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In this video we are going to develop get all products method for product lambda microservices with

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using dynamo DB client object from the SDK libraries.

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So let's get started.

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Before start, I would like to show you where we are using commands and libraries.

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You can see that this is the SDK document for JavaScript three and we are using Dynamo DB Client Library

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and this video we will use second command because we are going to get all products from the Dynamo DB

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table.

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In that case we will use the can command and see the input parameters in here and we will set these

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kind of properties when interacting with second command.

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So please open the widget to your code and go to index js file in the last video we implement get product.

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This time we will implement get all products.

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So please scroll down and after the gate product method we will implement get all products in here.

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So for that purpose let me copy and paste and after that I will explain.

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These methods, you can see that this is the get all products that we are using the asynchronous method

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and in the first line we will log this operation and after that we are covering the three below to use

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the Amazon cloud.

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If there is an exception, we will see the logs on Amazon Cloud Logs.

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That's why we covered the case below.

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And we will prepare for the parameters and paste the parameters to the scan command and using the dynamic

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DB client, send operation and return back the items and we log the items and return back the items

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to the get all products method.

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So now let's import required statements.

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So for example, we will use dynamic DB client.

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We have already import this statement.

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You can come here and see at the beginning of the page we can see that we are using dynamic DB client

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object and we have import Marshall and Marshall operation.

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And if you scroll down this time we should import also a scan command.

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We can come here, click the control space and import or I'm going to copy the scan command and go on

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top of the page and put here comma and paste scan command.

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So that means we are using scan command from the client base dynamic DB library.

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So if you scroll down, you can see that this becomes green.

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That means we have import successfully.

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So in this stage I would like to emphasize that in here and also in the get product method, we are

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getting the table name from the process environment dynamo DB table variable.

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So that means this is the value comes from the environment.

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Variables of the lambda function is you remember that when we have defined the lambda function we basically

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create environment variables for the dynamo DB tables.

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You can check for the product function, go to configuration, go to environment variables, see that

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Dynamo DB table is here and value is a product.

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So that means we will scan and also get item command in here in the table name parameter comes from

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the lambda environment variables in here.

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That's why we use Dynamo DB table name and process dot and we provide to get environment variables from

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the lambda function and set in here.

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Okay.

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As you can see that we have develop get all products method and it is very similar to that product method.

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The only difference is the command that we use second command in here for getting all products.

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We use second command for getting one command.

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We use get item command with placing the parameters.

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So the idea is the same.

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You should think the Dynamo DB is a great resource and Dynamo DB exposing APIs for these kind of actions.

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And we call these APIs using the HDC package with to command objects and using the Dynamo DB client

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send method.

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So let's get started.

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Implement other methods.