Opera

import json
from websocket import create_connection

ws = create_connection("wss://www.getavenir.co/ws")
token = "paste_token_here"

ws.send(json.dumps({"action": "operaConnect", "token": token, "requestId": "c1"}))
print(ws.recv())

ws.send(json.dumps({
    "action": "operaPlace",
    "requestId": "p1",
    "orders": [
        {"type": "bid", "price": 9, "quantity": 1, "instrumentId": 0},
        {"type": "bid", "price": 10, "quantity": 1, "instrumentId": 0},
    ],
}))
print(ws.recv())
ws.close()

const token = "paste_token_here";
const ws = new WebSocket("wss://www.getavenir.co/ws");

ws.onopen = () => {
  ws.send(JSON.stringify({ action: "operaConnect", token, requestId: "c1" }));
};

ws.onmessage = (event) => {
  const msg = JSON.parse(event.data);
  console.log(msg);
  if (msg.type === "operaResult" && msg.op === "connect" && msg.status === 200) {
    ws.send(JSON.stringify({
      action: "operaPlace",
      requestId: "p1",
      orders: [
        { type: "bid", price: 9, quantity: 1, instrumentId: 0 },
        { type: "bid", price: 10, quantity: 1, instrumentId: 0 },
      ],
    }));
  }
};