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In this video, we are going to understand Amazon S3 interactions working with the buckets and objects

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before we developing Node.js Lambda functions.

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We should understand the basics of the S3.

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After that, it will be very clear to interact with S3 from our Node.js lambda functions.

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So the idea is that you should think Amazon S3 as a resources and S3 exposed available APIs that we

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can call from our Lambda functions.

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We're using a SDK.

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So let's see how can how we can interact Amazon S3 interactions working with the buckets and object.

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For that reason, we should read the official documentation.

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If you open the official documentation, basically you can see that this is the Amazon S3 Rest API documentation.

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That is the API documentation that expose these APIs to perform actual operations into S3.

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And if you click these, expand these link and see the actions, basically the Amazon S3 API are grouped

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into three sets Amazon S3, Amazon S3 control, Amazon S3 on outposts.

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So in general, APIs that apply bucket and object level actions are in the Amazon S3 set, and the API

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did API accountable actions in the S3 control set.

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And also we can use the S3 outpost to create a set of buckets on a list.

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Amazon are supposed to easily store and retrieve object on premises, so these are the main sets from

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the actions of the Amazon.

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S3 So after we have learned the basics, we can see that how we can interact these methods for our Lambda

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functions or Node.js functions using the SDK.

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If you come here, that means if you click the Amazon S3, the main part, you can see the list of the

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actions that is performing from the Amazon S3 These are the Web services that expose from the Amazon

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S3 You can see the create bucket, delete bucket, for example, see the create bucket.

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If you scroll down, you can see the an example structure, how we can send the request of these create

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bucket operations.

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And these are the parameters that we can get the detailed information.

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So delete bucket and you can scroll down and see the create object, delete object, upload object and

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get bucket policy and so on.

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So these are the lists of the Amazon S3 Web services that expose from the Amazon S3 API that we will

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use during the course with these actual APIs to perform our use cases.

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So after that, after learn the basic APIs from the Amazon S3, we can think about that, how we can

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interact these Web services from our Lambda function or Node.js function.

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We're using the SDK libraries for that purpose is you remember that we have S3 client library from the

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SDK for JavaScript version three.

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So we will use these client S3 package in order to perform all this action.

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So you can scroll down and see the example usage in here.

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And also in the right hand side, you can see the command section.

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So this command is representing to our actual operations, for example, create bucket and so on.

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See that Amazon S3 has create bucket.

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And in the SDK package, most probably we have create bucket command.

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So this command is invoke the create bucket of the Amazon S3 API.

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That means we will use these S3 client NPM packages in order to interact with the Amazon S3 and perform

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use cases.

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So this is our way of working to identify our interactions and see the example course and apply the

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best practices and develop our lambda functions are using a basic libraries.

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Now we will follow these informations and start to develop our Node.js project with using a basic JavaScript

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version three to interact with the Amazon S3.