@drift-labs/sdk/lib/node/priorityFee/heliusPriorityFeeMethod.js

SDK for Drift Protocol

"use strict";
var __importDefault = (this && this.__importDefault) || function (mod) {
    return (mod && mod.__esModule) ? mod : { "default": mod };
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.fetchHeliusPriorityFee = exports.HeliusPriorityLevel = void 0;
const node_fetch_1 = __importDefault(require("node-fetch"));
var HeliusPriorityLevel;
(function (HeliusPriorityLevel) {
    HeliusPriorityLevel["MIN"] = "min";
    HeliusPriorityLevel["LOW"] = "low";
    HeliusPriorityLevel["MEDIUM"] = "medium";
    HeliusPriorityLevel["HIGH"] = "high";
    HeliusPriorityLevel["VERY_HIGH"] = "veryHigh";
    HeliusPriorityLevel["UNSAFE_MAX"] = "unsafeMax";
})(HeliusPriorityLevel || (exports.HeliusPriorityLevel = HeliusPriorityLevel = {}));
/// Fetches the priority fee from the Helius API
/// https://docs.helius.dev/solana-rpc-nodes/alpha-priority-fee-api
async function fetchHeliusPriorityFee(heliusRpcUrl, lookbackDistance, addresses) {
    try {
        const response = await (0, node_fetch_1.default)(heliusRpcUrl, {
            method: 'POST',
            headers: { 'Content-Type': 'application/json' },
            body: JSON.stringify({
                jsonrpc: '2.0',
                id: '1',
                method: 'getPriorityFeeEstimate',
                params: [
                    {
                        accountKeys: addresses,
                        options: {
                            includeAllPriorityFeeLevels: true,
                            lookbackSlots: lookbackDistance,
                        },
                    },
                ],
            }),
        });
        return await response.json();
    }
    catch (err) {
        console.error(err);
    }
    return undefined;
}
exports.fetchHeliusPriorityFee = fetchHeliusPriorityFee;