https://github.com/alchemyplatform/solana-hello-world-2025

https://github.com/alchemyplatform/solana-hello-world-2025

Last synced: about 19 hours ago
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• Host: GitHub
• URL: https://github.com/alchemyplatform/solana-hello-world-2025
• Owner: alchemyplatform
• Created: 2025-11-21T17:03:00.000Z (7 months ago)
• Default Branch: main
• Last Pushed: 2026-04-28T23:30:51.000Z (2 months ago)
• Last Synced: 2026-04-29T01:22:45.918Z (2 months ago)
• Language: TypeScript
• Homepage:
• Size: 202 KB
• Stars: 1
• Watchers: 0
• Forks: 1
• Open Issues: 3
• Metadata Files:
  • Readme: README.md

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README

          
# Solana Hello World App

![Solana Hello World Screenshot](https://alchemyapi-res.cloudinary.com/image/upload/v1763746952/Screenshot_2025-11-21_at_9.42.27_AM_efycbi.png)

This is a minimal Next.js demo DApp for interacting with a Solana on-chain "Hello World" program using the Phantom wallet and the Alchemy RPC proxy. Users can connect their Solana wallet (e.g., Phantom), send a simple "ping" transaction to their deployed Solana program on **devnet**, and view the transaction signature and program logs directly in the app UI. 

**Features:**

- Connect to your Solana wallet (Phantom or compatible)

- Send a transaction to your Hello World program on Solana devnet

- View transaction signature and link to Solana Explorer

- See logs output by your program

- All RPC requests are securely proxied via a Next.js API route to protect your Alchemy API key

_Note:_ This app is meant for demo/educational purposes and uses client-side wallet connections only. See the source code for details on how transactions are built and sent with `@solana/web3.js` and how the Alchemy API proxy is implemented.