Create Your First AWS Lambda Function | AWS Tutorial for Beginners

One of the most popular services on AWS is Lambda, which lets you run code in response to some event, without having to worry about the underlying servers.

In this video, I’ll provide a short overview of Lambda, its benefits, and why you would use it. Then in a hands-on tutorial, I’ll walk through how to create a Lambda function (in Python 3.9) that’s triggered by a file upload to an S3 bucket. Finally, I’ll show you how to delete the S3 bucket and the Lambda function.

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Also check out these other videos:

00:00 – Overviewing an AWS Lambda scenario
00:37 – What is serverless computing?
02:04 – Benefits of using AWS Lambda
02:48 – Introducing the AWS Lambda tutorial
03:07 – Overviewing AWS Lamba pricing and the Free Tier
03:32 – Creating an S3 bucket in the AWS Management Console
04:21 – Creating an AWS Lambda function in the AWS Management Console
06:13 – Updating and deploying code in an AWS Lambda function
07:29 – Creating a trigger for an AWS Lambda function
08:41 – Understanding events and permissions on a Lambda trigger
09:45 – Uploading to S3 to trigger a Lambda function
10:14 – Monitoring a Lambda function with CloudWatch Metrics and Logs
11:41 – Deleting an S3 bucket and a Lambda function

[TinyTechnicalTutorials]

What else do you want to learn about AWS? Let me know below in the comments!

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[technofilejr]

Very nice. I've worked as a business analyst or product owner on AWS projects for years. Never actually wrote a lambda function. Your description of the process was very concise and easy to follow.

[scofah]

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[andrews]

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[flightscapeaviationphoto]

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[samjones]

Wow!!! I so understand now how a "Trigger" works!!! This is something I didn't fully get without seeing it in action! Thank u so much for shedding light on Lambda and S3!!! You Rock!!!😁

[jessikabeauregard]

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[AhmedGadd]

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[luisalbertogarciaibarra]

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Thank You.

[dheeraj]

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[sivaswargam]

Tutorial is clear and crisp. Thank you!

[PauloMerson]

Great video! 👏👏👏 Strictly speaking, AWS lambda has the benefit of automatic *horizontal* scalability (or elasticity), so it's (auto)scaling *out/in*. It's not vertical scalability (scaling up/down). Also important is to mention the challenges (not necessarily disadvantages), such as cold starts, which you experienced in the demo after the first upload. Special kudos for reminding us to delete resources at the end of your videos! 🙏

[herok]

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