Help me get started with building a simple dApp on Polygon PoS

Developers
1

Hi everyone,

I’m new to building decentralized applications (dApps), and I’m really interested in starting my journey on Polygon PoS due to its low gas fees and strong developer ecosystem. I’ve gone through some Ethereum tutorials, but I’d like to take it a step further and actually build something simple—like a basic to-do list, voting app, or token faucet—but deployed on the Polygon PoS chain.

Here’s what I’d love help with:

Tools & Frameworks:

  • Which tech stack should I start with? (Hardhat, Truffle, Remix, etc.)
  • Is there a recommended front-end framework that works well with Polygon (React, Next.js, etc.)?
  • Are there starter templates specifically for Polygon?

Smart Contracts:

  • Should I deploy contracts first to Mumbai Testnet before going live on Mainnet?
  • Any example Solidity contracts that are beginner-friendly?
  • What are the differences in deploying to Polygon PoS vs Ethereum?

RPC & Wallet Setup:

  • What’s the best way to connect MetaMask to Polygon Mumbai and Mainnet?
  • Any reliable public RPCs you recommend for testing?

Learning Resources:

  • Are there any official Polygon tutorials or boilerplate repositories?
  • What YouTube channels, GitHub repos, or guides helped you when starting out?

Bonus:

  • Any tips for managing gas, handling user wallets, or debugging transactions on Polygon?
  • Has anyone used a service from a blockchain app development company to accelerate their early-stage development?

I’m just hoping to get started the right way without getting overwhelmed. Would appreciate any guidance, links, or best practices from the community!

2

Excited to help you get started with building a dApp on Polygon PoS! First, you’ll need a few basics:

  1. Set up your environment: Install Node.js, npm, and Truffle or Hardhat (for smart contract development).
  2. Write the Smart Contract: Create a smart contract in Solidity (the language used for Ethereum-compatible networks like Polygon).
  3. Deploy on Polygon: Use Remix or your development framework (Truffle/Hardhat) to deploy your contract to the Polygon PoS network. Make sure you have some MATIC for gas fees!
  4. Frontend Development: Build a UI with libraries like React and web3.js or ethers.js to interact with the blockchain.
  5. Test and Go Live: Once everything works on the Mumbai testnet, deploy your app on the Polygon mainnet.

There are plenty of tutorials online to help with each step. Do you have a specific part you’re stuck on? I’d be happy to help more!"

1 Like
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A few corrections, you need POL for gas, not MATIC, and you should use Amoy testnet, not Mumbai.

Here is a list of Amoy RPCs: https://chainlist.org/chain/80002
Here is a list of Mainnet RPCs: https://chainlist.org/chain/137

4

Welcome to the space. You’re making a good choice by starting with Polygon PoS since it’s beginner-friendly, has low gas fees, and a helpful developer community. For tools, Hardhat is a great option to begin with because it’s flexible and works well with Polygon. React is solid for the front end, and there are some Polygon-specific starter templates on GitHub that can save you time. It’s a good idea to deploy your contracts to the Mumbai Testnet first so you can test everything without using real funds. You can add the Polygon network to MetaMask manually, and their docs provide all the RPC details. For learning, check out the official Polygon tutorials and YouTube channels like Dapp University or EatTheBlocks. If you’re looking to move faster or need help with more technical parts, you might consider reaching out to a blockchain app development company. They can help with things like setting up contracts, handling wallets, and making sure your app runs smoothly. You’re off to a great start, just keep experimenting and learning as you go.