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Why To Use Aws Lambda For Scalable Mobile Backends?

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By Author: Spiral Mantra
Total Articles: 1
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What is AWS Lambda?
AWS Lambda is the serverless and event driven compute service of cloud offered by Amazon Web Services (AWS). It does not require any administration while scaling itself and code is executed in response to the events. It is one serverless computing solution that helps in relieving the load of installing and maintaining servers. It helps businesses to concentrate exclusively on development rather than infrastructure.
On the contrary with regular approaches, it serves as an alternative deployment strategy. Lambda’s main building blocks are functions that are created by developers, rather than launching apps. These operations serve as the foundation for serverless applications and can be applied to a variety of tasks or triggered by events.
Building a Mobile Backend Using AWS Lambda
Calling Lambda function is simple as it is supported by the AWS Mobile SDK for iOS and Android. As of right now, you can design the functions that react both asynchronously and synchronously (i.e., in real time) to events from your application.
Responding synchronously functions have minimal latency, ...
... allowing you to provide your users with dynamic, engaging experiences. You can use it to develop a scalable, secure, and highly available bespoke backend for your mobile app without having to maintain any infrastructure when you combine this functionality with SDK support. All you have to do is use the AWS Mobile SDK to create functions and call them from your mobile application.

The Lambda function makes it simple to construct rich, customised answers to in-app action by automatically accessing data about the device, app, and end user identity (context.clientContext and context.identity) when called through the mobile SDK.
Invoking Lambda Function from an Android App
Define methods corresponding to Lambda functions
Initiate LambdaInvokerFactory
Create Proxy Object and Invoke Lambda function
Invoking Lambda from an iOS App
Set Up AWSCognitoCredentialsProvider
Call an AWS Lambda function
Use Cases of AWS Lambda
Interactive Mobile & Web Backends: Build incredibly responsive and scalable backends for mobile and web apps using Interactive Backends. This is due to the fact that Lambda functions can be set off by various events, including user input, API calls, and modifications to data kept in DynamoDB or Amazon S3.
Machine Learning: Since AI-powered apps need a strong computing infrastructure that can handle massive amounts of data, AWS Lambda is a great option for creating these kinds of apps.
Large-Scale Data Processing: Lambda is an effective way to handle very large datasets. This covers operations including data translation, batch processing, and stream processing.
Event-Driven Applications: You may create event-driven applications with Lambda. This implies that events from sources like S3, DynamoDB, and API Gateway can be handled by your application.

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