WEBVTT 00:03.730 --> 00:08.320 Hey there, everyone had a share and log out route is one of the most easiest route to work on. 00:08.320 --> 00:12.460 But first, pay it small attention here and listen to my theory. 00:12.460 --> 00:14.260 This is very important for you. 00:14.290 --> 00:18.880 Now I see a lot of people fail in the interviews because they don't focus too much on the fundamentals. 00:18.880 --> 00:23.380 Anybody can write a log out route, but people who actually know how the log out procedure is going 00:23.380 --> 00:25.840 to work, they are most important for the company. 00:25.840 --> 00:26.920 So here this out. 00:26.920 --> 00:31.660 So far we have been working with the JWT token and one thing that you should absolutely understand about 00:31.660 --> 00:33.940 the JWT token, they are stateless. 00:33.940 --> 00:37.150 They doesn't really care who you are or who you are. 00:37.150 --> 00:42.910 Not as long as anybody who is going to have this token, he can log in as long as the token is valid. 00:42.910 --> 00:44.110 Expiry is there? 00:44.110 --> 00:48.880 So there is no way that you can manually go ahead and change that expiry once the token is being sent 00:48.880 --> 00:49.360 to the user. 00:49.360 --> 00:50.560 This is not possible. 00:50.590 --> 00:55.030 The way how you have to manage it is make sure that the token is being deleted. 00:55.030 --> 00:59.110 Now this deletion happens of course from the cookies we are going to do it because we are sending it 00:59.110 --> 00:59.920 to another cookie. 00:59.920 --> 01:04.450 If you are storing these tokens into your application on the front end side, it is the responsibility 01:04.450 --> 01:10.870 of the front end developer to remove those tokens from the local storage or wherever he is storing that 01:10.870 --> 01:15.520 now again for the same reason, some people like to store these tokens into the back end and try to 01:15.520 --> 01:16.600 back and forth save it. 01:16.600 --> 01:18.690 But I think that is not an efficient way. 01:18.700 --> 01:23.650 Every single page you are receiving a call and you are calling to the database and then comparing it 01:23.650 --> 01:24.940 and sending it back the data. 01:24.940 --> 01:27.250 You are just wasting a whole lot of time for that. 01:27.250 --> 01:29.170 So make sure you just take care of these things. 01:29.170 --> 01:31.270 And that's all I have to say on this one. 01:31.390 --> 01:33.640 So let's go ahead and work on with this one. 01:33.940 --> 01:35.200 We're going to just shrink this one. 01:35.200 --> 01:37.510 And again, this is what we need. 01:37.510 --> 01:40.180 So let's go ahead and kind of a copy paste this one. 01:40.180 --> 01:42.580 We won't be using any of the code inside that. 01:42.580 --> 01:47.650 But again, it makes sense sometimes to me at least to have a boilerplate up and running. 01:47.650 --> 01:48.340 So there we go. 01:48.550 --> 01:52.780 This one is going to be simply log out, wrapping up with the big promise. 01:52.780 --> 01:54.940 That is all what we need now. 01:55.240 --> 02:00.460 So how we're going to work with that now we have stored these tokens into just one place. 02:00.460 --> 02:01.450 We need to clear them up. 02:01.450 --> 02:05.290 So resort cookie, this is all where we are storing that. 02:05.290 --> 02:09.220 So in the response we are going to say, Hey, you have a property known as token. 02:09.220 --> 02:12.460 The value of this token is going to now happen as null. 02:12.460 --> 02:14.800 That's all you have to do and you have cleared that out. 02:14.830 --> 02:18.640 Now, apart from this, we are going to also change the expiry date as well. 02:18.640 --> 02:21.430 So we're going to go ahead that this cookie has now expired. 02:21.430 --> 02:23.950 So we're going to go ahead and say expires. 02:23.950 --> 02:24.760 There we go. 02:25.540 --> 02:26.410 Yep, looks good. 02:26.440 --> 02:28.420 And this expires takes just the date. 02:28.420 --> 02:36.100 So we're going to say new date and we're going to provide a date dot by that date dot now and execute 02:36.100 --> 02:36.310 that. 02:36.310 --> 02:38.950 So immediately the existing date will pass on there. 02:39.100 --> 02:43.240 And apart from this, we need to pass on one more parameter which is going to be http. 02:43.240 --> 02:52.660 So http only and we have to pass on this as true now that I said this http correctly, I guess I have 02:52.660 --> 02:55.690 said it correctly into the helper method as well. 02:55.690 --> 03:01.210 Let me just quickly check that cookie token and yep, it is correct. 03:02.860 --> 03:03.370 Okay. 03:04.000 --> 03:05.500 So that's all what we got to do. 03:05.500 --> 03:09.910 And now once this cookie is all done, then we are going to send another response. 03:09.910 --> 03:13.990 Now we can change on this response, but this is all we are manipulating the cookie. 03:13.990 --> 03:15.460 We can send another response. 03:15.460 --> 03:21.460 So we're going to go ahead and say, hey, now the status is going to be 200 and we are going to send 03:21.460 --> 03:28.120 you a JSON response which says success is true and you have successfully logged out. 03:28.120 --> 03:36.070 So let's provide a message as well that's going to say log, log out success. 03:36.550 --> 03:38.440 Too many sees that figure. 03:38.440 --> 03:39.760 So log out success. 03:39.760 --> 03:41.770 Now, that's all it takes to log out. 03:41.770 --> 03:42.100 Totally. 03:42.100 --> 03:45.670 It's really simple in case you are storing it somewhere else, maybe in the database and something. 03:45.670 --> 03:49.360 So go ahead and figure out how you are going to remove those tokens from there as well. 03:49.630 --> 03:53.800 Now all it takes is really come up here and import this one up here. 03:53.800 --> 03:58.750 So let's go ahead and say, hey, we need to go ahead and bring in log out, let's duplicate this one 03:58.750 --> 04:00.640 and provide a simple route for that. 04:00.640 --> 04:01.390 Log out. 04:01.420 --> 04:03.430 Now, log out is not sending us anything. 04:03.430 --> 04:04.990 So it can be a simple get request. 04:04.990 --> 04:09.460 And the guy who is who will be handling this is going to be simply a log out. 04:09.490 --> 04:10.450 Told you that. 04:10.450 --> 04:11.080 Simple. 04:11.110 --> 04:12.670 Now it's time to test this out. 04:12.670 --> 04:16.060 So let's go ahead and move on to the postman and test this one out. 04:16.150 --> 04:19.300 So we're going to go ahead and make a copy of this one. 04:19.300 --> 04:24.700 We're going to call this one as log out and this one is going to be saved. 04:24.700 --> 04:25.870 Yeah, same place. 04:26.200 --> 04:29.020 Now, let's go ahead and change this one into a get request. 04:29.020 --> 04:32.680 Save that and the domain is going to change to log out. 04:32.680 --> 04:38.140 And in case you can remember that we got the cookies up here, this should be cleared out as soon as 04:38.140 --> 04:39.070 I make a get request. 04:39.070 --> 04:40.990 We don't need to send send any parameter. 04:40.990 --> 04:42.610 Let's send that and then we go. 04:42.640 --> 04:44.020 Cookies are cleared in the body. 04:44.020 --> 04:45.400 We got the response of success. 04:45.400 --> 04:45.900 True. 04:45.940 --> 04:46.280 Log out. 04:46.300 --> 04:47.260 Success totally. 04:47.260 --> 04:50.020 From now here onwards, the things are actually really simple. 04:50.020 --> 04:51.610 Not because they are simple. 04:51.610 --> 04:55.960 Because we have worked so hard in the entirety of the course that things are actually looking like a 04:55.960 --> 04:56.530 breeze. 04:56.530 --> 04:58.090 So that is very important. 04:58.090 --> 05:00.010 Let's go ahead and catch up in the next video.