AWS Lambda Tutorial for Beginners: Complete Tutorial

AWS Lambda Tutorial for Beginners: Complete Tutorial
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Written by Debarghya DasDecember 9, 2021
10 min read
Amazon Web Service (AWS)
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Debarghya Das

Junior Front-End Developer

In this article, you know the complete tutorial of AWS Lambda.

About AWS Lambda

Lambda is a compute service that lets you run code without provisioning or managing servers. Lambda runs your code on a high-availability compute infrastructure and performs all of the administration of the compute resources, including server and operating system maintenance, capacity provisioning and automatic scaling, code monitoring, and logging. With Lambda, you can run code for virtually any type of application or backend service. All you need to do is supply your code in one of the languages that Lambda supports.

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Working of the AWS Lambda

  • Every Lambda function runs inside its own space. After the creation of a function, it is packaged by Lambda into a container.
  • The container is then executed on a cluster of machines that are managed by the service of AWS.
  • Before running the function, the container for every function is allocated a RAM necessary to run it and the CPU’s capacity.
  • Once execution of the function stops, the RAM, which was allocated at the start of running the function, is multiplied by the time required for running itself.
  • This is how the charges are decided for the customers. It is based on the allocated memory and the run time required for completely running the code.

Amazon Web Services manages the whole infrastructure of the computing platform. There is, however, no visibility to the customers as to the operation of the system. But, there is no need for them to worry regarding the system update, failure in network connectivity, etc., as AWS itself manages everything.

Also, because AWS manages the whole service, the users save a lot of time for other operational tasks. Also, because there is no need to maintain the infrastructure, the users can develop the application’s code.

Another important property of the AWS architecture is that the users can run different instances of the same function in the same account of AWS. Also, different instances from different functions can be executed from the same account.

There are many AWS Lambda tutorials available on the internet that will give you an idea of the working of the AWS architecture.

Advantages of the AWS Lambda

  • No servers to manage: Lambda runs your code on highly available, fault-tolerant infrastructure spread across multiple Availability Zones (AZs) in a single Region, seamlessly deploying code, and providing all the administration, maintenance, and patches of the infrastructure. Lambda also provides built-in logging and monitoring, including integration with Amazon CloudWatch, CloudWatch Logs, and AWS CloudTrail.
  • Continuous scaling; Lambda precisely manages scaling of your functions (or application) by running event triggered code in parallel, and processing each event individually.
  • Millisecond metering: With AWS Lambda, you are charged for every 1 millisecond (ms) your code runs, and the number of times your code is triggered. You pay for consistent throughput or execution duration, instead of by server unit.
  • Increases innovation: Lambda frees up your programming resources by taking over the infrastructure management, allowing them to focus more on innovation and development of business logic.
  • Modernize your applications: Lambda enables you to use functions with pre-trained machine learning models to inject artificial intelligence into applications easily. A single application programming interface (API) request can classify images, analyze videos, convert speech to text, perform natural language processing, and more.
  • Rich ecosystem: Lambda supports developers through AWS Serverless Application Repository for discovering, deploying and publishing serverless applications, AWS Serverless Application Model for building serverless applications and integrations with various integrated development environments (IDEs) such as AWS Cloud9, AWS Toolkit for Visual Studio, AWS Tools for Visual Studio Team Services, and several others. Lambda is integrated with additional AWS services to provide you with a rich ecosystem for building serverless applications.

Programming Languages Supported by AWS

A lot of popular languages are supported by the AWS platform. Below is the list of the languages that are being supported by the platform:

  • Node.js 8.10
  • Node.js 10.x
  • Node.js 12.x
  • Python 2.7
  • Python 3.6
  • Python 3.7
  • Python 3.8
  • Ruby 2.5
  • Java 8
  • Java 11
  • Go 1.x
  • C# — .NET Core 1.0
  • C# — .NET Core 2.1
  • PowerShell Core 6.0

AWS is involved in maintaining these runtimes, which are provided in an environment of Amazon Linux 2 or Amazon Linux. In addition, an SDK is provided by AWS for every language that it supports. This makes the user comfortable and finds it easy to write the functions of Lambda and then integrate with the other services from AWS.

AWS Lambda Tutorial

1. Account of AWS:

This is the first thing that needs to be created for creating the Lambda function.

2. Creating a Lambda:

The function can be set up once the customer is in the console. The “Lambda” entry under the menu “compute” is to be used.

3. Finishing the Lambda creation

Python programming is used for entering the code in the console.

4. Configuration of the function

The function has to be generated.

Conclusion

AWS design is utilized to do the exercises like functional and managerial for the benefit of the clients. A ton of advantages are presented by the AWS stages, which are examined in the article. Additionally, there are a ton of employments given by AWS Lambda, like the activity of the sites, which are serverless; change of the archives quickly; backend cleaning; handling the objects of S3 that are transferred; and numerous others. Models for AWS Lambda incorporate Netflix, Localytics, REA bunch, and numerous others. With these benefits, the utilization of AWS Lambda has been expanded over endeavors in the entire world. It is quite possibly the most adaptable technology that reach from the center foundation of distributed computing to heritage applications. A whole lot of opportunities lie ahead in the use of AWS computing services.

AWS Lambda
Amazon Web Service
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