Skip to main content

SVM guide

@qorechain/svm is a thin, type-safe adapter over @solana/web3.js for QoreChain's Solana-compatible JSON-RPC. @solana/web3.js is a peer dependency. The package adds a client factory targeting the SVM RPC endpoint, key helpers, typed read wrappers, SOL transfer build/sign/send, and minimal native-program instruction builders.

npm i @qorechain/svm @solana/web3.js

Create a client​

import { createSvmClient } from "@qorechain/svm";

const client = createSvmClient({
  endpoints: { svmRpc: "https://svm.testnet.example" },
});

You can also pass rpcUrl, an existing connection, or rely on DEFAULT_SVM_RPC_URL (localhost 8899).

Keys​

Reconstruct a @solana/web3.js Keypair from a derived SVM secret key, or print an address:

import { deriveSvmAccount } from "@qorechain/sdk";
import { svmKeypairFromSecretKey, svmAddress } from "@qorechain/svm";

const account = await deriveSvmAccount(mnemonic);
const keypair = svmKeypairFromSecretKey(account.secretKey);
console.log(svmAddress(keypair)); // base58

Transfer SOL​

Build an unsigned transfer, then send it (sending needs a reachable node and a funded account):

import { LAMPORTS_PER_SOL } from "@solana/web3.js";

const lamports = Math.round(0.01 * LAMPORTS_PER_SOL);

// Build only (no broadcast):
const tx = client.buildTransferSol({ from: keypair, to: recipient, lamports });

// Or build + sign + send + confirm in one call:
// const sig = await client.transferSol({ from: keypair, to: recipient, lamports });

// Send an arbitrary transaction:
// const sig = await client.sendTransaction(tx, [keypair]);

// Simulate without submitting:
// const sim = await client.simulateTransaction(tx);

Programs​

Builders for the common native programs plus a generic invoke builder:

import {
  createMemoInstruction,
  createTransferTokenInstruction,
  createAssociatedTokenAccountInstruction,
  getAssociatedTokenAddress,
  createInvokeInstruction,
  PROGRAM_IDS,
  SYSTEM_PROGRAM_ID,
  TOKEN_PROGRAM_ID,
  ASSOCIATED_TOKEN_PROGRAM_ID,
  MEMO_PROGRAM_ID,
} from "@qorechain/svm";

// Attach a memo to a transaction.
tx.add(createMemoInstruction("hello from @qorechain/svm", [keypair.publicKey]));

// SPL-Token transfer, ATA creation, and a generic program invoke are also
// available via the builders above.

See the svm-transfer example for a runnable version.