1 00:00:01,630 --> 00:00:06,030 Let's have a very quick side discussion and discuss what this directory argument is all about. 2 00:00:06,580 --> 00:00:10,660 So I just introduced that directory argument in the last video without really explaining what was going 3 00:00:10,660 --> 00:00:11,170 on with it. 4 00:00:11,500 --> 00:00:15,490 Let me first go over to my terminal very quickly, and I just want to point out something to you very 5 00:00:15,490 --> 00:00:16,790 fast, OK? 6 00:00:16,870 --> 00:00:21,490 So, again, our expectation is that at some point in time, a user might run a command like daybook 7 00:00:21,490 --> 00:00:24,610 Cerf notes, or something like that. 8 00:00:25,500 --> 00:00:31,980 But a user might expect that they could put in not only a file name right here, but potentially also 9 00:00:31,980 --> 00:00:34,590 a path to where this file actually exists. 10 00:00:35,040 --> 00:00:41,280 So, for example, they might say open up inside of my notes folder. 11 00:00:41,310 --> 00:00:46,950 The notes file a user very potentially, without doubt, they might try to write out something like 12 00:00:46,950 --> 00:00:47,280 this. 13 00:00:47,550 --> 00:00:50,280 And I just want to make sure that our Seelie can handle this kind of thing. 14 00:00:50,670 --> 00:00:54,660 I want to make sure that we do not try to create a file called Notes Slash Notes. 15 00:00:55,530 --> 00:01:01,350 Instead, I want to make sure that our client understands that the intent here is to go into the notes 16 00:01:01,350 --> 00:01:04,890 directory, then create a notes, not just file inside there. 17 00:01:05,489 --> 00:01:07,910 So that's what this directory argument is all about. 18 00:01:08,460 --> 00:01:10,050 Just to make sure this is crystal clear. 19 00:01:10,110 --> 00:01:12,540 Let's take a look at a diagram to just really spell things out. 20 00:01:14,630 --> 00:01:19,610 OK, so in this diagram, I've got an example folder structure on the left hand side, we're going to 21 00:01:19,610 --> 00:01:23,360 imagine that on a user's machine there is a workspace directory. 22 00:01:23,660 --> 00:01:29,270 Inside, there is a notes directory, and inside of notes are three different folders, go notes, typescript 23 00:01:29,270 --> 00:01:30,590 notes and JavaScript notes. 24 00:01:31,220 --> 00:01:34,700 And then finally, inside the J.S. Notes directory is notebook James. 25 00:01:35,830 --> 00:01:40,990 Remember that whenever you open up your terminal, your terminal is always open to some current directory 26 00:01:40,990 --> 00:01:41,800 on your machine. 27 00:01:42,260 --> 00:01:47,020 So let's imagine for a second that a user is inside of their notes directory inside their terminal. 28 00:01:47,020 --> 00:01:49,940 So their terminal is currently pretty much right there at that folder. 29 00:01:50,620 --> 00:01:57,310 We want to allow a user to write out books or go into the James Notes directory and open up the notebook 30 00:01:57,880 --> 00:01:58,350 file. 31 00:01:58,900 --> 00:02:01,220 And so a command like that might look like this right here. 32 00:02:01,240 --> 00:02:04,250 So go into Jass notes, notebooks. 33 00:02:05,870 --> 00:02:12,360 So in this kind of scenario, we would want to provide a file name our server of Simply Notebook's, 34 00:02:12,380 --> 00:02:16,890 that is the name of the exact file that a user wants to save their cells into. 35 00:02:17,690 --> 00:02:21,460 We then want to also pass along that directory argument as well. 36 00:02:21,470 --> 00:02:26,050 In this case, the directory should be the entire absolute path to that folder. 37 00:02:26,570 --> 00:02:30,020 So everything from workspace notes, just notes. 38 00:02:31,110 --> 00:02:31,870 That's our intent. 39 00:02:31,890 --> 00:02:36,850 That's the goal and this is going to allow a user to write in any kind of relative path when they run 40 00:02:36,890 --> 00:02:39,870 JDBC serve or technically any kind of absolute path as well. 41 00:02:40,070 --> 00:02:43,440 It's going to make sure that we always open up the correct file in the correct directory. 42 00:02:44,660 --> 00:02:48,380 Now that we understand what the directory argument is all about, we're going to do just a little bit 43 00:02:48,380 --> 00:02:53,390 more work in the next video inside of our action function in our Seelie, make sure that we properly 44 00:02:53,390 --> 00:02:58,100 calculate what this directory string is and pass it along into the serve function.