@d8x/perpetuals-sdk/dist/esm/onChainPxFeedRedStone.js

Node TypeScript SDK for D8X Perpetual Futures

import { decNToFloat } from "./d8XMath";
import { sleepForSec } from "./utils";
import OnChainPxFeed from "./onChainPxFeed";
import { Contract } from "ethers";
/**
 * OnChainPxFeedRedStone: get a price from a chainlink-style oracle
 */
export default class OnChainPxFeedRedStone extends OnChainPxFeed {
    constructor(ctrctAddr, decimals, rpcs) {
        super(rpcs);
        this.delayMs = 5000;
        this.fetchInProgress = false;
        this.ctrctAddr = ctrctAddr;
        this.decimals = decimals;
    }
    async fetchPrice(delay) {
        if (!this.fetchInProgress) {
            this.fetchInProgress = true;
            this.lastResponseTs = Date.now();
            let hasErr = false;
            for (let trial = 0; trial < this.rpcs.length; trial++) {
                try {
                    let proxyContract = new Contract(this.ctrctAddr, OnChainPxFeedRedStone.abi, this.provider);
                    let data = await proxyContract.latestRoundData();
                    this.lastPx = decNToFloat(data.answer, this.decimals);
                    break;
                }
                catch (err) {
                    console.log(`onChainPxSources error ${this.rpcs[this.lastRpc]}: retrying with other rpc`);
                    hasErr = true;
                }
                this.setRpc();
            }
            if (hasErr) {
                console.log("onChainPxSources not successful");
            }
            if (delay) {
                await sleepForSec(this.delayMs / 1000);
            }
            this.fetchInProgress = false;
        }
    }
}
//static ctrctAddr = "0x119A190b510c9c0D5Ec301b60B2fE70A50356aE9";
OnChainPxFeedRedStone.abi = require("./abi/redStoneAbi.json");
//# sourceMappingURL=onChainPxFeedRedStone.js.map