Защита от MEV в Apex

TX_BASE64=$(node apex-tx.mjs)

# JSON-RPC: the third param is mevProtect.
curl -s "$APEX_RPC" \
  -H "Content-Type: application/json" \
  -H "x-api-key: $APEX_API_KEY" \
  -d "{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"sendTransaction\",\"params\":[\"$TX_BASE64\",{\"encoding\":\"base64\"},true]}"

# Binary route: the mev_protect query flag.
TX_BASE64=$(node apex-tx.mjs)
echo "$TX_BASE64" | base64 --decode | curl -s "$APEX_RPC/send-bin?mev_protect=1" \
  -H "Content-Type: application/octet-stream" \
  -H "x-api-key: $APEX_API_KEY" \
  --data-binary @-

import { apexRpc, buildTx, confirm } from "./apex-tx.mjs";

const tx = await buildTx({ label: "apex mev protect" });
const signature = await apexRpc("sendTransaction", [
  Buffer.from(tx.serialize()).toString("base64"),
  { encoding: "base64" },
  true, // mevProtect
]);
console.log("accepted:", signature);
console.log("landed in slot", await confirm(signature));

import base64

from apex_tx import apex_rpc, build_tx, confirm

tx = build_tx(label="apex mev protect")
signature = apex_rpc("sendTransaction", [
    base64.b64encode(bytes(tx)).decode(),
    {"encoding": "base64"},
    True,  # mevProtect
])
print("accepted:", signature)
print("landed in slot", confirm(signature))

// QUIC: protection is a connection option. Every send on this client is protected.
use apex_sender_client::{ApexSenderClient, ClientOptions, Region};

let client = ApexSenderClient::connect_with_options(
    ClientOptions {
        endpoint: Some(Region::Frankfurt.quic_endpoint()),
        mev_protect: true,
        ..Default::default()
    },
    &api_key,
)
.await?;
let signature = client.send_transaction(&tx).await?;