Forem: DarshanBattula

(New) Best Node.js Retry Library for Async Functions (2026)

DarshanBattula — Tue, 07 Apr 2026 11:59:04 +0000

🔁 I Was Tired of Writing Retry Logic… So I Built `retry-pro`

Every backend developer has written this at least once:

for (let i = 0; i < 3; i++) {
  try {
    return await fetchData();
  } catch (e) {
    await new Promise(r => setTimeout(r, 1000));
  }
}

Looks harmless, right?

Until production hits.

💥 The Night Everything Broke

2:17 AM.

Your API starts failing randomly.

Third-party service → timing out
Database → occasional connection drops
Users → getting errors

You panic… but then remember:

“We added retry logic!”

Except… you didn’t really.

🚨 The Hidden Problem With “Simple” Retries

That tiny loop you wrote?

It’s missing a lot:

❌ No exponential backoff
❌ No jitter → causes traffic spikes
❌ Retries everything (even bad requests 🤦)
❌ No timeout per attempt
❌ No logs, no hooks, no visibility

What you thought was resilience… is actually risk.

🧠 What Production-Grade Retry Actually Looks Like

Here’s what you really need:

Attempt 1 → wait 200ms
Attempt 2 → wait 400ms
Attempt 3 → wait 800ms (+ jitter)
Stop retrying if error is NOT retryable
Timeout each attempt individually
Log everything

That’s not a loop anymore.

That’s a system.

✨ Meet `retry-pro`

Instead of rewriting this logic every time, I built:

👉 retry-pro — a tiny but powerful async retry utility

⚡ What Makes It Different?

🔁 Exponential backoff (built-in)
🎲 Optional jitter (prevents retry storms)
⏱️ Timeout per attempt
🧠 Smart retry conditions
🪝 Hooks: onRetry, onSuccess, onFailure
🧩 TypeScript support

🚀 10-Second Setup

npm install retry-pro

import { retryAsync } from "retry-pro";

const data = await retryAsync(fetchData, {
  retries: 3
});

That’s it. You already have safer retries.

🔬 Real Example (The Right Way)

const user = await retryAsync(async () => {
  const res = await fetch("/api/user");

  if (!res.ok) {
    const err = new Error("Request failed");
    err.retryable = res.status >= 500;
    throw err;
  }

  return res.json();
}, {
  retries: 5,
  initialDelay: 200,
  maxDelay: 5000,
  jitter: true,

  retryIf: (err) => err.retryable,

  onRetry: (attempt, err, delay) => {
    console.log(`Retry ${attempt} in ${delay}ms`);
  }
});

📊 Visualizing the Difference

❌ Naive Retry

[Request] → fail → wait 1s → fail → wait 1s → fail ❌

✅ Smart Retry (retry-pro)

[Request]
   ↓
fail → wait 200ms
   ↓
fail → wait 400ms (+ jitter)
   ↓
fail → wait 800ms
   ↓
success ✅

🌍 Where This Actually Saves You

🔌 Third-party APIs (Stripe, Firebase, etc.)
🌐 Fetch / Axios calls
🗄️ Database reconnect logic
⚡ Background jobs & workers
🔁 Microservices communication

⚖️ “Why Not Just Use p-retry?”

Good question.

Libraries like p-retry are solid.

But retry-pro focuses on:

Cleaner DX (less boilerplate)
Built-in lifecycle hooks
Timeout per attempt (huge in production)
More control, less setup

💡 Hard-Learned Lesson

Retries are not about “trying again.”

They’re about:

timing
control
safety
observability

Bad retries can DDOS your own system.

Good retries make your system feel bulletproof.

🔗 Try It Yourself

👉 https://www.npmjs.com/package/retry-pro

👇 Final Thought

If your code talks to anything over the network…

You already have failures.

The only question is:

Are you handling them properly?

If this helped, drop a ❤️ or share how you handle retries in your apps 👇

ECMA2025-Latest evolution

DarshanBattula — Sun, 05 Apr 2026 05:40:34 +0000

🚀 JavaScript 2026 Edition — What’s New (Quick Overview)

The JavaScript ecosystem continues to evolve rapidly in 2026, bringing improvements not just to the language, but also to frameworks, runtimes, tooling, and developer workflows.

🔹 1. ECMAScript 2025 (Latest Language Features)

➤ Iterator Helpers

New methods like .map(), .filter(), .take(), and .drop() now work directly on iterators with lazy evaluation, improving performance and memory usage.

➤ Set Methods

Powerful new operations on sets:
• intersection()
• union()
• difference()
• symmetricDifference()
• isSubsetOf() and more
These make data comparisons much easier and more expressive.

➤ RegExp.escape()

A long-awaited feature that safely escapes user input in regex, preventing bugs and security issues.

➤ Base64 & Hex Encoding

Native methods like .toBase64() and .toHex() simplify encoding workflows without external utilities.

⸻

🔹 2. Upcoming ECMAScript 2026 Features (Expected)
• Temporal API → Modern replacement for Date
• Promise.try() → Cleaner async handling
• Explicit Resource Management → Better control over cleanup (like file handles)
• Continued improvements to iterators and async patterns

⸻

🔹 3. Framework Ecosystem Updates

React
• React 19 introduced:
• Server Components (RSC)
• Server Actions
• React Compiler

Vue & Tooling
• Growth around the VoidZero ecosystem and tools like Vite+

Svelte
• Svelte 5 continues focusing on performance and simplicity

⸻

🔹 4. JavaScript Runtimes
• Node.js still dominates
• Strong alternatives:
• Deno
• Bun
• All are converging with features like native TypeScript support

⸻

🔹 5. Build Tools & Tooling Evolution
• Tools like Vite, Turbopack, Webpack continue evolving
• Faster builds and better DX are key focus areas

⸻

🔹 6. AI in JavaScript Development
• Around 92% of developers use AI for coding assistance
• AI is especially strong with TypeScript and modern JS workflows

⸻

🔹 7. Meta Frameworks Growth

Popular frameworks shaping modern apps:
• Next.js
• Remix / React Router
• Astro
• TanStack ecosystem

⸻

🔹 8. Security & npm Concerns
• Supply chain attacks and malicious packages are increasing
• Developers need to be more cautious with dependencies

⸻

📘 Blog Overview

The article gives a complete 2026 snapshot of JavaScript, covering:
• Latest language features (ES2025 + upcoming ES2026)
• Framework ecosystem (React, Vue, Svelte)
• Runtimes (Node, Bun, Deno)
• Build tools and meta-frameworks
• TypeScript dominance
• The growing role of AI in development
• Security concerns in npm

Overall, it emphasizes that being a JavaScript developer today goes far beyond just the language—it includes understanding the entire ecosystem.

⸻

🔗 Read Full Blog … https://frontendmasters.com/blog/what-to-know-in-javascript-2026-edition/

Explore the complete breakdown, examples, and deeper insights into each feature and ecosystem trend.

⸻

Debug unreadable error’s with INTELLERROR

DarshanBattula — Thu, 02 Apr 2026 06:56:59 +0000

If you’ve ever debugged a Node.js app, you’ve probably seen something like this:

TypeError: Cannot read properties of undefined (reading 'name')
    at Object.<anonymous> (/app/src/index.js:12:5)
    at Module._compile (internal/modules/cjs/loader.js:...)
    at Object.Module._extensions..js (...)

And your reaction?

“Okay… but what actually went wrong?”

🚧 The Problem

JavaScript errors are noisy.

Too many irrelevant stack frames
Hard to spot your actual code
No guidance on how to fix the issue

Even though tools exist, most of them only:

Format errors
Clean stack traces

But they don’t answer the real question:

“What should I do next?”

💡 The Idea

I wanted something more than just formatting.

I wanted a tool that:

Highlights what matters
Filters out noise
Suggests possible fixes

So I built IntellError.

👉 https://www.npmjs.com/package/intellerror
👉 https://github.com/darshan1005/IntellError

⚡ What IntellError Does

IntellError transforms raw errors into something actually useful.

Instead of dumping a messy stack trace, it gives you:

Clean, readable output
Focus on your code (not node_modules)
Helpful suggestions

🔥 Example

❌ Before

TypeError: Cannot read properties of undefined (reading 'name')
    at src/user.js:10:5
    at node_modules/express/...

✅ After (with IntellError)

❌ TypeError: Cannot read property 'name' of undefined

📍 Location:
src/user.js:10:5   ← YOUR CODE

💡 Possible Cause:
You are accessing 'name' on an undefined object

✔ Suggested Fix:
Use optional chaining:
user?.name

📦 Stack (filtered):
→ src/user.js:10:5

🧠 Why I Built It

Every time I debugged something, I noticed:

I ignored most of the stack trace
I manually searched for the root cause
I repeated the same mental steps

So I asked:

“Why isn’t this automated?”

There are tools that improve error formatting, and others that focus on structured error handling, but very few actually help developers understand and fix issues faster. ([npm][1])

That’s the gap I wanted to fill.

🛠️ How It Works (Simplified)

IntellError:

Parses the error stack
Filters out irrelevant frames
Highlights user code
Applies rule-based suggestions

No AI. No heavy setup. Just useful output.

🎯 Goals

Make debugging faster
Reduce cognitive load
Improve developer experience

Because debugging shouldn’t feel like decoding a puzzle.

🌱 What’s Next

This is just the beginning.

Planned improvements:

More intelligent suggestions
Framework integrations (Express, etc.)
Better TypeScript support
CLI integration

🙌 Feedback

I’d love to hear your thoughts:

What frustrates you about debugging today?
What kind of suggestions would actually help?
Would you use something like this?

🔗 Links

npm: https://www.npmjs.com/package/intellerror
GitHub: https://github.com/darshan1005/IntellError

🎯 Final Thought

We spend a huge part of development fixing errors.

So why are error messages still so bad?

With IntellError, I’m trying to make them just a little bit better.

The Easiest Way to Cache Your API (No Redis Needed)

DarshanBattula — Wed, 01 Apr 2026 14:44:53 +0000

Every backend developer hits this moment:

Your API is working fine…
Until suddenly it’s not.

Too many requests
Slower responses
Repeated database/API calls
Same data being fetched again and again

And you realize:

“I need caching.”

🚧 The Problem

So naturally, you look into caching solutions.

And what do you find?

Redis
Distributed caching
Complex setups
Extra infrastructure

For many projects, especially small to medium apps, this feels like:

bringing a truck when all you needed was a bicycle

I didn’t want:

extra services
deployment complexity
infrastructure overhead

I just wanted something simple.

💡 The Idea

What if caching could be:

Plug-and-play
In-memory
Middleware-based
Works instantly

No Redis. No setup. No headaches.

That’s how Cachify was born.

👉 https://github.com/darshan1005/Cachify
👉 https://www.npmjs.com/package/memcachify

⚡ What Cachify Does

Cachify is a lightweight caching layer for Node.js APIs.

It helps you:

Cache API responses instantly
Reduce redundant requests
Improve response time
Keep your app simple

Caching is commonly used to avoid repeated expensive operations and improve performance. ([jsDelivr][1])

🔥 Why I Built It

In multiple projects, I kept rewriting the same logic:

// Check cache
// If not present → fetch data
// Store in cache
// Return response

Again. And again. And again.

It felt repetitive.

And worse:

Easy to get wrong
Hard to maintain
Scattered across code

So I thought:

Why not turn this into a reusable middleware?

🛠️ Example Usage

Instead of writing caching logic manually:

app.get("/users", async (req, res) => {
  const users = await fetchUsers();
  res.json(users);
});

You can just do:

import { cache } from "memcachify";

app.get("/users", cache({ ttl: 60 }), async (req, res) => {
  const users = await fetchUsers();
  res.json(users);
});

And that’s it.

✨ Features

🧠 In-memory caching
⏱ TTL (Time-To-Live) support
⚡ Fast lookup (Map-based)
🔌 Easy Express integration
🧹 Cache invalidation helpers

🧠 What I Learned

1. Simplicity Wins

Most developers don’t need distributed caching on day one.

2. Developer Experience Matters

If something takes more than 2 minutes to set up, people won’t use it.

3. Repeated Problems = Opportunity

If you solve the same issue multiple times, it’s worth building a tool.

⚖️ When to Use (and Not Use)

✅ Use Cachify when:

Small to medium apps
MVPs / prototypes
Internal tools
Low infra complexity

❌ Don’t use it when:

You need distributed caching
You have multiple server instances
You need persistence across restarts

🌱 What’s Next

I’m planning to add:

Fastify support
Smarter cache key strategies
Better invalidation APIs
Optional persistence layer

🙌 Feedback

This is still evolving, and I’d love your thoughts:

What features would you want?
How do you handle caching today?
Would you use something like this?

🔗 Links

GitHub: https://github.com/darshan1005/Cachify
npm: https://www.npmjs.com/package/memcachify

🎯 Final Thought

Not every problem needs a heavy solution.

Sometimes, a simple tool that works instantly is exactly what developers need.

Stop Waiting for Backends — Just Fake the API

DarshanBattula — Wed, 01 Apr 2026 14:05:32 +0000

If you’ve ever worked on a frontend project, you’ve probably experienced this:

UI is ready
Components are working
But… no backend yet

So what do you do?

You either:

Hardcode JSON
Use random mock data
Or wait (and lose momentum)

I hit this problem multiple times — and that’s why I built FauxAPI.

👉 https://www.npmjs.com/package/fauxapi
👉 https://github.com/darshan1005/FauxAPI

🚧 The Problem

Frontend development often gets blocked by backend dependencies.

Even though tools exist, many of them are:

Overcomplicated
Not flexible
Or require setup that kills productivity

Mock APIs exist, but they don’t always feel like real APIs.

And that’s the key problem.

💡 The Idea

I wanted something that:

Generates realistic API responses
Feels like a real backend
Works instantly
Requires almost zero setup

Something where you can say:

“Give me an API — right now.”

⚡ Introducing FauxAPI

FauxAPI is a lightweight tool to generate mock APIs and JSON responses for development and testing.

It helps you:

Build UI without waiting for backend
Test API flows quickly
Prototype faster

Mock APIs are powerful because they let you simulate real-world scenarios without needing a server ready. (Faux API)

🔥 Why I Built It

Every time I started a new project, I wasted time on:

Creating fake data
Maintaining JSON files
Rewriting mocks again and again

I realized:

This problem is repetitive… and solvable.

So instead of solving it every time manually, I built a tool to solve it once.

🛠️ What FauxAPI Does

Generate mock API responses
Simulate real endpoints
Help frontend development move independently
Speed up testing and prototyping

Mock APIs are widely used because they allow developers to continue building even when the backend isn’t ready yet. (Faux API)

🚀 Example Use Case

Imagine you’re building a dashboard.

Instead of waiting for:

{
  "users": []
}

You can instantly work with:

{
  "users": [
    { "id": 1, "name": "John Doe" }
  ]
}

Now your UI:

loads real-looking data
behaves like production
can be tested properly

🧠 What I Learned Building This

1. Developer Experience > Features

People don’t want more options — they want fewer steps.

2. Speed Matters More Than Perfection

If a tool saves time immediately, developers will use it.

3. Simplicity Wins

The best tools feel invisible.

🌱 What’s Next

This is just the beginning.

Planned improvements:

Better schema-based generation
CLI improvements
More realistic data patterns
API simulation features

🙌 Feedback

This is an early project, and I’d love to hear:

What features would you want?
What tools are you currently using?
What frustrates you about mock APIs?

🔗 Links

npm: https://www.npmjs.com/package/fauxapi
GitHub: https://github.com/darshan1005/FauxAPI

🎯 Final Thought

Building apps shouldn’t stop because the backend isn’t ready.

With tools like FauxAPI, you can keep moving forward — and that’s what really matters.

Stop Letting .env Files Break Your App

DarshanBattula — Wed, 01 Apr 2026 13:36:11 +0000

I kept breaking apps because of missing env variables… so I built this.

Hey everyone 👋

I’ve lost count of how many times this happened:

App crashes in production
Turns out → missing or invalid .env variable
Or worse… typo like DATABSE_URL 😅

So I built a small utility to fix this problem:

👉 strict-env-validator

🔗 https://www.npmjs.com/package/strict-env-validator

🔧 What it does

Automatically loads .env files
Validates all environment variables at startup
Throws clear errors if something is missing or invalid
Prevents your app from running with bad config

✨ Why I built it

I tried existing tools, but I wanted something:

Simpler to use
Strict by default
Works out of the box without too much setup

Most tools validate env variables, but I wanted something that fails fast and clearly before your app even starts.

⚡ Example

Instead of writing validation manually:

const PORT = process.env.PORT;
if (!PORT) throw new Error("Missing PORT");

You get:

import "strict-env-validator";

And it handles everything for you ✅

🎯 Goal

Make .env handling:

predictable
safe
impossible to mess up

🙌 Feedback

This is still early, so I’d really appreciate:

feedback
feature ideas
criticism

If you’ve faced similar issues, I’d love to hear how you handle env validation.

Thanks!

Forem: DarshanBattula

(New) Best Node.js Retry Library for Async Functions (2026)

🔁 I Was Tired of Writing Retry Logic… So I Built retry-pro

💥 The Night Everything Broke

🚨 The Hidden Problem With “Simple” Retries

🧠 What Production-Grade Retry Actually Looks Like

✨ Meet retry-pro

⚡ What Makes It Different?

🚀 10-Second Setup

🔬 Real Example (The Right Way)

📊 Visualizing the Difference

❌ Naive Retry

✅ Smart Retry (retry-pro)

🌍 Where This Actually Saves You

⚖️ “Why Not Just Use p-retry?”

💡 Hard-Learned Lesson

🔗 Try It Yourself

👇 Final Thought

ECMA2025-Latest evolution

Debug unreadable error’s with INTELLERROR

🚧 The Problem

💡 The Idea

⚡ What IntellError Does

🔥 Example

❌ Before

✅ After (with IntellError)

🧠 Why I Built It

🛠️ How It Works (Simplified)

🎯 Goals

🌱 What’s Next

🙌 Feedback

🔗 Links

🎯 Final Thought

The Easiest Way to Cache Your API (No Redis Needed)

🚧 The Problem

💡 The Idea

⚡ What Cachify Does

🔥 Why I Built It

🛠️ Example Usage

✨ Features

🧠 What I Learned

1. Simplicity Wins

2. Developer Experience Matters

3. Repeated Problems = Opportunity

⚖️ When to Use (and Not Use)

✅ Use Cachify when:

❌ Don’t use it when:

🌱 What’s Next

🙌 Feedback

🔗 Links

🎯 Final Thought

Stop Waiting for Backends — Just Fake the API

🚧 The Problem

💡 The Idea

⚡ Introducing FauxAPI

🔥 Why I Built It

🛠️ What FauxAPI Does

🚀 Example Use Case

🧠 What I Learned Building This

1. Developer Experience > Features

2. Speed Matters More Than Perfection

3. Simplicity Wins

🌱 What’s Next

🙌 Feedback

🔗 Links

🎯 Final Thought

Stop Letting .env Files Break Your App

🔧 What it does

✨ Why I built it

⚡ Example

🎯 Goal

🙌 Feedback

🔁 I Was Tired of Writing Retry Logic… So I Built `retry-pro`

✨ Meet `retry-pro`