How to Build a Serverless App with S3 and Lambda Function

Serverless App with S3 and Lambda Function

What is Serverless? Serverless is a native architecture of the cloud that allows you to shift more of your operational and functional responsibilities to AWS, increasing your agility and innovation. AWS Serverless gives you features to build and run applications with use of services without thinking about servers. Service we are going to use from AWS to build a serverless…
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Understanding of SES-SQS


-The full form of AWS SES is Simple Email Services. -To send email with SES is too easy and straightforward. -To prevent spamming by default its only provides us a sandbox environment. -In free tier (sandbox) account, you can send and receive emails from verified email addresses only. -Please find below steps to configuration with…
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Create API using Express JS and Sequelize


Introduction to ORM Sequelize.js an ORM (Object/Relational Mapper) which provides easy access to MySQL, MariaDB, SQLite or PostgreSQL databases by mapping database entries to objects and vice versa. It has very powerful migrations mechanism that can transform existing database schema into a new version. It also provides database synchronization mechanisms that can create database structure by specifying…
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The Power of Generics : Swift


One of the most powerful features introduced in Swift was Generics. Generics are used to avoid duplication and to provide abstraction. The generic code allows you to write flexible, reusable functions and data types that can work with any type that matches the defined constraints. Swift standard libraries are built with generics code. Swift’s ‘Array’ and…
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Higher order functions in Swift


Higher-order functions are functions that can accept other function or closure as parameters. I’ll introduce some very useful higher-order functions. Those functions are Map, Filter, Reduce, Sorted, CompactMap, Chaining, Contains. Other new higher-order functions were introduced in Swift 4.2. Those functions are AllSatisfy, FirstIndex, LastIndex and RemoveAll. Map Map function can be used to loop…
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