Sending transactions

// ethers.js v6
import { JsonRpcProvider, Transaction, getBytes, hashMessage } from "ethers";

const provider = new JsonRpcProvider("https://api.quantumapi.io/v1/rpc");

const txData = {
  to: "0x1865476914c85900110Ffc6B092436366E98Db55",
  nonce: await provider.getTransactionCount(myAddress),
  gasLimit: 21_000n,
  gasPrice: await provider.getGasPrice(),
  value: 1_000_000_000_000_000_000n,    // 1 QRC
  chainId: 20803n,
  type: 0
};

// Sign with your post-quantum signer (custom integration; see Signing transactions)
const signed = await myPostQuantumSigner.signTransaction(txData);

// Broadcast
const txHash = await provider.send("eth_sendRawTransaction", [signed]);
console.log(txHash);

curl -X POST "$BASE_URL/v1/transactions" \
  -H "Authorization: Bearer $API_KEY" \
  -H "Idempotency-Key: $(uuidgen)" \
  -H "Content-Type: application/json" \
  -d '{
    "wallet_id": "...",
    "to_address": "0x1865...",
    "value": "1000000000000000000",
    "asset": "QRC"
  }'

curl -s -X POST $RPC -H 'Content-Type: application/json' --data '{
  "jsonrpc":"2.0","method":"eth_feeHistory","id":1,
  "params":["0x10","latest",[25,50,75]]
}'

# Get the receipt (null until mined)
curl -s -X POST $RPC -H 'Content-Type: application/json' --data '{
  "jsonrpc":"2.0","method":"eth_getTransactionReceipt","id":1,
  "params":["0x..."]
}'