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Crespo Wang
Crespo Wang

92 Followers

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Published in Geek Culture

·Apr 8, 2021

Work with S3 Object Lambda in Typescript

Recently AWS announced S3 Object Lambda, which enables data processing as it is being retrieved from S3. By using S3 Object Lambda, you can easily present multiple views from the same dataset, and you can update the Lambda functions to modify these views at any time. For example, we have…

Typescript

3 min read

S3 Object Lambda in Typescript
S3 Object Lambda in Typescript
Typescript

3 min read


Dec 11, 2020

Use Slack to Monitor SQS Dead-Letter Queue

AWS SQS plays a significant role in modern application architecture, especially in a serverless environment. When working with SQS, it is often to see messages failed to be consumed, it could be a bug in your code, a temporary resource restriction, eg API rate exceeded, or dependencies in the messages…

AWS

5 min read

Use Slack to Monitor SQS Dead-Letter Queue
Use Slack to Monitor SQS Dead-Letter Queue
AWS

5 min read


Published in ITNEXT

·Aug 27, 2020

Work with AWS RDS Proxy

In Jun 2020, AWS announced that RDS Proxy is generally available for both MySQL and PostgreSQL engine compatibility. It is a significant milestone for AWS serverless ecosystem because for many serverless architectures, making DB serverless is not an easy task, now with RDS Proxy, the task is no longer as…

AWS

4 min read

Work with AWS RDS Proxy
Work with AWS RDS Proxy
AWS

4 min read


Published in JavaScript in Plain English

·May 25, 2020

Use Lambda@Edge + JWT to secure S3 bucket

It is a common use case to secure your S3 assets behind CloudFront, so that the assets can only be accessed via CloudFront. Normally it can be done by adding OAI to the CloudFront distribution, and use CloudFront signed URL to access the assets. Lambda@Edge provides new thinking to achieve…

Lambda

5 min read

Use Lambda@Edge + JWT to secure S3 bucket
Use Lambda@Edge + JWT to secure S3 bucket
Lambda

5 min read


Mar 25, 2020

Host S3 website using AWS SFTP

There are numerous hosting providers that allow you to host your website on their server and enable you to manage your website files using SFTP. If you happen to have an AWS account and enjoy DIY, you can easily setup S3 website + SFTP within a few minutes. S3 Website Create an…

AWS

4 min read

Host S3 website using AWS SFTP
Host S3 website using AWS SFTP
AWS

4 min read


Published in The Startup

·Feb 25, 2020

Create PDF using Pdf-lib on Serverless AWS Lambda

I’ve written quite a few How-To-Create-PDF-using-X-on-Serverless-AWS-Lambda posts, covered wkhtmltopdf, Chromium Puppeteer and Pdf-Kit, and I’ve been getting some requests asking to write articles on other libraries. Pdf-lib is one of them. To be honest, I wasn’t aware of PDF-LIB before, it’s a fairly new solution comparing with the others, but…

Java Script

5 min read

Create PDF using Pdf-lib on Serverless AWS Lambda
Create PDF using Pdf-lib on Serverless AWS Lambda
Java Script

5 min read


Feb 14, 2020

Create PDF using PdfKit on Serverless AWS Lambda with Layer

Pdfkit is a popular tool for manipulating PDF, and running it on AWS Lambda makes it even more powerful because of the benefits from being serverless, but it can be a bit tricky to set up from the ground. As always I use Serverless framework to manage the AWS resources…

Lambda

4 min read

Create PDF using PdfKit on Serverless AWS Lambda with Layer
Create PDF using PdfKit on Serverless AWS Lambda with Layer
Lambda

4 min read


Jan 7, 2020

Create PDF using Chromium Puppeteer in Serverless AWS Lambda using layers

It’s been a while since the last time I published the solution, tech evolves fast, now it’s time for an overhaul.

AWS Lambda

4 min read

Create PDF using Chromium Puppeteer in Serverless AWS Lambda
Create PDF using Chromium Puppeteer in Serverless AWS Lambda
AWS Lambda

4 min read


Nov 14, 2019

How does improved VPC help reducing Lambda cold start

AWS announced the improvement on VPC networking for Lambda in September, since then I’ve been checking the updates every day, it finally arrives Sydney region! Cold start issue has been the №1 blocker for many companies that are going Serverless, at Inquisitive we paused the steps going full Serverless, we…

AWS

3 min read

How does improved VPC help reducing Lambda cold start
How does improved VPC help reducing Lambda cold start
AWS

3 min read


Sep 17, 2019

Lesson learned from using AWS Credits

AWS is pretty generous on giving credits to startups, to help them cover the AWS bills in their early days (well you know so that they can grow deeply within AWS platform, and eventually AWS will get you to pay the bill with real money). This program is called AWS…

AWS

2 min read

Lesson learned from using AWS Credits
Lesson learned from using AWS Credits
AWS

2 min read

Crespo Wang

Crespo Wang

92 Followers

I stir fry JS, steam AWS and code Beijing duck

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