---
title: "#nodejs Code Snippets"
lang: "en"
author: "Mohammad Abu Mattar"
canonical: https://mkabumattar.com/tags/nodejs
---

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# #Nodejs

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# #Nodejs

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[![AWS DynamoDB CRUD Operations in Node.js with the AWS SDK v3](/_astro/hero.CceR-orf_Z2scRI0.webp)](/codesnippets/post/nodejs-dynamodb-crud-aws-sdk-v3)

## [AWS DynamoDB CRUD Operations in Node.js with the AWS SDK v3](/codesnippets/post/nodejs-dynamodb-crud-aws-sdk-v3)

-   [Nodejs](/codesnippets/categories/nodejs)
-   [Aws](/codesnippets/categories/aws)
-   05 Aug 2026
-   07 Mins read

Quick Tip Wrap the low-level DynamoDB client in a DynamoDBDocumentClient so you pass plain JavaScript objects in and get plain objects back, then guard your writes with ConditionExpression an

[#DynamoDB](/codesnippets/tags/dynamodb)[#Node.js](/codesnippets/tags/nodejs)[#AWS SDK v3](/codesnippets/tags/aws-sdk-v3)+3 tags

[Typescript](/codesnippets/typescript)

[View Code](/codesnippets/post/nodejs-dynamodb-crud-aws-sdk-v3)

[![Node.js Environment Variable Validation with Zod at Startup](/_astro/hero.DEQ8-R8h_1M1QX3.webp)](/codesnippets/post/nodejs-env-validation-zod-startup)

## [Node.js Environment Variable Validation with Zod at Startup](/codesnippets/post/nodejs-env-validation-zod-startup)

-   [Nodejs](/codesnippets/categories/nodejs)
-   [Typescript](/codesnippets/categories/typescript)
-   27 May 2026
-   07 Mins read

Most Node.js apps treat process.env like a trusted friend. You reach into it whenever you need a value, assume the key is there, assume it's spelled right, and assume the string is actually the type

[#Node.js](/codesnippets/tags/nodejs)[#TypeScript](/codesnippets/tags/typescript)[#Zod](/codesnippets/tags/zod)+5 tags

[Typescript](/codesnippets/typescript)

[View Code](/codesnippets/post/nodejs-env-validation-zod-startup)

[![Redis Caching Patterns: Cache-Aside, Write-Through & Cache Invalidation](/_astro/hero.Ck2oLF89_ZPiYlL.webp)](/codesnippets/post/redis-caching-patterns-architecture)

## [Redis Caching Patterns: Cache-Aside, Write-Through & Cache Invalidation](/codesnippets/post/redis-caching-patterns-architecture)

-   [Backend](/codesnippets/categories/backend)
-   [Performance](/codesnippets/categories/performance)
-   07 Apr 2026
-   05 Mins read

Need to scale your backend without throwing money at servers? Start with Redis caching patterns. Most databases can handle hundreds of queries per second, but thousands? Your app slows to a crawl

[#Redis](/codesnippets/tags/redis)[#Caching](/codesnippets/tags/caching)[#Performance](/codesnippets/tags/performance)+6 tags

[Python, Node.js and Go](/codesnippets/python-nodejs-and-go)

[View Code](/codesnippets/post/redis-caching-patterns-architecture)

[![AWS Secrets Manager](/_astro/hero.BIDl4oI2_Z1yJEXf.webp)](/codesnippets/post/nodejs-aws-secrets-manager)

## [AWS Secrets Manager](/codesnippets/post/nodejs-aws-secrets-manager)

-   [Aws](/codesnippets/categories/aws)
-   [Devops](/codesnippets/categories/devops)
-   18 Jun 2025
-   03 Mins read

Loading secrets in a Node.js app without exposing them If you're still storing API keys or database credentials in .env files or hardcoding them into your codebase, it's time for a better appro

[#NodeJS](/codesnippets/tags/nodejs)[#TypeScript](/codesnippets/tags/typescript)[#AWS](/codesnippets/tags/aws)+3 tags

[Typescript](/codesnippets/typescript)

[View Code](/codesnippets/post/nodejs-aws-secrets-manager)