Yan Cui

4 min read

Yan Cui for AWS Heroes

Aug 5

What’s the best way to do fan-out/fan-in serverlessly in 2024?

#aws #serverless #stepfunctions

6 min read

Yan Cui for AWS Heroes

Apr 21

How to handle execution timeouts in AWS Step Functions

#aws #serverless #stepfunctions

3 min read

Yan Cui

Apr 21

How to apply the TDD mindset to serverless

#aws #serverless #testing #lambda

3 min read

Yan Cui for AWS Heroes

Apr 3

Here are four ways you can implement WebSockets using serverless

#apigateway #appsync #aws #iotcore

6 min read

Yan Cui for AWS Heroes

Mar 23

DynamoDB now supports resource-based policies. But is that a good idea?

#aws #dynamodb #security #architecture

5 min read

Yan Cui for AWS Heroes

Mar 11

When to use Step Functions vs. doing it all in a Lambda function

#aws #lambda #serverless #stepfunctions

6 min read

Yan Cui

Mar 11

When to use API Gateway vs. Lambda Function URLs

#apigateway #aws #lambda #serverless

4 min read

Yan Cui for AWS Heroes

Feb 28

First impressions of the fastest JavaScript runtime for Lambda

#aws #javascript #lambda #serverless

5 min read

Yan Cui for AWS Heroes

Feb 21

What’s the best way to migrate Cognito users to a new user pool?

#aws #cognito #lambda #serverless

4 min read

Yan Cui

Feb 21

How to secure CI/CD roles without burning production to the ground

#aws #security #devops

6 min read

Yan Cui

Feb 21

First impressions of CloudFormation’s IaC generator and CDK migrate

#aws #cdk #cloudformation #sam

4 min read

Yan Cui

Feb 21

How would you reprocess Lambda dead-letter queue messages on demand?

#aws #serverless

2 min read

Yan Cui for AWS Heroes

Jan 10

How to create Private DynamoDB tables accessible only within a VPC

#aws #dynamodb #security

4 min read

Yan Cui for AWS Heroes

Jan 1

Year in review, 2023

#me #yearinreview

4 min read

Yan Cui for AWS Heroes

Dec 27 '23

Direct Access for Frontend Apps to AWS Services: Secure and Cost-Effective

#aws #dynamodb #s3 #serverless

7 min read

Yan Cui for AWS Heroes

Dec 18 '23

How to perform database migration for a live service with no downtime

#aws #dynamodb #serverless

3 min read

Yan Cui for AWS Heroes

Dec 12 '23

The one mistake everyone makes when using Kinesis with Lambda

#aws #kinesis #lambda #serverless

4

5 min read

Yan Cui for AWS Heroes

Nov 6 '23

How I implemented web analytics reporting with Timestream

#aws #serverless #timestream

4 min read

Yan Cui for AWS Heroes

Oct 29 '23

Serverless v4 will start charging users, but that’s a good thing

#aws #serverless

5 min read

Yan Cui for AWS Heroes

Oct 21 '23

Amplify: how to share code without Lambda Layers or private NPM

#amplify #aws #lambda #programming

4 min read

Yan Cui for AWS Heroes

Oct 12 '23

How I built an affiliate tracking system in a weekend with serverless

#apigateway #appsync #aws #dynamodb

1

5 min read

Yan Cui for AWS Heroes

Oct 6 '23

Help! How do I set DeletionPolicy to Retain for production only?

#aws #cdk #sam #serverless

4 min read

Yan Cui

Oct 2 '23

Monthly roundup – September 2023

#me #monthlyroundup

3 min read

Yan Cui for AWS Heroes

Sep 9 '23

Static IP for Lambda: ingress, egress and bypassing the dreaded NAT Gateway

#aws #lambda #serverless

5 min read

Yan Cui for AWS Heroes

Sep 4 '23

Combine Step Functions Standard and Express workflows for fun & profit

#aws #serverless #stepfunctions

2 min read

Yan Cui

Sep 1 '23

Monthly roundup – August 2023

#me #monthlyroundup

5 min read

Yan Cui for AWS Heroes

Aug 25 '23

What’s the most serverless way to wait for a slow HTTP response?

#aws #lambda #serverless

4 min read

Yan Cui for AWS Heroes

Jul 12 '23

SNS to Lambda or SNS to SQS to Lambda, what are the trade-offs?

#aws #lambda #serverless

5 min read

Yan Cui for AWS Heroes

Jul 4 '23

Are we getting infrastructure all wrong in the Serverless era?

#aws #serverless

3

3 min read

Yan Cui for AWS Heroes

Jun 19 '23

Testing Step Functions: how to skip time when testing Timeout and Wait states

#aws #programming #serverless #stepfunctions

3 min read

Yan Cui for AWS Heroes

Jun 15 '23

No, you don’t need to test every line of your CDK application

#aws #cdk #programming #serverless

6

5 min read

Yan Cui for AWS Heroes

Jun 19 '23

Is serverless overpriced? What can we learn from the PrimeVideo team?

#aws #lambda #serverless

8 min read

Yan Cui for AWS Heroes

Apr 19 '23

Are You Ready for This? Top 5 Earth-Shattering Pros and Cons of AWS CDK

#aws #cdk #serverless

10 min read

Yan Cui for AWS Heroes

Apr 9 '23

The Sky’s the Limit: Debating the Benefits of AWS Spending Restrictions

#aws

5 min read

Yan Cui

Apr 6 '23

Being independent, 4 years on

#career #me

5 min read

Yan Cui for AWS Heroes

Mar 30 '23

The Old Faithful: Why SSM Parameter Store still reigns over Secrets Manager

#aws #security #serverless

4

7 min read

Yan Cui for AWS Heroes

Mar 21 '23

3 ways to manage concurrency in serverless applications

#aws #eventbridge #kinesis #lambda

6 min read

Yan Cui for AWS Heroes

Mar 20 '23

Implementing Magic Links with Amazon Cognito: A Step-by-Step Guide

#aws #cognito #lambda #security

7

14 min read

Yan Cui for AWS Heroes

Mar 15 '23

The biggest problem with EventBridge Scheduler and how to fix it

#aws #eventbridge #lambda #serverless

8

4 min read

Yan Cui for AWS Heroes

Mar 14 '23

Passwordless Authentication made easy with Cognito: a step-by-step guide

#aws #cognito #security #serverless

11 min read

Yan Cui for AWS Heroes

Aug 18 '22

How to setup geofencing and IP allow-list for Cognito user pool

#aws #cognito #security #waf

3 min read

Yan Cui

Aug 11 '22

How to add a zoom in effect with CSS

#appsyncmasterclass #css3

1 min read

Yan Cui for AWS Heroes

Jul 18 '22

The best ways to save money on Lambda

#aws #lambda

7 min read

Yan Cui for AWS Heroes

Jul 18 '22

My testing strategy for serverless applications

#aws #lambda #programming #serverless

6

7 min read

Yan Cui for AWS Heroes

Aug 11 '22

Group-based auth with AppSync Lambda authoriser

#appsync #aws #programming #security

4 min read

Yan Cui for AWS Heroes

Jun 7 '21

How to handle client errors gracefully with AppSync and Lambda

#appsync #aws #lambda #programming

8

3 min read

Yan Cui for AWS Heroes

May 10 '21

Lambda layer: not a package manager, but a deployment optimization

#aws #lambda #programming #serverless

9

3 min read

Yan Cui for AWS Heroes

May 6 '21

How to manage Route53 hosted zones in a multi-account environment

#aws #programming #route53 #cloudformation

11

3 min read

Yan Cui for AWS Heroes

Apr 6 '21

Building a custom IAM system has made me appreciate AWS IAM even more

#appsync #aws #lambda #programming

12

7 min read

Yan Cui for AWS Heroes

Mar 28 '21

How to model one-to-many relationships with AppSync and DynamoDB

#appsync #aws #dynamodb

16

3 min read

Yan Cui for AWS Heroes

Mar 27 '21

How to secure multi-tenant applications with AppSync and Cognito

#appsync #aws #cognito #serverless

15

4 min read

Yan Cui for AWS Heroes

Mar 20 '21

The case for and against Amazon Cognito

#aws #programming #cognito

24

7 min read

Yan Cui for AWS Heroes

Mar 20 '21

How to configure environment specific parameters with Vue.js and Amplify

#amplify #aws #programming #vue

3 min read

Yan Cui for AWS Heroes

Dec 7 '20

What you need to know about Aurora Serverless v2, so far.

#aws #serverless #rds

15

2 min read

Yan Cui for AWS Heroes

Nov 18 '20

How I built a social network in 4 weeks with GraphQL and serverless

#appsync #aws #graphql

19

7 min read

Yan Cui for AWS Heroes

Nov 13 '20

“Even simple serverless applications have complex architecture diagrams”, so what?

#aws #serverless #cloud

17

3

5 min read

Yan Cui

Nov 4 '20

Production-Ready Serverless is back!

#aws #lambda #serverless