1 00:00:01,100 --> 00:00:02,990 ‫{\an8}Let's now take a small break 2 00:00:02,990 --> 00:00:04,900 ‫{\an8}from building our API 3 00:00:04,900 --> 00:00:07,080 ‫{\an8}and build a fun little script 4 00:00:07,080 --> 00:00:10,430 ‫{\an8}that will import the tour data from our JSON file 5 00:00:10,430 --> 00:00:12,930 ‫{\an8}into the MongoDB database. 6 00:00:12,930 --> 00:00:14,240 ‫{\an8}And I wasn't really sure 7 00:00:14,240 --> 00:00:16,850 ‫{\an8}if I should include this video in the course 8 00:00:16,850 --> 00:00:19,620 ‫{\an8}or if I should just come with the script 9 00:00:19,620 --> 00:00:22,690 ‫{\an8}already in the course starter files. 10 00:00:22,690 --> 00:00:25,710 ‫{\an8}But I thought I thought it was a nice little exercise 11 00:00:25,710 --> 00:00:27,560 ‫{\an8}and so I included it anyways. 12 00:00:27,560 --> 00:00:30,023 ‫{\an8}So, anyway, let's now get started. 13 00:00:31,860 --> 00:00:34,233 ‫So, basically we're gonna create a script 14 00:00:34,233 --> 00:00:37,200 ‫that will simply load the data from the JSON file 15 00:00:37,200 --> 00:00:39,730 ‫as I just said into the database. 16 00:00:39,730 --> 00:00:42,090 ‫And this script is completely independent 17 00:00:42,090 --> 00:00:44,560 ‫of the rest of our express application. 18 00:00:44,560 --> 00:00:46,990 ‫And so we'll run this completely separately 19 00:00:46,990 --> 00:00:50,720 ‫from the comment line just to import everything once. 20 00:00:50,720 --> 00:00:53,310 ‫Okay, so let me actually create the script 21 00:00:53,310 --> 00:00:56,330 ‫right here in the data folder. 22 00:00:56,330 --> 00:00:57,433 ‫So new file, 23 00:00:58,780 --> 00:00:59,623 ‫import, 24 00:01:01,240 --> 00:01:03,543 ‫dev data.js. 25 00:01:04,400 --> 00:01:05,380 ‫All right. 26 00:01:05,380 --> 00:01:07,810 ‫So, what are we gonna need for this? 27 00:01:07,810 --> 00:01:09,530 ‫We will need mongoose of course 28 00:01:09,530 --> 00:01:11,370 ‫so let's start with that. 29 00:01:11,370 --> 00:01:15,380 ‫Or actually, let's just go ahead into the server.js file 30 00:01:15,380 --> 00:01:16,990 ‫and copy this stuff 31 00:01:16,990 --> 00:01:20,053 ‫because why writing it all over again. 32 00:01:20,960 --> 00:01:23,320 ‫So let's copy everything 33 00:01:23,320 --> 00:01:26,090 ‫and then delete what we don't need. 34 00:01:26,090 --> 00:01:28,410 ‫So we don't need our express application 35 00:01:29,370 --> 00:01:31,370 ‫we also need the .env package 36 00:01:31,370 --> 00:01:33,740 ‫because we need our environment variables 37 00:01:33,740 --> 00:01:38,740 ‫in order to be able to connect to the database again, okay. 38 00:01:38,970 --> 00:01:41,560 ‫And we need to connect to the database in this script 39 00:01:41,560 --> 00:01:44,220 ‫again because it runs completely independent 40 00:01:44,220 --> 00:01:46,010 ‫from the express application. 41 00:01:46,010 --> 00:01:48,930 ‫It's only gonna run once in the beginning. 42 00:01:48,930 --> 00:01:52,690 ‫Next up, we need access to the file system module 43 00:01:52,690 --> 00:01:55,483 ‫because of course we want to read the JSON file. 44 00:01:57,100 --> 00:01:58,700 ‫So require fs 45 00:01:59,910 --> 00:02:03,860 ‫and finally we also need access to the tour model 46 00:02:03,860 --> 00:02:05,390 ‫because the tour model is 47 00:02:05,390 --> 00:02:08,993 ‫where we want to write the tours to, right? 48 00:02:10,300 --> 00:02:12,560 ‫So, tour equals 49 00:02:12,560 --> 00:02:14,870 ‫and now let's find the path there 50 00:02:15,900 --> 00:02:18,410 ‫so from the place where we are right now 51 00:02:18,410 --> 00:02:21,190 ‫we need to go up one level. 52 00:02:21,190 --> 00:02:24,023 ‫And what's going on here with these quotes? 53 00:02:25,800 --> 00:02:27,640 ‫All right, so one level up 54 00:02:27,640 --> 00:02:29,960 ‫and we're in dev data. 55 00:02:29,960 --> 00:02:32,250 ‫So we need another level up 56 00:02:32,250 --> 00:02:33,900 ‫so that we're in the main folder. 57 00:02:33,900 --> 00:02:36,810 ‫And from there we go in to models 58 00:02:36,810 --> 00:02:38,483 ‫and into the tour model. 59 00:02:39,910 --> 00:02:43,160 ‫Okay and that should be it for setup. 60 00:02:43,160 --> 00:02:46,053 ‫Now let's start by reading the file. 61 00:02:47,340 --> 00:02:50,460 ‫So, read JSON file 62 00:02:50,460 --> 00:02:52,253 ‫and that should be fairly simple. 63 00:02:54,250 --> 00:02:57,490 ‫So the tours are at fs.readfile 64 00:02:59,250 --> 00:03:01,700 ‫and we can use the synchronous version of course. 65 00:03:02,820 --> 00:03:07,633 ‫And let's simply say tours simple.json, okay. 66 00:03:08,467 --> 00:03:09,403 ‫And then, 67 00:03:10,260 --> 00:03:12,970 ‫also the encoding. 68 00:03:12,970 --> 00:03:15,233 ‫So, file encoding, utf eight. 69 00:03:16,600 --> 00:03:17,563 ‫Give it a save. 70 00:03:18,730 --> 00:03:21,540 ‫And so now we can write the actual function 71 00:03:21,540 --> 00:03:24,393 ‫that is gonna import the data into the database. 72 00:03:25,750 --> 00:03:29,183 ‫So import data into database. 73 00:03:30,040 --> 00:03:32,380 ‫Okay, just like this. 74 00:03:32,380 --> 00:03:33,940 ‫And so let's create this function. 75 00:03:33,940 --> 00:03:37,690 ‫Import data, import data, 76 00:03:37,690 --> 00:03:39,000 ‫yep. 77 00:03:39,000 --> 00:03:40,980 ‫And that's gonna be and async function 78 00:03:43,010 --> 00:03:45,940 ‫which does not need any arguments 79 00:03:45,940 --> 00:03:50,913 ‫and so let's again use a try catch block here. 80 00:03:53,902 --> 00:03:57,520 ‫And here I'm simply gonna log it to the console 81 00:03:57,520 --> 00:03:58,740 ‫if there is some error, 82 00:03:58,740 --> 00:04:02,350 ‫just to know what's going on in that case. 83 00:04:02,350 --> 00:04:03,183 ‫And now here, 84 00:04:03,183 --> 00:04:05,900 ‫what we will do is very simple. 85 00:04:05,900 --> 00:04:07,253 ‫We are simply gonna await, 86 00:04:08,100 --> 00:04:10,950 ‫tour.create. 87 00:04:10,950 --> 00:04:13,200 ‫So we already used tour.create 88 00:04:13,200 --> 00:04:16,070 ‫and we pass then an object back then right? 89 00:04:16,070 --> 00:04:20,930 ‫But the create method can also accept an array of objects. 90 00:04:20,930 --> 00:04:22,010 ‫And in that case 91 00:04:22,010 --> 00:04:24,390 ‫it will then simply create a new document 92 00:04:24,390 --> 00:04:26,663 ‫for each of the objects in the array. 93 00:04:27,560 --> 00:04:28,920 ‫So, very simple, 94 00:04:28,920 --> 00:04:33,920 ‫all we have to do is to specify our tours data here, right? 95 00:04:34,750 --> 00:04:37,520 ‫And actually it's not 100% correct 96 00:04:37,520 --> 00:04:40,280 ‫because remember that this is JSON. 97 00:04:40,280 --> 00:04:42,860 ‫And so we need to first convert it actually 98 00:04:42,860 --> 00:04:47,423 ‫into a JavaScript object using json.parse. 99 00:04:49,580 --> 00:04:52,380 ‫Okay and so now we actually have 100 00:04:52,380 --> 00:04:54,480 ‫an array of JavaScript objects 101 00:04:54,480 --> 00:04:59,220 ‫that we can now pass into the create method, okay. 102 00:04:59,220 --> 00:05:00,950 ‫And if that was successful, 103 00:05:00,950 --> 00:05:03,290 ‫then the next line is gonna be executed 104 00:05:04,350 --> 00:05:08,660 ‫and so here we can say data successfully 105 00:05:10,820 --> 00:05:12,910 ‫loaded, all right. 106 00:05:12,910 --> 00:05:15,060 ‫And this should already do the job. 107 00:05:15,060 --> 00:05:19,300 ‫Now what about the data that is already in the database? 108 00:05:19,300 --> 00:05:21,150 ‫We can also create an easy way 109 00:05:21,150 --> 00:05:24,620 ‫to basically delete all of that data at the same time. 110 00:05:24,620 --> 00:05:27,343 ‫And so let's simply go ahead and do that as well. 111 00:05:28,250 --> 00:05:30,750 ‫So, delete all data 112 00:05:31,762 --> 00:05:33,823 ‫from collection, let's say. 113 00:05:35,260 --> 00:05:37,840 ‫And this weird yellow color that you see here 114 00:05:37,840 --> 00:05:41,070 ‫actually comes from an extension that I have installed here. 115 00:05:41,070 --> 00:05:42,820 ‫And so to get rid of that, 116 00:05:42,820 --> 00:05:45,633 ‫I'm simply gonna write database again, okay. 117 00:05:47,610 --> 00:05:49,110 ‫So delete data 118 00:05:50,460 --> 00:05:53,910 ‫and again this is gonna be an async function 119 00:05:53,910 --> 00:05:55,373 ‫without any arguments. 120 00:05:57,640 --> 00:05:59,880 ‫And let me actually copy this code here. 121 00:06:01,885 --> 00:06:03,170 ‫So, delete it 122 00:06:05,000 --> 00:06:07,520 ‫and now about the deleting itself 123 00:06:07,520 --> 00:06:11,820 ‫we can use the delete many function. 124 00:06:11,820 --> 00:06:14,240 ‫Okay and actually I showed you this one 125 00:06:14,240 --> 00:06:18,120 ‫back in the intro to MongoDB, right? 126 00:06:18,120 --> 00:06:19,920 ‫Where we could use delete many 127 00:06:19,920 --> 00:06:22,610 ‫and then simply pass in nothing in there 128 00:06:22,610 --> 00:06:23,640 ‫and that would then delete 129 00:06:23,640 --> 00:06:26,710 ‫all of the documents in a certain collection, right? 130 00:06:26,710 --> 00:06:29,020 ‫And so mongoose basically implemented 131 00:06:29,020 --> 00:06:33,180 ‫the same function here on the model, okay. 132 00:06:33,180 --> 00:06:34,013 ‫So in this case, 133 00:06:34,013 --> 00:06:37,520 ‫the tour model has access to this delete many method 134 00:06:37,520 --> 00:06:39,120 ‫which will then do exactly the same 135 00:06:39,120 --> 00:06:43,380 ‫as delete many does in native MongoDB, right? 136 00:06:43,380 --> 00:06:46,320 ‫So, remember that mongoose is just a, 137 00:06:46,320 --> 00:06:49,740 ‫like a layer of abstraction on top of MongoDB. 138 00:06:49,740 --> 00:06:52,700 ‫Which is why it doesn't use the exact same functions 139 00:06:52,700 --> 00:06:56,040 ‫but it still gives us access to some similar ones 140 00:06:56,040 --> 00:06:58,490 ‫or to ones that actually have the same name. 141 00:06:58,490 --> 00:07:00,570 ‫So delete many actually has the same name 142 00:07:00,570 --> 00:07:03,780 ‫as the native MongoDB function, all right? 143 00:07:03,780 --> 00:07:06,700 ‫So again, what this is gonna do is to simply go ahead 144 00:07:06,700 --> 00:07:10,620 ‫and delete all the documents in the tours collection. 145 00:07:10,620 --> 00:07:12,860 ‫So, we have our two functions here 146 00:07:12,860 --> 00:07:15,240 ‫but if we now actually run this file 147 00:07:15,240 --> 00:07:16,850 ‫then nothing will happen. 148 00:07:16,850 --> 00:07:17,700 ‫And that's because 149 00:07:17,700 --> 00:07:21,320 ‫we're not calling any of these functions anywhere, right? 150 00:07:21,320 --> 00:07:22,300 ‫Now we could go ahead 151 00:07:22,300 --> 00:07:26,820 ‫and simply write something like import data here 152 00:07:26,820 --> 00:07:29,000 ‫and then simply call the function here 153 00:07:29,000 --> 00:07:32,040 ‫but I wanted to make this a little bit more fun. 154 00:07:32,040 --> 00:07:34,930 ‫So let's now actually learn a tiny little bit 155 00:07:34,930 --> 00:07:38,130 ‫about interacting with the command line, okay. 156 00:07:38,130 --> 00:07:39,580 ‫And so I'm actually gonna go ahead 157 00:07:39,580 --> 00:07:43,480 ‫and run this file without calling any of these functions. 158 00:07:43,480 --> 00:07:45,480 ‫But instead I'm gonna log to the console 159 00:07:47,260 --> 00:07:51,310 ‫process.argv, 160 00:07:51,310 --> 00:07:52,143 ‫okay. 161 00:07:52,143 --> 00:07:55,800 ‫Just so we can see what process.argv actually is 162 00:07:55,800 --> 00:07:57,860 ‫so that we can then use it. 163 00:07:57,860 --> 00:07:58,693 ‫All right. 164 00:07:58,693 --> 00:08:01,080 ‫Let me open up here another terminal 165 00:08:01,080 --> 00:08:02,583 ‫and then I will use node, 166 00:08:03,840 --> 00:08:05,520 ‫go into dev data 167 00:08:05,520 --> 00:08:06,353 ‫then into data 168 00:08:06,353 --> 00:08:08,980 ‫and then in there import dev data. 169 00:08:08,980 --> 00:08:11,570 ‫And we get some errors here. 170 00:08:11,570 --> 00:08:12,560 ‫Let's see where. 171 00:08:12,560 --> 00:08:15,710 ‫Ah, yeah so it's because of this, 172 00:08:15,710 --> 00:08:17,290 ‫of this file name. 173 00:08:17,290 --> 00:08:20,963 ‫So I guess we should specify the path to there basically. 174 00:08:22,020 --> 00:08:24,540 ‫So let's run this one again 175 00:08:24,540 --> 00:08:26,710 ‫and again we have this error. 176 00:08:26,710 --> 00:08:30,010 ‫And yeah, of course I get this error. 177 00:08:30,010 --> 00:08:31,360 ‫That's a stupid one. 178 00:08:31,360 --> 00:08:32,860 ‫Remember how I told you 179 00:08:32,860 --> 00:08:36,710 ‫that this dot here is always relative from the folder 180 00:08:36,710 --> 00:08:39,210 ‫where the node application was actually started. 181 00:08:39,210 --> 00:08:40,670 ‫And so that's the home folder. 182 00:08:40,670 --> 00:08:42,740 ‫And so we're basically looking for this file here 183 00:08:42,740 --> 00:08:45,010 ‫in the home folder, okay. 184 00:08:45,010 --> 00:08:49,470 ‫So what I should use instead is the dir name, 185 00:08:49,470 --> 00:08:52,860 ‫variable that is available to us everywhere. 186 00:08:52,860 --> 00:08:54,653 ‫So that goes like this. 187 00:08:58,980 --> 00:09:00,320 ‫All right. 188 00:09:00,320 --> 00:09:01,810 ‫Give it another save 189 00:09:01,810 --> 00:09:05,860 ‫and clear up the console and run it again. 190 00:09:05,860 --> 00:09:07,080 ‫And so now it works. 191 00:09:07,080 --> 00:09:08,000 ‫And so here 192 00:09:08,000 --> 00:09:11,650 ‫is the result of this console.log that we have down here, 193 00:09:11,650 --> 00:09:12,897 ‫So process.argv 194 00:09:14,020 --> 00:09:16,020 ‫and basically that is an array 195 00:09:16,020 --> 00:09:20,880 ‫of these two arguments of running this node process. 196 00:09:20,880 --> 00:09:22,890 ‫So, this here is basically 197 00:09:22,890 --> 00:09:24,930 ‫where the node command is located. 198 00:09:24,930 --> 00:09:26,910 ‫So this equivalent to this node 199 00:09:26,910 --> 00:09:28,940 ‫and then the second one, 200 00:09:28,940 --> 00:09:33,730 ‫so this path to this file is actually this here, okay. 201 00:09:33,730 --> 00:09:35,490 ‫So let's quit this here 202 00:09:35,490 --> 00:09:37,723 ‫and let's add kind of an option here. 203 00:09:39,130 --> 00:09:40,090 ‫So I'm gonna write, 204 00:09:40,090 --> 00:09:41,750 ‫dash, dash import 205 00:09:41,750 --> 00:09:43,620 ‫and so I'm sure you have seen something like this 206 00:09:43,620 --> 00:09:44,910 ‫many times before. 207 00:09:44,910 --> 00:09:47,930 ‫For example, when we save a package as a dev dependency 208 00:09:47,930 --> 00:09:49,763 ‫we do it like this. 209 00:09:50,950 --> 00:09:53,180 ‫Save dev, and so we use the same 210 00:09:53,180 --> 00:09:55,710 ‫kind of format for specifying options. 211 00:09:55,710 --> 00:09:57,200 ‫Okay so, dash dash 212 00:09:57,200 --> 00:09:59,760 ‫and then whatever string we put here. 213 00:09:59,760 --> 00:10:03,187 ‫And so I choose to basically specify 214 00:10:03,187 --> 00:10:05,260 ‫the import option like this. 215 00:10:05,260 --> 00:10:07,354 ‫And so you see that now the third argument 216 00:10:07,354 --> 00:10:10,660 ‫is dash dash import, all right? 217 00:10:10,660 --> 00:10:12,860 ‫And so that means that we can now go ahead 218 00:10:12,860 --> 00:10:15,460 ‫and basically use this data here 219 00:10:15,460 --> 00:10:16,410 ‫in order to write 220 00:10:16,410 --> 00:10:19,900 ‫a very simple command line application basically 221 00:10:19,900 --> 00:10:22,970 ‫which will import the data when we specify this option 222 00:10:22,970 --> 00:10:24,430 ‫and will delete the data 223 00:10:24,430 --> 00:10:27,223 ‫when we specify the delete option, all right? 224 00:10:28,090 --> 00:10:29,983 ‫So, let's actually do that. 225 00:10:32,090 --> 00:10:33,240 ‫So, if 226 00:10:34,140 --> 00:10:37,090 ‫process.argv 227 00:10:37,090 --> 00:10:38,040 ‫and it's an array 228 00:10:38,040 --> 00:10:40,370 ‫and we want the third. 229 00:10:40,370 --> 00:10:42,423 ‫So zero, one, two. 230 00:10:44,610 --> 00:10:49,300 ‫So if that element is equal to import 231 00:10:50,380 --> 00:10:54,313 ‫well, then we want to run import data. 232 00:10:55,860 --> 00:10:56,693 ‫Right? 233 00:10:58,950 --> 00:10:59,783 ‫If... 234 00:11:00,790 --> 00:11:04,320 ‫Process.argv two 235 00:11:04,320 --> 00:11:05,853 ‫is equal, 236 00:11:09,180 --> 00:11:12,150 ‫to delete then we want to run 237 00:11:15,310 --> 00:11:16,810 ‫delete data. 238 00:11:16,810 --> 00:11:17,643 ‫And that's it. 239 00:11:19,240 --> 00:11:21,270 ‫So, that should actually give us 240 00:11:21,270 --> 00:11:23,890 ‫the result that we're looking for. 241 00:11:23,890 --> 00:11:25,580 ‫Let's finish this here. 242 00:11:25,580 --> 00:11:27,540 ‫And so now let's run the command here 243 00:11:27,540 --> 00:11:30,460 ‫with delete in order to delete all the data 244 00:11:30,460 --> 00:11:32,240 ‫that we have in the database. 245 00:11:32,240 --> 00:11:33,413 ‫So let's try that out. 246 00:11:35,120 --> 00:11:36,560 ‫It's doing something 247 00:11:36,560 --> 00:11:38,813 ‫and data successfully deleted. 248 00:11:39,770 --> 00:11:42,160 ‫So let's take a look at that now. 249 00:11:42,160 --> 00:11:46,110 ‫And if we run now this get all tours route 250 00:11:46,110 --> 00:11:49,390 ‫then indeed we have zero results. 251 00:11:49,390 --> 00:11:52,380 ‫So, all our tours are now gone. 252 00:11:52,380 --> 00:11:54,020 ‫So it worked. 253 00:11:54,020 --> 00:11:57,380 ‫Now this process here is basically still running. 254 00:11:57,380 --> 00:11:59,060 ‫And so let's quickly fix that, 255 00:11:59,060 --> 00:12:01,210 ‫which is kind of easy. 256 00:12:01,210 --> 00:12:03,410 ‫So, that's a new one we haven't used yet. 257 00:12:03,410 --> 00:12:07,480 ‫Which is process.exit, 258 00:12:07,480 --> 00:12:08,520 ‫All right? 259 00:12:08,520 --> 00:12:12,290 ‫Now this process.exit is kind of an aggressive way 260 00:12:12,290 --> 00:12:14,120 ‫of stopping an application 261 00:12:14,120 --> 00:12:16,280 ‫but in this case it's no problem 262 00:12:16,280 --> 00:12:19,060 ‫because it's really just a very small script 263 00:12:19,060 --> 00:12:23,210 ‫that we're running here and not a real application, right? 264 00:12:23,210 --> 00:12:24,790 ‫Let's just copy the same thing here 265 00:12:24,790 --> 00:12:26,683 ‫into our import data function. 266 00:12:27,860 --> 00:12:29,483 ‫And so now I'm gonna quit it. 267 00:12:30,350 --> 00:12:32,230 ‫And just to show that it works 268 00:12:32,230 --> 00:12:33,330 ‫I'm gonna run it again 269 00:12:34,620 --> 00:12:36,080 ‫so data successfully deleted 270 00:12:36,080 --> 00:12:38,513 ‫and then it exited the process. 271 00:12:39,530 --> 00:12:40,520 ‫All right. 272 00:12:40,520 --> 00:12:43,943 ‫And so now it's time to actually run the function 273 00:12:43,943 --> 00:12:46,293 ‫that we were interested in in the first place. 274 00:12:47,650 --> 00:12:50,760 ‫So with the import flag, basically. 275 00:12:50,760 --> 00:12:52,380 ‫So the import option. 276 00:12:52,380 --> 00:12:53,647 ‫So let's run that 277 00:12:53,647 --> 00:12:56,210 ‫and let's see if it actually works. 278 00:12:56,210 --> 00:12:57,720 ‫And it didn't. 279 00:12:57,720 --> 00:12:59,343 ‫So why is that? 280 00:13:00,220 --> 00:13:03,823 ‫So it tells us here a tour must have a group size. 281 00:13:05,060 --> 00:13:07,790 ‫So where's that coming from? 282 00:13:07,790 --> 00:13:10,400 ‫And we see a lot of validation errors here. 283 00:13:10,400 --> 00:13:13,023 ‫So something must have gone wrong here. 284 00:13:14,370 --> 00:13:15,750 ‫So yeah, we have the cover image, 285 00:13:15,750 --> 00:13:20,110 ‫we have the tour description. 286 00:13:20,110 --> 00:13:21,663 ‫We have the price. 287 00:13:22,610 --> 00:13:23,540 ‫Well, that's weird. 288 00:13:23,540 --> 00:13:24,823 ‫Max group size, 289 00:13:26,760 --> 00:13:29,653 ‫let me actually check if anything happened here. 290 00:13:30,620 --> 00:13:32,120 ‫Actually we have nine tours here 291 00:13:32,120 --> 00:13:35,120 ‫and I think nine is actually all we have. 292 00:13:35,120 --> 00:13:39,380 ‫And so to me it kind of looks like it actually did work. 293 00:13:39,380 --> 00:13:43,570 ‫But let's actually take a quick look at our data here. 294 00:13:43,570 --> 00:13:47,603 ‫So, just to figure out why this actually happens. 295 00:13:48,730 --> 00:13:52,040 ‫So tour simple here 296 00:13:52,040 --> 00:13:53,620 ‫and so we can already see, 297 00:13:53,620 --> 00:13:57,180 ‫actually the problem that is happening. 298 00:13:57,180 --> 00:13:58,840 ‫So we have all these tours 299 00:13:58,840 --> 00:14:00,730 ‫so the original ones. 300 00:14:00,730 --> 00:14:02,630 ‫But then from the last section, 301 00:14:02,630 --> 00:14:04,170 ‫we have these three here 302 00:14:04,170 --> 00:14:08,160 ‫that we kind of added using our file based API. 303 00:14:08,160 --> 00:14:09,210 ‫So, remember that? 304 00:14:09,210 --> 00:14:12,120 ‫So back then we only specified the name, duration 305 00:14:12,120 --> 00:14:14,660 ‫and difficulty and nothing else. 306 00:14:14,660 --> 00:14:16,030 ‫And so right now 307 00:14:16,030 --> 00:14:19,920 ‫our script is trying to import these three tours. 308 00:14:19,920 --> 00:14:23,010 ‫But of course, we're not interested in them at all 309 00:14:23,010 --> 00:14:28,010 ‫and so let's go ahead and save this here, okay. 310 00:14:28,030 --> 00:14:29,620 ‫Then quit this process 311 00:14:29,620 --> 00:14:32,720 ‫and so actually this process.exit 312 00:14:32,720 --> 00:14:35,650 ‫can be outside of the try catch block 313 00:14:35,650 --> 00:14:36,497 ‫and be simply here by the end of the function. 314 00:14:36,497 --> 00:14:37,961 ‫So that no matter if there's an error or not 315 00:14:37,961 --> 00:14:42,583 ‫it will always just exit the process. 316 00:14:43,980 --> 00:14:44,813 ‫All right. 317 00:14:45,900 --> 00:14:47,543 ‫So let's delete everything. 318 00:14:49,580 --> 00:14:51,820 ‫All right, clear the console again. 319 00:14:51,820 --> 00:14:52,893 ‫Now import, 320 00:14:54,230 --> 00:14:55,063 ‫and yeah. 321 00:14:55,063 --> 00:14:56,853 ‫So data successfully loaded. 322 00:14:59,790 --> 00:15:02,180 ‫As indeed here we are again. 323 00:15:02,180 --> 00:15:04,210 ‫So now it's working 100%, 324 00:15:04,210 --> 00:15:08,020 ‫we have our data that we can start working with now 325 00:15:08,020 --> 00:15:09,800 ‫and so, yeah. 326 00:15:09,800 --> 00:15:12,740 ‫Our work with this one here is done. 327 00:15:12,740 --> 00:15:14,900 ‫So, a nice little function, 328 00:15:14,900 --> 00:15:16,310 ‫or a nice little script actually. 329 00:15:16,310 --> 00:15:20,200 ‫I hope that everything made sense to you 330 00:15:20,200 --> 00:15:25,200 ‫and yeah that it was kind of a fun exercise for you as well. 331 00:15:25,320 --> 00:15:26,970 ‫Anyway, see you in the next video 332 00:15:26,970 --> 00:15:31,090 ‫where we are finally starting to then use all this data 333 00:15:31,090 --> 00:15:32,740 ‫and to improve our API 334 00:15:32,740 --> 00:15:35,203 ‫{\an8}by implementing a couple of nice features.