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☕ Support This Project

This SDK is completely free and open source. However, maintaining and continuously updating it requires significant AI computing resources and token consumption. If this SDK helps with your development, consider making a monthly SOL donation — any amount is appreciated and helps keep this project alive!

Donation Wallet: 6oW7AXz1yRb57pYSxysuXnMs2aR1ha5rzGzReZ1MjPV8

From npm

npm install sol-parser-sdk-nodejs@0.4.4

From source (folder may be named sol-parser-sdk-ts in a monorepo)

git clone https://github.com/0xfnzero/sol-parser-sdk-nodejs
cd sol-parser-sdk-nodejs
npm install
# npm run build   # only if you import from dist/ instead of examples/tsx → src

At the package root (next to package.json):

cp .env.example .env
# Set GRPC_URL and GRPC_TOKEN

Run examples from that directory so .env is picked up.

npx tsx scripts/test-grpc-ts.ts

Requires GRPC_URL and GRPC_TOKEN. See .env.example for optional vars (MAX_EVENTS, TIMEOUT_MS, etc.).

import {
  YellowstoneGrpc,
  parseDexEventsFromGrpcTransactionInfo,
  dexEventToJsonString,
} from "sol-parser-sdk-nodejs";

const ENDPOINT = process.env.GRPC_URL?.trim() ?? "";
const X_TOKEN = process.env.GRPC_TOKEN?.trim() ?? "";
if (!ENDPOINT || !X_TOKEN) throw new Error("GRPC_URL and GRPC_TOKEN are required");

const client = new YellowstoneGrpc(ENDPOINT, X_TOKEN);

const filter = {
  account_include: [
    "6EF8rrecthR5Dkzon8Nwu78hRvfCKubJ14M5uBEwF6P", // PumpFun
    "pAMMBay6oceH9fJKBRHGP5D4bD4sWpmSwMn52FMfXEA", // PumpSwap
  ],
  account_exclude: [],
  account_required: [],
  vote: false,
  failed: false,
};

const sub = await client.subscribeTransactions(filter, {
  onUpdate: (update) => {
    const txInfo = update.transaction?.transaction;
    if (!txInfo?.transactionRaw || !txInfo.metaRaw) return;
    const slot = update.transaction!.slot;
    const events = parseDexEventsFromGrpcTransactionInfo(txInfo, slot, undefined);
    for (const ev of events) console.log(dexEventToJsonString(ev, 2));
  },
  onError: (err) => console.error(err.message),
  onEnd: () => {},
});

console.log("subscribed", sub.id);

Lighter path: parseLogsOnly(logs, signature, slot, …) — no transactionRaw; use applyAccountFillsToLogEvents if you need filled accounts without full gRPC meta.

Uses SHREDSTREAM_URL or SHRED_URL (default http://127.0.0.1:10800), or CLI --url. Not GRPC_URL.

The client decodes gRPC entries bytes in TypeScript (same layout as the Go shredstream/entries_decode path) and deserializes wire transactions with @solana/web3.js — no WebAssembly or wasm-pack build.

npx tsx examples/shredstream_example.ts -- --url=http://127.0.0.1:10800

shredstream_pumpfun_json.ts also needs a Solana RPC_URL (or --rpc) for ALTs.

From the package root after npm install. Examples use npx tsx and load src/ directly — no npm run build required for examples. Source is one file per row (click to open on GitHub or npm).

npm run aliases (same source files as the ShredStream rows above):

• npm run example:shredstream → shredstream_example.ts
• npm run example:shredstream:subscribe → shredstream_example.ts
• npm run example:shredstream:pumpfun-json → shredstream_pumpfun_json.ts

Env: gRPC examples need GRPC_URL + GRPC_TOKEN. ShredStream uses SHREDSTREAM_URL / SHRED_URL or --url; shredstream_pumpfun_json also needs RPC_URL / --rpc. See .env.example.

PumpFun, PumpSwap, Raydium AMM V4 / CLMM / CPMM, Orca Whirlpool, Meteora DAMM V2 / DLMM, Bonk Launchpad (see src/instr/).

• parseDexEventsFromGrpcTransactionInfo — needs transactionRaw + metaRaw (Rust gRPC parity).
• parseRpcTransaction / parseTransactionFromRpc — HTTP RPC path.
• dexEventToJsonString — BigInt-safe JSON.

npm run build
npm run check:migration   # parity checks; needs build

MIT — https://github.com/0xfnzero/sol-parser-sdk-nodejs