Beginners lesson on how to scale your Website?

So, what is Application Scalability? When your website gets too much traffic(requests per minute or queries per second) which makes the website process the requests slowly and sometimes results in crashing of the server on which it is running. To prevent failures and sluggishness add more resources on both hardware and software side that is … Continue reading Beginners lesson on how to scale your Website?

Creating and Deploying Express Web App on Azure in few steps

In this post we will see how can we setup an express web application and how to deploy an node.js based express web application. Step 1: Creating an web application in express. To create a express application skeleton we need to install express generator from npm: Check available option while creating an express app: After … Continue reading Creating and Deploying Express Web App on Azure in few steps

Resolved! – AWS Lex: ‘An error has occurred: Received error response from Lambda: Handled’

While invoking Lambda function through AWS Lex we generally get below error. An error has occurred: Received error response from Lambda: Handled There could be many reasons for this error to occur. Suppose lambda has following callback response function in node.js: Now according to the AWS docs here the fullfilmentState is a mandatory key field also … Continue reading Resolved! – AWS Lex: ‘An error has occurred: Received error response from Lambda: Handled’

AWS: Relational Database Service – RDS

Relational Database Service also known as RDS is a collection of AWS services for managed relational databases. We call the database as managed because AWS takes care of: Scheduled automated backups Simple Software Backups Managed infrastructure for the database If your database is hosted on EC2 then you have to figure out about database backups, … Continue reading AWS: Relational Database Service – RDS