# Connecting Block Business Units with AWS API Gateway

DevFeed: [Connecting Block Business Units with AWS API Gateway](<https://devfeed.tech/articles/connecting-block-business-units-with-aws-api-gateway-15584.md>)

Original publisher: [Read original article](<https://developer.squareup.com/blog/connecting-block-business-units-with-aws-api-gateway>)

Author: Michael Weissbacher

Published: 2023-05-18T13:00:00Z

Content type: article

Language: en

Sources: [Square Corner Blog RSS Feed](<https://devfeed.tech/sources/square-corner-blog-rss-feed.md>)

Topics: [Amazon API Gateway](<https://devfeed.tech/topics/amazon-api-gateway.md>), [Amazon Web Services](<https://devfeed.tech/topics/aws.md>), [Security](<https://devfeed.tech/topics/security.md>), [SPIFFE](<https://devfeed.tech/topics/spiffe.md>), [SPIRE](<https://devfeed.tech/topics/spire.md>)

Tags: [api-gateway](<https://devfeed.tech/tags/api-gateway.md>), [aws](<https://devfeed.tech/tags/aws.md>), [aws-api-gateway](<https://devfeed.tech/tags/aws-api-gateway.md>), [engineering](<https://devfeed.tech/tags/engineering.md>), [network](<https://devfeed.tech/tags/network.md>), [security](<https://devfeed.tech/tags/security.md>), [spiffe](<https://devfeed.tech/tags/spiffe.md>), [spire](<https://devfeed.tech/tags/spire.md>)

## AI overview

This article explains how Block integrates acquired companies with its internal service mesh using AWS API Gateway as an identity translation layer. The Farcars infrastructure maps acquisition-native identities and IAM-based SigV4 calls to Block-native mutual TLS, enabling isolated and reusable cross-mesh communication.

## Source excerpt

Secure cross-mesh communication using in-mesh bastions