Moderate Chat Content with Swift on AWS Lambda

Building a chat application with content moderation capabilities using Swift Lambda and Stream's chat API involves creating a system to filter out sensitive information such as credit card numbers. The tutorial explains how to set up a basic iOS chat app and configure Swift Lambda to handle POST requests by modifying the serverless.yml file. It details creating a function to redact credit card numbers from messages using regular expressions and integrating this function into the main.swift file to modify incoming messages. The configured system involves setting up the Presend Webhook URL with Stream Chat REST API using necessary credentials like an API Key and JWT. Once the code is deployed, it allows for fast iteration and testing to ensure that sensitive data like credit card numbers are replaced with asterisks in the chat app. The guide also suggests exploring further use cases with Swift Lambda for more advanced functionalities in chat applications.