Jaewoo AhnAmazon API Gateway: WebSocket API + CloudFront FunctionIn Amazon API Gateway, WebSocket API offers a regional endpoint only while REST API offers Edge-optimized endpoint and Private endpoint in…Jul 25, 20231Jul 25, 20231
Jaewoo AhnAWS Lambda Function URLs — Another way to create HTTP endpoint for a Lambda functionAWS released Lambda Function URLs (aka Lambda FURLs or just Lambda URLs), which gives you another ability to create a HTTP endpoint for a…Apr 8, 20221Apr 8, 20221
Jaewoo AhnLesson learned while I’m using CDKTo be honest, I hadn’t much used CloudFormation, SAM, nor CDK. It is somewhat shameful to say as an engineer who works in AWS, but mostly I…Mar 17, 2022Mar 17, 2022
Jaewoo Ahn“Deployment” in Amazon API GatewayFor newbie to Amazon API Gateway, one of most frustrating experiences is related to its deployment. Here is an illustrated dialogue. Sounds…Mar 4, 20221Mar 4, 20221
Jaewoo AhnLow hanging fruit to reduce API Gateway to Lambda latencyAre you latency-obsessed? Even if you are not, there is no harm in reducing your latencies, right? In this post, I’ll introduce one of the…Sep 23, 20212Sep 23, 20212
Jaewoo AhnAmazon API Gateway: Explaining HTTP Proxy in HTTP APIA year ago, I wrote a post to explain Lambda Payload version 2.0 in HTTP. This time, this long over-due post will explain how HTTP Proxy…Sep 16, 20211Sep 16, 20211
Jaewoo AhnAmazon API Gateway: Enhanced Observability via access logsThe logging is an essential tool to debug any issue. This is also true when you use API Gateway, and try to diagnose the latency and…Aug 15, 2020Aug 15, 2020
Jaewoo AhnWebSocket API: Sec-WebSocket-Protocol (Subprotocol) header supportAs of today, API Gateway allows to set Sec-WebSocket-Protocol header in $connect routeJun 17, 20201Jun 17, 20201
Jaewoo AhnWebSocket API: What does it mean that $disconnect is a best-effort event?Amazon API Gateway’s WebSocket API provides $connect and $disconnect routes to handle the initial upgrade (handshake) request and the…Apr 25, 20202Apr 25, 20202
Jaewoo AhnAmazon API Gateway: Explaining Lambda Payload version 2.0 in HTTP APIHTTP API has been GA on Mar 12. The blog described new features and changes including Lambda payload version 2.0 which would be used by…Mar 15, 20201Mar 15, 20201