1 00:00:00,300 --> 00:00:07,440 In this section we are going to develop the microservices for performing CRUD operations with using 2 00:00:07,440 --> 00:00:09,270 a c k libraries. 3 00:00:09,270 --> 00:00:15,090 So that means we are going to focus on implementing the actual code for performing cloud functions, 4 00:00:15,090 --> 00:00:21,150 interacting with ADB using Adobe's SDK JavaScript version three libraries. 5 00:00:21,150 --> 00:00:27,270 So this is the important and this is the actual code, what we will develop for the lambda functions. 6 00:00:28,070 --> 00:00:33,560 So that means we are going to create serverless API that creates, reads, updates and deletes item 7 00:00:33,560 --> 00:00:39,200 from the Dynamo DB and we will follow the same steps what we have done in the previous sections. 8 00:00:39,200 --> 00:00:42,320 But this time the different part is lambda actual code. 9 00:00:42,320 --> 00:00:48,890 We will implement these lambda functions using the latest JavaScript version three packages and libraries. 10 00:00:48,890 --> 00:00:54,680 So if you look at the our big picture, which is the reference architecture for restful microservices, 11 00:00:54,680 --> 00:00:58,400 basically we will implement commerce product microservices. 12 00:00:58,400 --> 00:01:05,240 So this project and this will be perform crud restful microservices when accommodating the request. 13 00:01:05,240 --> 00:01:11,630 So if you look at this architecture, basically the difference is in here when developing our product 14 00:01:11,630 --> 00:01:17,890 microservices, we will use a SDK for JavaScript version three libraries in order to interact with the 15 00:01:17,900 --> 00:01:18,770 Dynamo DB. 16 00:01:19,010 --> 00:01:21,590 After that, this will be returned back the same response. 17 00:01:21,590 --> 00:01:28,290 So let me all of this architecture basically client send request to our microservices by making HTTP 18 00:01:28,310 --> 00:01:33,950 calls, Amazon API Gateway Host, RESTful HTTP request and response to the customer. 19 00:01:34,010 --> 00:01:40,070 In this scenario, we will use API Gateway and redirect to request to our lambda function. 20 00:01:40,160 --> 00:01:46,010 ADA, which is Lambda contains the business logic to process incoming API calls and leverages the dynamic 21 00:01:46,010 --> 00:01:52,610 DB as a persistent storage and Amazon Dynamo DB persistent stores, microservices, data and scale based 22 00:01:52,610 --> 00:01:53,390 on the demand. 23 00:01:53,390 --> 00:01:59,090 So that means Dynamo DB perform the cloud operations and return back to response to the client application. 24 00:01:59,600 --> 00:02:05,660 So if you look at the our service project development phase, you can see in here the first part should 25 00:02:05,660 --> 00:02:12,020 be infrastructure creation and the second part is development Lambda Microservices using the SDK libraries. 26 00:02:12,020 --> 00:02:17,900 So let me come here and first of all, we should understand our requirements and try to find the best 27 00:02:17,900 --> 00:02:19,070 way to implement it. 28 00:02:19,190 --> 00:02:22,940 So we are going to develop eCommerce product, Microsoft Source Project. 29 00:02:22,970 --> 00:02:26,510 Since this is a service project, we will have two main parts. 30 00:02:26,510 --> 00:02:34,010 So the first part is the infrastructure creation on a will is to create API, Gateway, Lambda Function 31 00:02:34,010 --> 00:02:36,080 and Dynamo DB table on the cloud. 32 00:02:36,830 --> 00:02:42,590 And the second part is develop lambda microservices to perform CRUD operations. 33 00:02:42,740 --> 00:02:50,630 In the business logic, we will use a SDK JavaScript version three with the agnostic six standards to 34 00:02:50,630 --> 00:02:53,300 implement cloud functions into our lambda function. 35 00:02:54,040 --> 00:02:59,620 So let's start the first step, which is the create infrastructure of this architecture. 36 00:02:59,620 --> 00:03:04,240 And we will continue with developing our lambda function using the latest SRC packages.