1 00:00:00,360 --> 00:00:04,290 -: Okay, so we've reached the end of this course. 2 00:00:04,290 --> 00:00:07,650 So let's have a short wrap up of what we've learned. 3 00:00:07,650 --> 00:00:11,220 So first we discussed about why REST API. 4 00:00:11,220 --> 00:00:13,860 So we said that REST API is currently 5 00:00:13,860 --> 00:00:18,120 the defacto standard API for web APIs. 6 00:00:18,120 --> 00:00:21,780 It is used by all major websites. 7 00:00:21,780 --> 00:00:23,640 Developers come to expect it. 8 00:00:23,640 --> 00:00:27,270 So when a developer would like to use your website's API, 9 00:00:27,270 --> 00:00:31,656 he or she will assume that the API is a REST API. 10 00:00:31,656 --> 00:00:34,380 REST API is supported by all platforms 11 00:00:34,380 --> 00:00:37,830 so it doesn't matter which platform you are developing on. 12 00:00:37,830 --> 00:00:41,520 It probably has libraries for exposing REST API. 13 00:00:41,520 --> 00:00:44,640 REST API also is one of the top skills today 14 00:00:44,640 --> 00:00:45,473 in the industry. 15 00:00:45,473 --> 00:00:47,490 So there is a lot of demand 16 00:00:47,490 --> 00:00:51,840 for developers with experience and knowledge about REST API. 17 00:00:51,840 --> 00:00:55,050 And REST API is very easy to implement. 18 00:00:55,050 --> 00:00:56,973 So again it doesn't matter which platform 19 00:00:56,973 --> 00:00:58,710 you are developing on, 20 00:00:58,710 --> 00:01:01,170 the implementation of REST API as opposed 21 00:01:01,170 --> 00:01:06,170 to other APIs such as GraphQL or SOAP is very simple. 22 00:01:06,180 --> 00:01:08,550 So what we've learned in this course, 23 00:01:08,550 --> 00:01:11,250 we began with the obligatory welcome lecture 24 00:01:11,250 --> 00:01:13,470 and then we talked about API basics, 25 00:01:13,470 --> 00:01:17,040 what is an API and where should we use it. 26 00:01:17,040 --> 00:01:20,310 We also talked about various types of API 27 00:01:20,310 --> 00:01:23,130 and then we talked about web APIs. 28 00:01:23,130 --> 00:01:25,740 We compared various web API types such 29 00:01:25,740 --> 00:01:30,180 as SOAP, REST, GraphQL, and GRPC. 30 00:01:30,180 --> 00:01:33,750 And then we started to talk specifically about REST. 31 00:01:33,750 --> 00:01:37,031 So we first covered the basics of REST 32 00:01:37,031 --> 00:01:41,040 and before continuing on to deep dive into 33 00:01:41,040 --> 00:01:42,600 the REST specifications, 34 00:01:42,600 --> 00:01:46,380 we introduced ourselves to Beeceptor and Postman 35 00:01:46,380 --> 00:01:49,083 which we'll be using later in this course. 36 00:01:50,460 --> 00:01:53,220 After that, we started talking about the HTTP verbs. 37 00:01:53,220 --> 00:01:56,247 We explained the main verbs and the role 38 00:01:56,247 --> 00:01:58,890 and when should we use each one of them. 39 00:01:58,890 --> 00:02:02,400 And then we started talking about the URL structure 40 00:02:02,400 --> 00:02:04,950 which is probably the most important topic 41 00:02:04,950 --> 00:02:06,450 in this whole course. 42 00:02:06,450 --> 00:02:09,840 So in the URL structure, we analyzed a well thought 43 00:02:09,840 --> 00:02:14,550 of URL of an API and explained the values parts of this URL. 44 00:02:14,550 --> 00:02:17,220 We then began to talk about response codes. 45 00:02:17,220 --> 00:02:20,397 We talked about the three groups of the response codes 46 00:02:20,397 --> 00:02:24,123 and understood when should we use each one of those. 47 00:02:25,830 --> 00:02:27,930 Our next topic is the documentation. 48 00:02:27,930 --> 00:02:32,310 We talked about Swagger or open API as it is called today 49 00:02:32,310 --> 00:02:34,260 explained why it's important 50 00:02:34,260 --> 00:02:36,543 and even demonstrated how to use it. 51 00:02:37,380 --> 00:02:39,480 Versioning was our next topic. 52 00:02:39,480 --> 00:02:40,710 We talked about again, 53 00:02:40,710 --> 00:02:45,120 the importance of versioning and discussed various patterns 54 00:02:45,120 --> 00:02:48,090 of where the version should be in the API 55 00:02:48,090 --> 00:02:52,806 whether in the URL, the query parameters, or the header. 56 00:02:52,806 --> 00:02:55,950 Our next topic was Authentication and Authorization 57 00:02:55,950 --> 00:02:58,710 with special focus on 0 of 2 58 00:02:58,710 --> 00:03:01,560 We explained the flow of authentication and authorization 59 00:03:01,560 --> 00:03:02,850 with O of two. 60 00:03:02,850 --> 00:03:04,860 We talked about the JWT, 61 00:03:04,860 --> 00:03:06,297 the Jason web token 62 00:03:06,297 --> 00:03:09,270 and explained what is the API role 63 00:03:09,270 --> 00:03:10,833 in the authentication flow. 64 00:03:11,850 --> 00:03:14,760 When talking about performance, we discussed some techniques 65 00:03:14,760 --> 00:03:17,611 to improve the performance of the API 66 00:03:17,611 --> 00:03:22,080 and also emphasized that performance is not strictly 67 00:03:22,080 --> 00:03:25,122 an API topic but is more related to the underlying code 68 00:03:25,122 --> 00:03:27,120 of the API. 69 00:03:27,120 --> 00:03:29,550 With monitoring, we explained what exactly should be 70 00:03:29,550 --> 00:03:31,080 monitored in the API. 71 00:03:31,080 --> 00:03:34,039 We talked about things such as request per second, 72 00:03:34,039 --> 00:03:38,370 latency failures, CPU, RAM, and more. 73 00:03:38,370 --> 00:03:41,790 And we even saw a demo using the Azure application insight 74 00:03:41,790 --> 00:03:43,710 of monitoring. 75 00:03:43,710 --> 00:03:46,890 Later on we discussed the advanced topic and we talk 76 00:03:46,890 --> 00:03:51,060 about the head to us with a demo using the Genie application 77 00:03:51,060 --> 00:03:52,230 from Netflix. 78 00:03:52,230 --> 00:03:55,144 And we discussed the API gateway and the discovery 79 00:03:55,144 --> 00:03:56,223 patterns. 80 00:03:57,240 --> 00:04:01,290 And here we are as a conclusion of this course. 81 00:04:01,290 --> 00:04:04,020 So I really hope this course was helpful to you 82 00:04:04,020 --> 00:04:06,357 and I'm sure you can now design and build 83 00:04:06,357 --> 00:04:10,399 a much better REST API which is easier to use, 84 00:04:10,399 --> 00:04:11,820 easy to understand, 85 00:04:11,820 --> 00:04:15,450 and very attractive for the developers using it. 86 00:04:15,450 --> 00:04:16,950 As I've mentioned before, 87 00:04:16,950 --> 00:04:19,740 I want this course to be as practical as possible 88 00:04:19,740 --> 00:04:23,460 and for this exact reason I've prepared a special checklist 89 00:04:23,460 --> 00:04:25,350 which you can download right now. 90 00:04:25,350 --> 00:04:28,620 This checklist will guide you on your REST API journey 91 00:04:28,620 --> 00:04:31,380 and it contains all the practical knowledge learned 92 00:04:31,380 --> 00:04:32,850 in this course. 93 00:04:32,850 --> 00:04:35,910 Using this checklist we ensure the REST API you design 94 00:04:35,910 --> 00:04:38,040 will be professional, easy to use, 95 00:04:38,040 --> 00:04:40,530 and very attractive for developers. 96 00:04:40,530 --> 00:04:43,110 So don't forget to download it at the end 97 00:04:43,110 --> 00:04:46,170 of this course and I'm sure it'll come handy when 98 00:04:46,170 --> 00:04:48,690 you will design your own REST API. 99 00:04:48,690 --> 00:04:51,748 So take a look now at the resources of this lecture 100 00:04:51,748 --> 00:04:54,300 and download the checklist that will make your 101 00:04:54,300 --> 00:04:58,233 life much easier when designing great REST API. 102 00:04:59,070 --> 00:05:02,550 So thanks so much and if you have any questions 103 00:05:02,550 --> 00:05:05,010 or any comments, feel free to be in touch 104 00:05:05,010 --> 00:05:08,490 and I promise to answer any question that you will send me. 105 00:05:08,490 --> 00:05:10,833 So thank you and goodbye.