1 00:00:01,200 --> 00:00:05,790 ‫So let's now display some nicely formatted notifications 2 00:00:05,790 --> 00:00:08,550 ‫which in the world of web design 3 00:00:08,550 --> 00:00:12,693 ‫and development are also called toasts for some reason. 4 00:00:14,310 --> 00:00:19,050 ‫So for that, let's bring in yet another third party library. 5 00:00:19,050 --> 00:00:20,890 ‫And this is a really small one 6 00:00:23,217 --> 00:00:26,340 ‫but it's still better than built all of this stuff by hand. 7 00:00:26,340 --> 00:00:31,340 ‫So React Hot Toast is the name of this library. 8 00:00:33,480 --> 00:00:36,180 ‫And then we will actually need to set that 9 00:00:36,180 --> 00:00:40,800 ‫up right here again in our application. 10 00:00:40,800 --> 00:00:44,910 ‫So in this component right here in our component tree. 11 00:00:44,910 --> 00:00:49,910 ‫So similar to these global styles and these dev tools 12 00:00:50,460 --> 00:00:54,090 ‫we need to add yet another self-closing component here 13 00:00:54,090 --> 00:00:56,430 ‫in this case, one that is responsible 14 00:00:56,430 --> 00:01:00,543 ‫for providing some options to our toaster. 15 00:01:01,860 --> 00:01:04,860 ‫So let's actually do that down here 16 00:01:04,860 --> 00:01:08,883 ‫in order not to clutter or mark up too much. 17 00:01:12,900 --> 00:01:15,870 ‫And so this component is called a toaster 18 00:01:15,870 --> 00:01:18,450 ‫because it'll produce toasts. 19 00:01:18,450 --> 00:01:21,780 ‫And again, toasts are the name that we give 20 00:01:21,780 --> 00:01:24,180 ‫to these notifications that we see. 21 00:01:24,180 --> 00:01:28,200 ‫So these kind of alerts, so toaster 22 00:01:28,200 --> 00:01:31,053 ‫and then this receives a few props. 23 00:01:32,458 --> 00:01:33,291 ‫Once again, you can look all 24 00:01:33,291 --> 00:01:36,240 ‫of these props up in the documentation. 25 00:01:36,240 --> 00:01:41,097 ‫So if you just Google React Hot Toast, then yeah 26 00:01:43,001 --> 00:01:45,510 ‫the best toast in town. 27 00:01:45,510 --> 00:01:50,490 ‫And so here you can already see what's that gonna look like. 28 00:01:50,490 --> 00:01:53,343 ‫And then here you have examples of all kinds of stuff. 29 00:01:55,243 --> 00:01:56,190 ‫And yeah, if you want 30 00:01:56,190 --> 00:01:59,760 ‫you can check out how this works over there. 31 00:01:59,760 --> 00:02:01,590 ‫So here I want to display this. 32 00:02:01,590 --> 00:02:06,590 ‫In the top center, the gutter should be 12 33 00:02:06,990 --> 00:02:11,990 ‫which is the space between the window and the toaster. 34 00:02:13,800 --> 00:02:16,630 ‫Then the container style should be 35 00:02:17,550 --> 00:02:21,123 ‫and so here we need to specify now an object of styles. 36 00:02:22,560 --> 00:02:27,003 ‫So let's give it a margin of eight pixels. 37 00:02:28,530 --> 00:02:33,483 ‫And then here we can specify some toast options. 38 00:02:35,880 --> 00:02:37,560 ‫So we can, for example, define 39 00:02:37,560 --> 00:02:41,673 ‫for how long a success toast will stay on the screen. 40 00:02:42,630 --> 00:02:47,073 ‫So success and then duration. 41 00:02:48,750 --> 00:02:52,410 ‫And let's set it to three seconds. 42 00:02:52,410 --> 00:02:55,680 ‫So 3000 milliseconds. 43 00:02:55,680 --> 00:02:59,073 ‫And then we can do the same for the error. 44 00:03:00,570 --> 00:03:02,310 ‫So let's make this a bit longer 45 00:03:02,310 --> 00:03:05,103 ‫so that the user can see what's actually wrong. 46 00:03:06,060 --> 00:03:10,560 ‫And finally, we can define some more styles here. 47 00:03:10,560 --> 00:03:14,283 ‫So let's say the font size should be 16 pixels, 48 00:03:17,730 --> 00:03:22,323 ‫the max width I'm gonna make it 500 pixels. 49 00:03:24,060 --> 00:03:26,130 ‫Add some padding so that it's similar 50 00:03:26,130 --> 00:03:29,133 ‫to the rest of the app. 51 00:03:30,240 --> 00:03:33,660 ‫And then also let's give it a background color 52 00:03:33,660 --> 00:03:36,600 ‫to also match our app's design. 53 00:03:36,600 --> 00:03:39,270 ‫And so here we can actually now reference our CSS 54 00:03:39,270 --> 00:03:42,183 ‫variables that we created earlier. 55 00:03:43,620 --> 00:03:46,173 ‫So gray zero. 56 00:03:47,730 --> 00:03:52,143 ‫And then let's do the same for the text color. 57 00:03:53,460 --> 00:03:55,590 ‫So here, 700. 58 00:03:55,590 --> 00:03:59,880 ‫And with this, we are now ready to use this toaster. 59 00:03:59,880 --> 00:04:04,880 ‫So right here, let's now replace these alerts with toast. 60 00:04:08,490 --> 00:04:09,540 ‫So this is the function 61 00:04:09,540 --> 00:04:12,780 ‫that we can import from React Hot Toast. 62 00:04:12,780 --> 00:04:16,021 ‫And then on there we can create a bunch of different toasts 63 00:04:16,021 --> 00:04:18,810 ‫so styles of toasts. 64 00:04:18,810 --> 00:04:21,330 ‫So here we want an arrow toast. 65 00:04:21,330 --> 00:04:25,500 ‫And here we want a toast dot success. 66 00:04:25,500 --> 00:04:27,930 ‫And so this will then get different icons. 67 00:04:27,930 --> 00:04:31,710 ‫And also as we defined earlier, this one will be displayed 68 00:04:31,710 --> 00:04:34,413 ‫for three seconds and this one for five. 69 00:04:36,060 --> 00:04:38,460 ‫So let's again create ourselves an error 70 00:04:38,460 --> 00:04:40,650 ‫by changing this over here. 71 00:04:40,650 --> 00:04:42,423 ‫And so now as we delete, 72 00:04:44,251 --> 00:04:47,850 ‫ah, this looks a lot nicer than before, doesn't it? 73 00:04:47,850 --> 00:04:52,020 ‫So it stays here for a few seconds and then it disappears. 74 00:04:52,020 --> 00:04:55,590 ‫And we could even add a close button there if you want it. 75 00:04:55,590 --> 00:04:57,183 ‫But let's keep it simple. 76 00:04:58,680 --> 00:04:59,553 ‫All right. 77 00:05:00,720 --> 00:05:03,780 ‫And now let's place it back here. 78 00:05:03,780 --> 00:05:07,170 ‫And just again, to simulate that situation, for example 79 00:05:07,170 --> 00:05:10,770 ‫where two different employees of the hotel are working 80 00:05:10,770 --> 00:05:12,930 ‫on the cabins at the same time. 81 00:05:12,930 --> 00:05:14,913 ‫Let's just duplicate the tap. 82 00:05:16,500 --> 00:05:20,730 ‫So let's say that one employee here deletes a cabin now 83 00:05:20,730 --> 00:05:25,730 ‫so let's see if that works and yeah, nice. 84 00:05:25,890 --> 00:05:29,310 ‫And so now if the other employee is using the application 85 00:05:29,310 --> 00:05:31,230 ‫and navigating around 86 00:05:31,230 --> 00:05:35,580 ‫then also that cabin will disappear for them. 87 00:05:35,580 --> 00:05:39,990 ‫And so that's again, the power of re-validating the queries 88 00:05:39,990 --> 00:05:43,860 ‫and in general of using React Query in the first place. 89 00:05:43,860 --> 00:05:47,670 ‫So it gives us all this functionality so easily 90 00:05:47,670 --> 00:05:49,173 ‫out of the box. 91 00:05:52,290 --> 00:05:55,710 ‫Now here, let's just fix this. 92 00:05:55,710 --> 00:05:59,250 ‫Maybe let's give ourselves another new cabin here. 93 00:05:59,250 --> 00:06:03,280 ‫Actually, just so this looks a bit nicer 94 00:06:04,170 --> 00:06:09,170 ‫for four people and a discount, let's say like this. 95 00:06:13,200 --> 00:06:16,470 ‫And again, immediately it will show up here. 96 00:06:16,470 --> 00:06:21,060 ‫And finally, now let's just fix something in our layout. 97 00:06:21,060 --> 00:06:24,060 ‫So first of all, here we will want some space 98 00:06:24,060 --> 00:06:27,690 ‫between this title and this table, and also 99 00:06:27,690 --> 00:06:31,680 ‫watch what happens when we make this page really large. 100 00:06:31,680 --> 00:06:34,830 ‫So then this table and all this content here 101 00:06:34,830 --> 00:06:39,000 ‫simply stretches to fit the entire available width. 102 00:06:39,000 --> 00:06:40,683 ‫So that's not what we wanted. 103 00:06:42,210 --> 00:06:46,290 ‫And so actually let's come back to our app layout. 104 00:06:46,290 --> 00:06:49,140 ‫And here we will just wrap our page 105 00:06:49,140 --> 00:06:50,763 ‫inside another component. 106 00:06:54,870 --> 00:06:59,427 ‫So let's call this just the standard name of container. 107 00:06:59,427 --> 00:07:02,253 ‫And so this will be a styled div. 108 00:07:04,770 --> 00:07:09,100 ‫And so let's give this a max width of 120 rem. 109 00:07:11,670 --> 00:07:13,980 ‫And then in order to center it 110 00:07:13,980 --> 00:07:17,380 ‫let's use the margin zero auto trick 111 00:07:19,740 --> 00:07:24,303 ‫and then let's we need to wrap our page in there. 112 00:07:25,290 --> 00:07:26,523 ‫So container. 113 00:07:29,190 --> 00:07:31,020 ‫And there we go. 114 00:07:31,020 --> 00:07:35,340 ‫So I think that looks correct, and indeed it does. 115 00:07:35,340 --> 00:07:38,040 ‫So now it just stays nicely centered 116 00:07:38,040 --> 00:07:41,340 ‫and doesn't occupy all too much space. 117 00:07:41,340 --> 00:07:44,700 ‫And now to create the space between this element 118 00:07:44,700 --> 00:07:48,810 ‫and the next one, let's also use the container. 119 00:07:48,810 --> 00:07:52,770 ‫So that's a lot nicer than to just add some random spacing 120 00:07:52,770 --> 00:07:55,740 ‫to this element right there. 121 00:07:55,740 --> 00:08:00,603 ‫So again, we can just do this on the parent using flex box. 122 00:08:02,768 --> 00:08:07,768 ‫So display flex and then flex direction column. 123 00:08:08,580 --> 00:08:10,893 ‫And then we can simply define a gap. 124 00:08:12,960 --> 00:08:16,233 ‫So 3.2 rem. 125 00:08:18,360 --> 00:08:19,503 ‫And there we go. 126 00:08:20,520 --> 00:08:24,360 ‫Great, so this application is starting to look better 127 00:08:24,360 --> 00:08:27,720 ‫and better, and I'm really happy the way that it's turning 128 00:08:27,720 --> 00:08:29,850 ‫out, and now, next up 129 00:08:29,850 --> 00:08:33,690 ‫let's actually add a form to create new cabins so 130 00:08:33,690 --> 00:08:38,223 ‫that we no longer have to always come here to add new ones.