typescript

wIndexer TypeScript Examples

This directory contains TypeScript examples for interacting with wIndexer and Solana.

Prerequisites

• Node.js (v16 or later)
• npm or bun
• Local Solana validator running with Geyser plugin
• wIndexer node running

Setup

1. Install dependencies:

   npm install
   

   or with bun:

   bun install
   

2. Make sure your services are running:

   # Terminal 1: Run Solana validator with Geyser plugin
   cd /home/vivek/projects/aletheia/windexer/windexer
   make run-validator-with-geyser
   
   # Terminal 2: Run wIndexer node
   cd /home/vivek/projects/aletheia/windexer/windexer
   make run-node-0
   

Available Examples

Generate Test Transactions

The simplest way to generate test transactions:

npm run simple-tx

This script sends simple transactions without requiring WebSocket confirmation.

Query Solana Validator

npm run query-solana

This script queries basic information from your local Solana validator.

Subscribe to Solana Events

npm run websocket

This script subscribes to Solana events via WebSockets.

Query wIndexer API

npm run query-windexer

This script queries the wIndexer API for indexed transactions and accounts.

Troubleshooting

WebSocket Errors

If you encounter WebSocket errors with generate-data.ts, try using the simpler simple-tx.ts script which doesn't rely on WebSockets for confirmation:

npm run simple-tx

Airdrop Issues

If automatic airdrops fail, you can use the Solana CLI to request an airdrop:

solana airdrop 2 YOUR_WALLET_ADDRESS --url http://localhost:8999

Error: "Cannot find module '@solana/web3.js'"

Run npm install to ensure all dependencies are installed correctly.