37 articles tagged with ""serverless""
Your SQS queue has 47,000 messages stuck in a loop, retrying forever, and you have no idea why. After running serverless e-commerce backends on AWS, here's everything I wish I'd known about SQS, visibility timeouts, and the DLQ that saves your sanity!
You went serverless, deployed Lambda, and then watched your RDS instance die under 10,000 simultaneous connections. I've been there. RDS Proxy saved my backend - here's how!
DynamoDB is either the best thing that ever happened to your serverless backend or the most expensive mistake of your career. After architecting e-commerce platforms on it for years, here's what I wish someone had told me on day one!
Your API is getting hammered by bots and you're paying Lambda's invoice for every single scraper hit. AWS WAF is the bouncer your serverless app desperately needs!
AWS sneaked a feature into Lambda in 2022 that lets you call functions directly via HTTPS — no API Gateway required. I've been saving hundreds per month with it. Here's how.
Your ops team is tired of 3am 'the server is on fire' calls. Laravel Vapor deploys your app to AWS Lambda and lets you sleep like a baby. Here's everything I learned building serverless e-commerce on it.
If you're copy-pasting the same utility code and npm packages across 30 Lambda functions, your deployment zips are a disaster and your sanity is next. Lambda Layers fix this — here's everything I wish I knew earlier.
If you're still using cron jobs or DB polling to handle real-time events, we need to have a serious talk. Kinesis Data Streams changed how I built event-driven backends — here's everything I wish I'd known earlier.
You have SQS for queues and SNS for notifications - but who routes events between your 15 AWS services without spaghetti code? EventBridge. And it's probably the most underrated AWS service you're not using.
I once pushed an AWS access key to a public GitHub repo at 2 AM. Within four minutes, a bot had spun up 47 crypto-mining EC2 instances in regions I'd never heard of. This post is my penance. Here's how to use AWS Secrets Manager properly — and never have that particular existential crisis again.
DynamoDB is AWS's magic serverless database - infinitely scalable, zero maintenance, and capable of destroying your architecture if you don't respect it. After building e-commerce backends on it, here's what I wish someone had told me on day one!
I used to spend more time patching EC2 instances than writing features. Then I discovered ECS Fargate and never looked back. Here's how I migrated our e-commerce backend to serverless containers — and the gotchas that nearly broke production.
Your S3 bucket in us-east-1 is making users in Singapore wait 800ms for a logo. CloudFront fixes that AND slashes your bandwidth bill. Here's everything I learned the hard way.
Your Lambda crashed mid-order. Your server rebooted at 3 AM. Your API timed out. Without SQS, that message is GONE forever. Here's how I stopped losing customer orders in production.
I spent two years writing CloudFormation YAML by hand. 4,000 lines. Four digits. I once spent an entire afternoon debugging a misaligned space. Then I discovered AWS CDK and I genuinely cannot go back.
My PostgreSQL was drowning at 50k requests/minute. DynamoDB laughed at 5 million. After architecting serverless e-commerce backends on AWS, here's everything I wish someone had told me before I spent a week pulling my hair out over partition keys!
Your Lambda chaining logic looks like my college codebase — a mess of callbacks, error handlers, and prayers. Step Functions exists specifically so you never have to write that again.
I once built a notification system using cron jobs, a custom email queue, separate SMS API calls, and a Slack webhook I 'temporarily' hardcoded. It worked great until an order confirmation email arrived 4 hours late and a customer's SMS went to someone else. AWS SNS exists. I should have used it.
I watched a $12/month RDS bill turn into $340 in a single flash sale. Same queries. Same code. Just 10x the traffic. ElastiCache saved my career. Here's everything I wish I'd known before Black Friday.
I once lost 2,400 order messages in production. Not hacked. Not a DDoS. Just SQS silently swallowing them. Here's everything I learned about Dead Letter Queues, visibility timeouts, and building bulletproof message queues!
I once spent three weeks building a custom JWT auth system for our serverless backend. It had refresh token rotation, device tracking, forgot-password flows, and at least four security vulnerabilities I didn't know about until a penetration tester found them. Then someone showed me Cognito. I cried a little.
I once built a 'message queue' using a DynamoDB table, a cron job, and a lot of prayers. It worked until it didn't. Then I discovered SQS and felt both relieved and deeply embarrassed. Here's everything you need to know to stop reinventing the queue.
I once chained 7 Lambda functions together with async callbacks and SNS triggers. It worked great — until it didn't. Step Functions turned my distributed spaghetti into a debuggable, visual workflow. Here's everything I learned building e-commerce order flows with it.
I scaled Lambda to handle 10x traffic and watched our RDS instance die in real-time. Turns out each Lambda invocation opens its own DB connection — and RDS has a limit. Here's how RDS Proxy saved our e-commerce backend from connection hell.
I spent three days debugging why our e-commerce order confirmation emails had a 40% open rate — until I realized 40% is amazing when the other 60% was silently landing in spam. Here's everything I learned about not destroying your sender reputation on AWS SES.
I once thought our AWS bill was fine — until I actually read it. Turns out we were paying $400/month for data transfer between services in the same Availability Zone. Here's everything I learned about cutting AWS costs without breaking production.
I once lost 40,000 order events because a Lambda bug silently ate messages until the queue was empty. SQS Dead Letter Queues would have saved me. Don't be me.
For 18 months I wired Lambda directly to Lambda and called it 'microservices.' Then I discovered EventBridge and realized I'd been building distributed monoliths. Here's what changed.
Everyone sells serverless as infinitely scalable. Nobody mentions the default concurrency limit of 1,000. I found out the hard way. Let me spare you the 3 AM panic.
CloudFront is the best CDN on the planet when configured right. And an expensive, confusing mess when configured wrong. I've done both. Let me save you from the expensive part.
Your SQS messages are silently dying and you don't even know it. Dead Letter Queues are the safety net every serverless app needs - and setting them up takes 10 minutes.
You're doing JOINs in application code, scanning entire tables, and wondering why your AWS bill is $500/month? After architecting production DynamoDB systems handling millions of requests, here's how to actually use NoSQL - not SQL in denial!
Still polling DynamoDB every 5 seconds to check for updates? Your Lambda costs are through the roof and your architecture is held together with duct tape and cron jobs? After architecting event-driven systems on AWS, here's why EventBridge changed everything!
Your Lambda functions are cheap, but API Gateway is silently draining your wallet. After 7+ years architecting serverless backends, here are the API Gateway mistakes that cost me thousands!
Your Lambda is checking the database every 5 seconds 'just in case' something happened? After years of architecting event-driven systems on AWS, here's how EventBridge saved me from polling hell and cut our costs by 90%!
Your Lambda functions are calling each other in a tangled mess of async chaos? After years of architecting serverless workflows on AWS, here's how Step Functions saved me from callback hell and $500/month in wasted Lambda executions!
Your Lambda function is fast... except when it's not. Cold starts are the dirty secret of serverless - but I've got battle-tested tricks to make them way less painful!