# Implementing dynamic feature flags with AWS AppConfig on AWS Lambda

DevFeed: [Implementing dynamic feature flags with AWS AppConfig on AWS Lambda](<https://devfeed.tech/articles/implementing-dynamic-feature-flags-with-aws-appconfig-on-aws-lambda-4664.md>)

Original publisher: [Read original article](<https://aws.amazon.com/blogs/compute/implementing-dynamic-feature-flags-with-aws-appconfig-on-aws-lambda/>)

Author: Daniel Abib

Published: 2026-08-14T16:25:51Z

Content type: tutorial

Language: en

Sources: [AWS Compute Blog](<https://devfeed.tech/sources/aws-compute-blog.md>)

Topics: [AWS Lambda](<https://devfeed.tech/topics/aws-lambda.md>), [Serverless](<https://devfeed.tech/topics/serverless.md>), [experiments](<https://devfeed.tech/topics/experiments.md>), [configuration](<https://devfeed.tech/topics/configuration.md>), [Latency](<https://devfeed.tech/topics/latency.md>)

Tags: [a-b-testing](<https://devfeed.tech/tags/a-b-testing.md>), [advanced-300](<https://devfeed.tech/tags/advanced-300.md>), [aws](<https://devfeed.tech/tags/aws.md>), [aws-lambda](<https://devfeed.tech/tags/aws-lambda.md>), [feature](<https://devfeed.tech/tags/feature.md>), [feature-flags](<https://devfeed.tech/tags/feature-flags.md>), [how-to](<https://devfeed.tech/tags/how-to.md>), [latency](<https://devfeed.tech/tags/latency.md>), [real-time](<https://devfeed.tech/tags/real-time.md>), [serverless](<https://devfeed.tech/tags/serverless.md>), [technical-how-to](<https://devfeed.tech/tags/technical-how-to.md>)

## AI overview

A tutorial on implementing dynamic feature flags with AWS AppConfig on AWS Lambda. It explains how feature flags support safe deployments, experiments, gradual rollouts, and changes without redeploying functions, using the AWS AppConfig Lambda extension to cache configuration locally and reduce latency.

## Source excerpt

Feature toggles allow you to change application behavior in real time without deploying new code. Learn how to implement dynamic feature flags with AWS AppConfig on AWS Lambda for safe deployments, gradual rollouts, and instant rollback.