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lambda functions

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Redacting PIIs Using S3 Object Lambda

2023-06-30T01:06:40+00:00

The Challenge Data privacy is a top priority for businesses, especially amid the rising global data regulations. One common challenge is ensuring sensitive data, like personally identifiable information (PII), remains protected when data is accessed or transferred. Imagine you have a bunch of employee profiles stored as CSV files in an S3 bucket. These profiles include sensitive information such as real names, social security numbers, and email addresses, along with non-sensitive data like job titles and office locations. Various teams within your company often need to access these files for their work. For instance, HR may need to understand the [...]

Redacting PIIs Using S3 Object Lambda2023-06-30T01:06:40+00:00

Connecting your Lambda Function to a Private Database

2023-05-15T02:11:53+00:00

If you want your Lambda function to interact with resources (e.g., RDS database, EC2 instance) inside a private subnet, you won't be able to do so by default. The reason for this is that Lambda functions live in an isolated and secured VPC managed by AWS. This is why when you create a Lambda function, you don’t go through any networking configurations (VPC, subnet, ENIs), unlike when creating EC2 instances. Also, you cannot establish a VPC peering connection between the VPC where Lambda functions are run and the VPC where your private resources are located because the former is not [...]

Connecting your Lambda Function to a Private Database2023-05-15T02:11:53+00:00

Reduce The Cost Of Your Lambda Functions With Event Filters (Part 2 of 2)

2023-04-27T03:15:40+00:00

Introduction In the first part of this post, we covered the concept behind event filtering in AWS Lambda and learned how it could help you save money by invoking functions only when necessary. Now it's time to put that knowledge into practice. In this part 2, we’ll see event filtering in action using Amazon Simple Queue Service (SQS) as the event source. Overview A user sends a JSON message to the SQS queue. Event source mapping picks up the message from the queue and evaluates it against the specified filtering criteria. Event source mapping invokes the Lambda function synchronously when [...]

Reduce The Cost Of Your Lambda Functions With Event Filters (Part 2 of 2)2023-04-27T03:15:40+00:00

Reduce The Cost Of Your Lambda Functions With Event Filters (Part 1 of 2)

2023-04-27T03:17:39+00:00

Problem statement You are primarily billed based on how long your Lambda functions run and how often it is invoked. This is why AWS Lambda is great for scheduled jobs, short-duration tasks, and event-based processes. But does this mean you shouldn’t use them for high-volume traffic applications? Well, the short answer is... it depends. Whether or not to use AWS Lambda for high-volume traffic workloads ultimately depends on the requirements of your application and the cost trade-off you're willing to make. Regardless, if you ever find yourself wanting to use Lambda in a high-activity application like stream processing, it’s good [...]

Reduce The Cost Of Your Lambda Functions With Event Filters (Part 1 of 2)2023-04-27T03:17:39+00:00

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