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Copying S3 Bucket Objects to Another AWS Account

  • Jun 5, 2018
  • AWS, DevOps

In some cases, you may need to transfer your objects in one of your Amazon S3 buckets to a different AWS account. AWS CLI provides high-level commands on S3 to move objects between two buckets. By also using Amazon S3 bucket policies, you can perform this even if the destination bucket is in another AWS account. Today, I will talk about the steps you need to do along with a few explanation on bucket and object level permissions. ... read more

Sending SMS Messages with Amazon SNS, AWS Lambda and Python

  • May 23, 2018
  • AWS, Serverless, Python

Did you know that you can send SMS messages easily with Amazon SNS without subscribing any phone numbers to a topic? Let’s say that you have verified phone numbers and you would like to send text messages to them assuming that they opted in for this. Besides, you would like to pay only when you send. You can use Amazon SNS SDK for Python and automate this process using AWS Lambda. ... read more

Triggering AWS Step Functions by AWS API Gateway Calls

  • May 8, 2018
  • AWS, Serverless

If you recall, in a previous blog post I discussed AWS Step Functions as a great service for orchestrating your AWS Lambda functions by giving an example. Today, I will show you how you can integrate your API Gateway resource methods with your AWS Step Functions state machines so that you can trigger your state machines with API calls.

Actually the benefits are obvious. Instead of serving our Lambda functions as separate endpoints and orchestrating which one to call and when in our front end; we can use a single endpoint and pass all logic to the back end. Then our back end, in this case our state machine, will execute the functions in sequential or parallel. This method especially suits well to cases when all these function calls are necessary to complete a single business action.

... read more

Increasing Email Deliverability When Using Amazon SES

  • Apr 9, 2018
  • AWS, DevOps

Increasing Email Deliverability When Using Amazon SES

Amazon Simple Email Service (SES) is one of the first AWS services I started using. It allows you to send automated emails without maintaining your email servers. It is scalable, easy to use with AWS SDKs and cost-effective.

However, you need to do more than verifying your domain on Amazon SES for your emails not to end in your users’ spam folder. In this blog post, I will discuss how you can increase the deliverability of your emails by setting DKIM and SPF authentications on Amazon SES. ... read more

An Introduction to Amazon Cognito User Pools

  • Feb 7, 2018
  • AWS, Serverless

When you build a new application, developing a secure, scalable user pool and authorization mechanism is a necessity and it takes time and effort to build. Sometimes, it even delays the development of the core features of your application that will bring the actual value to your business.

Amazon Cognito provides a scalable and secure user pool that you can create and use in your mobile and web applications. It provides a hosted user interface and SDKs for sign in and sign up actions. It has many features such as sending verification emails, SMS messages to your users. In this blog post, I will discuss how you can create an Amazon Cognito User Pool to use as an authentication mechanism in your applications. ... read more