WEBVTT 00:05.150 --> 00:06.650 Hi everyone welcome back. 00:06.900 --> 00:12.150 So in the previous video we saw that we did the whole structure for the project and now we're going 00:12.150 --> 00:14.410 to re-implementing the after P1. 00:14.460 --> 00:15.200 OK. 00:15.420 --> 00:20.520 So the first thing is as usual we run out of important some of the important libraries and functions 00:20.580 --> 00:23.740 and variables right from other modules. 00:23.910 --> 00:29.130 So first of all read on our imports from class import the flask constructor. 00:29.130 --> 00:31.040 We're also going to import J-Zone F-5s. 00:31.180 --> 00:32.070 We use a lot. 00:32.100 --> 00:37.160 When we return sounds into the user in Jason format and we're also going to import request. 00:37.200 --> 00:37.750 OK. 00:37.980 --> 00:41.260 Now if you notice you're this is a request without an ass. 00:41.280 --> 00:44.450 The other libraries Call requests with an ass. 00:44.460 --> 00:45.050 OK. 00:45.120 --> 00:48.380 So just be careful that these two are not the same things they're different. 00:48.390 --> 00:50.850 And many people actually confuse the two. 00:50.850 --> 00:51.830 OK. 00:52.380 --> 00:53.000 All right. 00:53.070 --> 00:58.540 Now the second thing is we want flask restful so affronts us we're asked for we're going to import API. 00:58.590 --> 00:58.860 Right. 00:58.860 --> 01:04.620 So we want the API constructor and we also want to import resource which we inherit from. 01:06.370 --> 01:13.370 The third thing we want to import is by Mungo's so from the by Mongo books by Mongo we want to import 01:14.040 --> 01:19.410 the Mongo client that we use to connect to the Mongo D-B using the daquiri network. 01:19.410 --> 01:19.790 OK. 01:19.810 --> 01:21.460 Dr. componentry. 01:21.720 --> 01:25.350 Now we also want to hash passwords so we're going to import it. 01:25.710 --> 01:32.160 And then we're going to employ it secret right because that's what we used to do have the password and 01:32.160 --> 01:37.560 then we're going to import this time we're going to important not buy import or actually let's just 01:37.560 --> 01:39.090 leave it as as it is now. 01:39.100 --> 01:42.250 OK so we will not import an Alpine denser flow. 01:42.390 --> 01:43.530 We're going to leave that out. 01:43.560 --> 01:45.980 We're going to see why are we going to leave it later. 01:46.230 --> 01:51.870 And then we're also going to import requests so we send requests with an S is going to be used to get 01:51.870 --> 01:54.760 the image from the or else that they use are sent. 01:54.840 --> 01:55.630 OK. 01:55.860 --> 01:58.970 And then we're also going to import subprocess. 01:58.980 --> 02:03.390 And when I explain why we're going to import this one in there in the future of India. 02:03.510 --> 02:05.790 And we're also going to import it Jason. 02:06.150 --> 02:06.560 So we are. 02:06.570 --> 02:11.710 But I also want to Jason what you on this side you don't need to download it is already in Python. 02:11.730 --> 02:12.130 OK. 02:12.150 --> 02:14.020 So there's this. 02:14.130 --> 02:15.200 All right. 02:15.240 --> 02:21.480 So you don't need to download it or install or anything so it's already in but or I said the first thing 02:21.480 --> 02:27.480 we do is we do an app is equal to flask and then underscore in a square name underscore it underscored 02:27.610 --> 02:28.250 or right. 02:28.320 --> 02:35.590 So we initialize the flask with the name main and then we do Abiah as you go to API constructor. 02:35.700 --> 02:38.280 So we initialize a new API. 02:38.730 --> 02:40.210 Next we do client. 02:40.440 --> 02:47.570 So we want to connect to the maladie So we do client you go to mung the client and then inside we're 02:47.570 --> 02:56.290 going to say Mongo D.B and then semi-colon slash slash and then D-B to 7 0 1 7. 02:56.360 --> 03:02.090 So that means we're connecting to the Mangione be and it's located at D-B right from the dock Nagar 03:02.100 --> 03:10.080 compose your D.B and you're also connecting to the portal default for default port of Mungo D-B which 03:10.080 --> 03:11.530 is 2 7 0 1 0. 03:11.610 --> 03:12.850 OK. 03:12.990 --> 03:16.130 Now after if connected to landlines we want to do a new database. 03:16.140 --> 03:20.720 I want to say D-B is equal to client dot image. 03:20.760 --> 03:25.610 So we're going to do a new database called Image recognition. 03:25.980 --> 03:26.610 OK. 03:26.820 --> 03:30.360 And then I'm going to say users is equal to D-B. 03:30.390 --> 03:35.260 And then when I do a new collection inside the database called users right. 03:35.820 --> 03:38.390 All right so we're now finished. 03:38.430 --> 03:39.360 The main point. 03:39.360 --> 03:39.880 OK. 03:39.930 --> 03:41.680 So now we want to register it. 03:41.690 --> 03:44.590 So do a class and then register. 03:44.980 --> 03:45.730 All right. 03:46.050 --> 03:49.080 And then you're going to inherit from resource. 03:49.080 --> 03:49.750 All right. 03:49.890 --> 03:54.240 And we said that this is going to be a post right if you remember from here we said all of them are 03:54.240 --> 03:55.460 going to be published. 03:55.530 --> 03:56.190 Right. 03:56.460 --> 04:01.270 So we're going to come back here and then we're going to write a defined post self. 04:01.280 --> 04:02.290 All right. 04:02.340 --> 04:04.670 And then inside post we want to get. 04:04.670 --> 04:06.650 First of all we always get to post the data. 04:06.660 --> 04:12.720 So we say post a day that is equal to your request diet get your score. 04:12.830 --> 04:13.640 Jason. 04:13.740 --> 04:14.290 OK. 04:14.430 --> 04:20.370 So you get the J on file at the post and then we get the user name and the password so say a user name 04:20.400 --> 04:24.000 is equal to the today the user name. 04:24.060 --> 04:31.840 OK so the users use your name and also the passwords so your password is equal to posted data and then 04:31.840 --> 04:32.850 password. 04:33.070 --> 04:34.620 Right. 04:35.540 --> 04:38.030 All right so we have the user name and the password. 04:38.100 --> 04:40.980 Well the first thing we did is for the error. 04:41.280 --> 04:46.920 Well as you might have guessed 3:01 that hey there's a way to use it with this using the existing. 04:46.920 --> 04:48.120 So choose another one. 04:48.240 --> 04:51.660 So I want to say if user exists. 04:52.040 --> 04:54.450 So when I write a helper function later on. 04:54.450 --> 04:58.570 So if you use your existing username then what do I do. 04:58.620 --> 05:08.000 Well I want to say you returned Jason is equal to status is three I want two hours in the air and then 05:08.000 --> 05:13.580 a message is invalid usually dates are invalid username. 05:13.770 --> 05:14.600 OK. 05:14.830 --> 05:18.710 And I just returned just on a fly off this return Jason. 05:19.160 --> 05:22.550 So are you going to return the Jaysh on if I ever return. 05:22.640 --> 05:23.630 OK. 05:24.230 --> 05:26.720 Now what happens if this is not the case. 05:26.720 --> 05:29.450 Well we need to now have the password right. 05:29.570 --> 05:34.840 So we're going to say hashed password this is standard is equal to me script. 05:34.840 --> 05:37.990 And then I call the crib hash password function. 05:38.180 --> 05:40.390 And then inside when I write the password. 05:40.460 --> 05:43.320 But I'm going to encode it as UTF 8. 05:43.450 --> 05:45.220 And don't forget about that one. 05:45.230 --> 05:48.670 Or else you're going to it's not going to work. 05:48.860 --> 05:57.240 So you could add two UTF 8 and then you generate assaults on Gaza a be grouped generate salt. 05:57.260 --> 05:57.790 OK. 05:57.920 --> 06:02.010 So generate salt and that's called off. 06:02.090 --> 06:02.630 All right. 06:02.690 --> 06:04.440 So now we have a hashed password. 06:04.460 --> 06:05.240 OK. 06:05.540 --> 06:12.330 Now the next thing is we're going to store the user and the password into our entire database. 06:12.330 --> 06:14.960 I mean I say users got. 06:15.290 --> 06:16.030 OK. 06:16.050 --> 06:21.400 And then and then I inserted the user name as opposed to a user name. 06:21.410 --> 06:23.540 Now we verified it doesn't exist. 06:23.870 --> 06:28.870 I'm also going to do the password password and then. 06:28.940 --> 06:31.520 So let's do that with a capital P. 06:31.820 --> 06:37.810 So the password is going to mean the posted password that the user or hashed password actually not that 06:37.820 --> 06:39.780 posted you know forgot about that. 06:39.890 --> 06:43.760 So the hashed password not the plain password. 06:43.760 --> 06:50.770 So you don't end up like most of these companies and then tokens is going to I'm going to give the user 06:50.770 --> 06:52.240 just a few tokens in the store. 06:52.250 --> 06:54.420 So I'm going to give them like five tokens right. 06:54.440 --> 06:56.740 Or for say for tokens. 06:56.980 --> 06:57.380 All right. 06:57.410 --> 06:58.300 That should be enough. 06:58.310 --> 07:01.100 And then if you want to you can refill later. 07:01.550 --> 07:06.610 OK so once I've generated this user now I want to return a rope line. 07:06.710 --> 07:11.560 So I want to say return Jason is equal to status is 200. 07:11.780 --> 07:18.210 And the message is let's say you know you successfully signed up for this guy. 07:18.220 --> 07:23.050 OK so you're successful they signed up for this. 07:23.450 --> 07:24.060 OK. 07:24.500 --> 07:25.250 All right. 07:25.460 --> 07:27.840 And then once we are done that we just return. 07:27.840 --> 07:32.150 Jason if I return Jason and that should be you. 07:32.180 --> 07:34.410 We shouldn't have anything other than that. 07:34.710 --> 07:40.490 But see we already used the user as this option but we didn't write it so we need to go back and rewrite 07:40.610 --> 07:42.280 the user exists. 07:42.650 --> 07:48.080 So I'm going to come here before the register class and then let's see if I can move it here. 07:48.150 --> 07:51.620 Right then I'm going to write define user exist. 07:51.710 --> 07:56.570 Ok so I'm going to write this user in this function and that is going to take the user name and is going 07:56.570 --> 08:00.650 to tell me this from this user exists in the database or not. 08:00.780 --> 08:02.290 So I'm going to say this. 08:02.510 --> 08:07.540 So if that's so a little bit of inundations yours here too. 08:07.590 --> 08:13.740 If users got signed then I want to find the user name with this user. 08:14.150 --> 08:22.810 So a user name is you try to find some documents with this username that count is equal to zero. 08:22.940 --> 08:24.770 Then I'm going to return false. 08:24.770 --> 08:25.310 Why. 08:25.310 --> 08:30.830 Because this user this user name does not exist in my collection right. 08:30.830 --> 08:34.080 There's no user of this username so I'm allowing him to. 08:34.130 --> 08:37.510 So this user does not exist to answer this question. 08:37.610 --> 08:40.060 User exists with this user name. 08:40.100 --> 08:42.410 No because the count is zero. 08:42.530 --> 08:43.220 OK. 08:43.520 --> 08:47.440 Else if he does exist that count is greater than zero. 08:47.510 --> 08:53.230 So if his account is one for example then that means that the user does exists or return true. 08:53.300 --> 08:53.830 OK. 08:53.900 --> 09:00.100 So very simple on just checking the user with this user name exists then return false otherwise. 09:00.120 --> 09:06.750 Which is true and that should be it for for the registration with just did it in a couple of lines if 09:06.890 --> 09:07.620 it's OK. 09:07.730 --> 09:10.950 So hopefully this is not too hard to see. 09:11.360 --> 09:19.340 So the next thing we want to do is to implement the classify function but we're going to stop here and 09:19.340 --> 09:23.840 we're going to take it from the next video and we're going to start with the classification and the 09:23.840 --> 09:24.380 refilling. 09:24.410 --> 09:24.950 OK. 09:25.010 --> 09:27.320 So the next that is going to be quite long. 09:27.470 --> 09:28.150 All right. 09:28.280 --> 09:32.310 So we're going to stop here and we're going to wake up in the next few years until the next video. 09:32.330 --> 09:32.890 Happy the.