1 00:00:00,210 --> 00:00:06,990 In this video we are going to test product microservices synchronous flow with including the API Gateway, 2 00:00:07,020 --> 00:00:10,380 Lambda function and dynamo DB table edge. 3 00:00:10,380 --> 00:00:18,120 You remember that we have already provision all these services on the cloud and upload the lambda function 4 00:00:18,120 --> 00:00:20,940 code in the product microservices. 5 00:00:21,030 --> 00:00:28,000 So let's see in the main console, see that we have uploaded our lambda function code. 6 00:00:28,020 --> 00:00:29,760 This is the our latest code. 7 00:00:29,760 --> 00:00:36,660 And if you go to API Gateway, you can see the deployed API Gateway and these are the resource and HTTP 8 00:00:36,660 --> 00:00:39,630 methods that expose from the API Gateway. 9 00:00:39,660 --> 00:00:44,310 We will trigger these URLs and invoke lambda functions and lambda function. 10 00:00:44,310 --> 00:00:50,010 Interact with the dynamic DB table to perform product microservices, cut operations. 11 00:00:50,040 --> 00:00:57,420 Please open the Visual Studio code and remember that this is the our main folder structure and I have 12 00:00:57,420 --> 00:00:59,320 created a postman folder. 13 00:00:59,340 --> 00:01:02,760 If you expand this folder, you can see the product collection. 14 00:01:02,760 --> 00:01:07,110 This is the postman collection that you can import this collection. 15 00:01:07,140 --> 00:01:08,420 Let me open the postman. 16 00:01:08,430 --> 00:01:14,430 If you come here and click the import statement and drag and drop in here, you can see these product 17 00:01:14,430 --> 00:01:19,560 microservices HTTP methods that we can run one by one. 18 00:01:19,560 --> 00:01:22,050 So let me start with the gate product. 19 00:01:22,050 --> 00:01:30,210 These URLs get from the API gateway and I'm going to send a HTTP method, as you can see that this is 20 00:01:30,210 --> 00:01:36,420 triggering the HTTP gate method and there is no product on product dynamo DB table yet. 21 00:01:36,420 --> 00:01:39,990 So these HTP get triggered get all products. 22 00:01:39,990 --> 00:01:42,510 So that means it is performed scan operation. 23 00:01:42,510 --> 00:01:46,010 You can see that we run these get all product function. 24 00:01:46,380 --> 00:01:53,110 Okay, if you come back to HTTP post request, we will create a new product onto our product dynamo 25 00:01:53,130 --> 00:01:53,970 DB table. 26 00:01:54,000 --> 00:01:57,810 To do that, I'm going to send the post request with this URL. 27 00:01:57,810 --> 00:02:03,480 And in here you can see that in the body section we provide this product JSON object. 28 00:02:03,600 --> 00:02:07,950 It is including the name, description, image file category and price. 29 00:02:07,950 --> 00:02:14,700 So if you look at the body JSON object, we don't send ID attribute for our product table on Dynamo 30 00:02:14,700 --> 00:02:15,900 DB are wrong. 31 00:02:15,900 --> 00:02:21,510 The function code should be generate naive ID with using the UUID library and create a new product item 32 00:02:21,510 --> 00:02:22,770 into our product table. 33 00:02:22,800 --> 00:02:29,370 If you check our create product method, go to method and you can see that the product ID will be generated 34 00:02:29,370 --> 00:02:30,210 into the method. 35 00:02:30,210 --> 00:02:37,440 So that's why we don't send any ID information and the other attributes will be saved on table, which 36 00:02:37,440 --> 00:02:43,500 is the product table and the ID is partition key and we have to send ID information and this will be 37 00:02:43,530 --> 00:02:45,390 handled in the create product method. 38 00:02:45,510 --> 00:02:46,230 Okay. 39 00:02:46,230 --> 00:02:46,980 Very good. 40 00:02:46,980 --> 00:02:51,780 So let me click the send button and perform the HTTP post operation. 41 00:02:52,020 --> 00:02:57,720 See that we have successfully finished this operation and this is the body information we including 42 00:02:57,720 --> 00:02:58,770 other details. 43 00:02:59,130 --> 00:03:03,690 Now we have one product on product table to check this operation. 44 00:03:03,690 --> 00:03:10,800 Please open the A management console and go to Dynamo DB table and I'm going to check product table. 45 00:03:11,820 --> 00:03:14,430 Explore items and run this command. 46 00:03:14,460 --> 00:03:21,060 See that we have created an item on the product table and the ID is generated from our Node.js Lambda 47 00:03:21,060 --> 00:03:26,760 Function code and we have successfully insert a new item into product table with using lambda function 48 00:03:26,760 --> 00:03:28,500 and triggering from the API gateway. 49 00:03:28,860 --> 00:03:34,140 So if we check the cloud looks to understand which methods are triggered. 50 00:03:34,170 --> 00:03:41,790 If you go to product function and go to monitor and we've given cloud which looks we will see the logs 51 00:03:41,790 --> 00:03:45,300 that we trigger for the get and post operation. 52 00:03:45,300 --> 00:03:52,830 If you open the latest log stream, you can see that in the last request comes for the post product 53 00:03:52,830 --> 00:03:58,140 operation and if you scroll down you can see the whole body including in here. 54 00:03:58,140 --> 00:04:04,440 So and if you scroll down you can see that for that action we are triggering to create product method. 55 00:04:04,440 --> 00:04:07,080 And these are the other details which is the response. 56 00:04:07,080 --> 00:04:14,180 So if you scroll up before we are creating any product, we are running to get all product which sending 57 00:04:14,190 --> 00:04:21,180 the HTTP, get to the only product resources and we can verify that it is going to get all products. 58 00:04:21,360 --> 00:04:21,960 Okay. 59 00:04:21,960 --> 00:04:28,620 Now if you come back to our postman collection, we can continue to our test with creating a new item 60 00:04:28,620 --> 00:04:31,320 which is the product to in here. 61 00:04:31,320 --> 00:04:36,750 As you can see that we are creating an inserting any item, any form in our product table. 62 00:04:36,780 --> 00:04:43,740 Click the send button to verify the HTTP post operation we have successfully sent to finish operation. 63 00:04:43,740 --> 00:04:50,850 Now we have two items in our product table to verify that we can run the get all products methods again. 64 00:04:50,850 --> 00:04:53,460 Come here and click the send button. 65 00:04:53,460 --> 00:04:57,840 This time we will have two products in our product table. 66 00:04:57,840 --> 00:05:05,610 As you can see, that two JSON response is coming, this HTTP get method so we can get the ID informations 67 00:05:05,610 --> 00:05:06,240 in here. 68 00:05:06,690 --> 00:05:12,240 For example, I'm going to get these ID information and run the get product by ID. 69 00:05:12,270 --> 00:05:18,420 If you come to this get product by ID, the only thing we should change is the ID information. 70 00:05:18,420 --> 00:05:24,950 At the end of the URL, we can put Slash and the ID information that we get from the HTP certificate 71 00:05:24,960 --> 00:05:28,230 operation save this file and click the HTP sign method. 72 00:05:28,380 --> 00:05:35,760 And we have verified that we successfully run get product by ID with specifying ID and get all the tests 73 00:05:35,760 --> 00:05:37,890 in the body information of the response. 74 00:05:38,100 --> 00:05:39,420 Okay, very good. 75 00:05:39,420 --> 00:05:43,200 Now we can test the update function with the put command again. 76 00:05:43,200 --> 00:05:47,490 I have an id and put command is also running product by ID. 77 00:05:47,520 --> 00:05:50,370 We can specify the id information in here. 78 00:05:51,060 --> 00:05:58,440 Say this file, but this time we can also buddy and the Jason definition, which will be which attributes 79 00:05:58,440 --> 00:06:01,350 we are going to update with this update operation. 80 00:06:01,380 --> 00:06:07,760 As you can see that I would like to update the name of the phone and if you click this product, buy 81 00:06:07,770 --> 00:06:15,120 ID now the name is the iPhone X and in the put operation we are going to update with our iPhone X and 82 00:06:15,120 --> 00:06:15,630 Y. 83 00:06:15,630 --> 00:06:19,450 So let's again, I can add the updated. 84 00:06:20,920 --> 00:06:25,060 In here, save this request and click the HTTP send request. 85 00:06:25,210 --> 00:06:29,300 So we have successfully performed the put operation to verify that. 86 00:06:29,320 --> 00:06:33,940 Go back to product, buy ID and please check this name and click to send again. 87 00:06:33,940 --> 00:06:41,070 And this time name information updated successfully with the product by ID and sending the HTTP operation. 88 00:06:41,080 --> 00:06:48,970 And lastly, I'm going to delete this product if you come here and provide the ID in the URL and save 89 00:06:48,970 --> 00:06:56,350 this file and send the HTTP delete method, it is also successfully finished the delete operation if 90 00:06:56,350 --> 00:06:59,110 you come back to get product ID and send again. 91 00:06:59,140 --> 00:07:02,230 This time we don't have any product with these ID. 92 00:07:02,260 --> 00:07:08,410 You can verify that we have two items and if we send again with running the second command, we have 93 00:07:08,410 --> 00:07:09,280 only one item. 94 00:07:09,280 --> 00:07:11,860 So that means we have successfully delete operation. 95 00:07:12,190 --> 00:07:19,060 So as you can see that we have finished all CRUD operations on the product microservices bit following 96 00:07:19,060 --> 00:07:22,240 the API gateway, lambda function and dynamic DB. 97 00:07:22,300 --> 00:07:25,120 In the next video we will clear our resources.