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In this video, we are going to do our hands on lab, which is the using animals on the trigger to invoke

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a lambda function and persist on Dynamo db.

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So a double Islam that integrates with other services to invoke functions or take other actions.

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So as you remember that we will using the animals in history to trigger invoke lambda function and persist

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on dynamic DB.

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Here you can find the architecture that we will implement in this section.

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So basically we will follow these steps.

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We will upload object into bucket and after that these will be asynchronous to invoke our lambda function

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in response to resource lifecycle events.

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And after that you will save uploaded file metadata in Dynamo DB.

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Also, you can follow the slide in here.

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In the client application, we will upload object in Amazon S3 bucket and bucket will be load V to objects

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and when we upload object into the bucket, this will be file and even to the lambda function which

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is the object uploaded event and this event trigger and invoke lambda function asynchronously.

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And in the lambda function code we will perform our business logic.

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This will be saved into the uploaded file metadata into the Dynamo DB database and response back to

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the lambda.

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Since it is a asynchronous flow, there is no synchronous response to the client application.

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We will check the uploaded event stored in Dynamo DB or not from the management console.

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Okay.

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As you know that when we implement any architecture on a place, we have two main steps.

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The first part is create infrastructure on a cloud, and the second part is develop the actual code

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for interacting S3 and dynamic DB.

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So we will start with the first step.

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Let's create these architecture infrastructure on the cloud, and after that we will write lambda function

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code.