Bookmarks (37) clear filters

How I Built and Deployed a Fun Serverless Machine Learning App — A thorough examination, including code examples, of how a developer built a complete and fun image filter app with React, JavaScript, and got it running on Netlify and S3.

Skip Lambda and Save Data to DynamoDB Directly — We’ve just covered this topic in the item above but this digs more into the technicalities and potential of working with DynamoDB directly from API Gateway. Not only serverless, it’s Lambda-less, too!

Email Yourself Daily Alexa Skill Metrics Updates using Lambda, SMAPI, and SES — Got Alexa skills deployed? Get your latest skill metrics delivered to you each day courtesy of the Alexa Skill Management API (SMAPI) and a Lambda function.

Importing 100M+ Records into DynamoDB in Under 30 Minutes — Last week we mentioned that DynamoDB now has an ‘export to S3’ feature, but what about loading data into DynamoDB at scale? Enter a batch of simultaneously running AWS Lambda functions!

Capturing User Emails in Google Sheets — The team behind a political prediction visualization needed to stay in touch with its supporters. Their approach? Spin up a Node-powered function on AWS Lambda and push email addresses onto a Google Sheet.

Self-Hosted Lambda Monitoring and Alerting with Slack — Chris wanted a way to monitor his serverless functions for failures himself without the data going outside of his AWS account and came up with this homebrew solution.

Sending Discord Notifications using CloudWatch Alarms, SNS and AWS Lambda — How to send a notification to a Discord Channel when a CloudWatch alarm is triggered.

Scheduling Irregular AWS Lambda Executions Through DynamoDB TTL Attributes — An older post, but one I missed at the time. This is an interesting way to schedule Lambda invocations in irregular ways (e.g. “run this function once in 2 days and 10 hours and then again in 4 days”).

Building a Sudoku-Solving Serverless Endpoint using WebAssembly — A post that brings together some interesting ideas, like building an existing C++ library as WebAssembly then linking against it from a serverless endpoint. It leans on OR-Tools, a set of tools, built by Google, for solving combinatorial optimization problems (like a Sudoku puzzle!)

How I Write Meaningful Tests for AWS Lambda Functions — Testing is a common theme this week. In this case, the author looks at some hurdles you need to overcome and recommends moto as a way to mock out AWS services your functions interact with.

The Power of Serverless: Taking Visual Regression Tests From 20 Minutes to 10 Seconds — Visual regression tests are awesome, but unfortunately, they can take a considerable amount of time to run. Until now.

From Legacy Application to Serverless with EventBridge — A tale of ‘attacking the legacy monster’ and making an application more flexible and extensible by way of Amazon’s EventBridge application event bus.

Why You Should Never, Ever print() in a Lambda Function — There are amateur and ‘pro’ ways to do logging and error handling in serverless functions, and Paul aims to show you the better path worth taking.

Implementing Serverless 'Magic' Login Links with AWS Cognito — ‘Magic’ links are a form of authentication where instead of using a password you get sent an email with a link that then logs you into a system. Note that this is more an example/proof of concept (using JavaScript) than a tutorial.

Building a REST API Using Google Sheets — Not all apps need a database. Not all serverless functions need AWS Lambda or Cloudflare Workers.. This is an interesting look at using Google Cloud Run along with Google Sheets as a sort-of serverless data storage API.

How To Capture Emails For Free with FaunaDB — FaunaDB is a serverless cloud database (it refers to itself as a ‘data API for client‑serverless applications’) and it’s easy to use it to collect email addresses from people interested in your next project/business/etc.

How I Built a Serverless Twitter Bot in Node in a Day — Insights, steps, and useful links if you want to build your own basic Twitter bot on top of AWS Lambda functions.