that I'm referring, it's the property of the model that I'm referring 05:52.320 --> 05:52.770 here. 05:52.770 --> 05:53.820 So this is the one. 05:53.820 --> 05:59.700 So I want to drill down for that user and this is reliable that will automatically be evaluated. 05:59.700 --> 06:01.650 And what are the information that you want to grab? 06:01.650 --> 06:02.910 Maybe I want to grab name. 06:02.910 --> 06:04.710 Maybe I want to grab email now. 06:04.710 --> 06:04.980 Yes. 06:04.980 --> 06:09.480 I'm not a big fan of this syntax that you have to pass on the properties separated from the space. 06:09.480 --> 06:12.720 This should be comma or something else, or at least an array. 06:12.960 --> 06:14.130 But this is how it works. 06:14.130 --> 06:17.220 Now, if I go ahead and save this one, you are going to see that. 06:17.220 --> 06:19.260 Let's go ahead and make the same request again. 06:19.260 --> 06:22.590 I send it up and now if I go ahead and check this one. 06:22.590 --> 06:28.830 So notice here, this user field is now expanded and this is now coming up as a name and email. 06:28.860 --> 06:31.050 Now, I'll tell you very interesting stuff about this. 06:31.050 --> 06:33.120 This populate is really, really the simplest feel. 06:33.120 --> 06:37.500 It just allows you to drill down further, expand if you want to get more of the information, maybe 06:37.500 --> 06:40.740 role of the user even you just have to say space and a role. 06:40.740 --> 06:41.340 That's it. 06:41.430 --> 06:46.290 Now in one of my course, earlier course, I asked the user that, hey, go read the documentation of 06:46.290 --> 06:48.420 populate and just let me know how it works. 06:48.420 --> 06:53.580 And to your surprise, a lot of people, more than ten people reached out to me and say that, hey, 06:53.580 --> 06:57.300 you should make a video of the on the populate we are not able to understand. 06:57.300 --> 06:59.250 Let me break it to you very clearly. 06:59.250 --> 07:02.310 I am not able to explain everything in the course. 07:02.310 --> 07:07.320 There is no chance that in any course in the world that you will get all the information sometimes you 07:07.320 --> 07:08.130 need to work. 07:08.130 --> 07:10.500 This is something that the habit should be there. 07:10.500 --> 07:14.430 And most of the international universities, when lecturers and professors give you the assignment, 07:14.430 --> 07:15.840 they don't give you the spoon feeding. 07:15.840 --> 07:19.470 They gives you something which you have to dig up and you have to find it on your own. 07:19.470 --> 07:23.130 These are not assignments that you have to just see the book and write down on the notebook. 07:23.130 --> 07:26.790 This is not how it works, so expect such things from my courses as well. 07:26.820 --> 07:30.420 I will push you towards your limit that you should also explore a little bit. 07:30.420 --> 07:34.830 Learn to read the documentation and there are still so many of the hidden things that you can explore 07:34.830 --> 07:35.850 further down the road. 07:35.850 --> 07:41.400 So really interesting stuff and populate is that's it there is nothing more more into this to explore 07:41.400 --> 07:42.420 further down the road. 07:42.420 --> 07:43.740 So that's it for this one. 07:43.740 --> 07:45.690 Let's go ahead and catch up in the next one.