@d8x/perpetuals-sdk/dist/cjs/onChainPxFeed.js

Node TypeScript SDK for D8X Perpetual Futures

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const ethers_1 = require("ethers");
/**
 * OnChainPxFeed: get a price from a chainlink-style oracle
 */
class OnChainPxFeed {
    constructor(rpcs) {
        this.lastRpc = 0;
        this.lastResponseTs = 0;
        this.rpcs = rpcs;
        this.lastRpc = Math.floor(Math.random() * rpcs.length);
        this.provider = new ethers_1.JsonRpcProvider(this.rpcs[this.lastRpc]);
    }
    setRpc() {
        this.lastRpc = (this.lastRpc + 1) % this.rpcs.length;
        this.provider = new ethers_1.JsonRpcProvider(this.rpcs[this.lastRpc]);
    }
    async getPrice() {
        if (this.lastPx == undefined || Date.now() - this.lastResponseTs > 10 * 60 * 1000) {
            await this.fetchPrice(false);
            return this.lastPx;
        }
        this.fetchPrice(true);
        return this.lastPx;
    }
}
exports.default = OnChainPxFeed;
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