@chainlink/functions-toolkit/dist/fetchRequestCommitment.js

An NPM package with collection of functions that can be used for working with Chainlink Functions.

"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
exports.fetchRequestCommitment = void 0;
const ethers_1 = require("ethers");
const v1_contract_sources_1 = require("./v1_contract_sources");
const fetchRequestCommitment = async ({ requestId, provider, functionsRouterAddress, donId, toBlock = 'latest', pastBlocksToSearch = 1000, }) => {
    let fromBlock;
    const latestBlock = await provider.getBlockNumber();
    if (toBlock === 'latest') {
        fromBlock = latestBlock - pastBlocksToSearch;
    }
    else {
        if (toBlock > latestBlock) {
            toBlock = latestBlock;
        }
        fromBlock = toBlock - pastBlocksToSearch;
        if (fromBlock < 0) {
            fromBlock = 0;
        }
    }
    const functionsRouter = new ethers_1.Contract(functionsRouterAddress, v1_contract_sources_1.FunctionsRouterSource.abi, provider);
    const donIdBytes32 = ethers_1.utils.formatBytes32String(donId);
    let functionsCoordinatorAddress;
    try {
        functionsCoordinatorAddress = await functionsRouter.getContractById(donIdBytes32);
    }
    catch (error) {
        throw Error(`${error}\n\nError encountered when attempting to fetch the FunctionsCoordinator address.\nEnsure the FunctionsRouter address and donId are correct and that that the provider is able to connect to the blockchain.`);
    }
    const functionsCoordinator = new ethers_1.Contract(functionsCoordinatorAddress, v1_contract_sources_1.FunctionsCoordinatorSource.abi, provider);
    const eventFilter = functionsCoordinator.filters.OracleRequest(requestId);
    const logs = await provider.getLogs({
        ...eventFilter,
        fromBlock,
        toBlock,
    });
    if (logs.length === 0) {
        throw Error(`No request commitment event found for the provided requestId in block range ${fromBlock} to ${toBlock}`);
    }
    const event = functionsCoordinator.interface.parseLog(logs[0]);
    const commitmentData = event.args.commitment;
    const requestCommitment = {
        requestId: commitmentData.requestId,
        coordinator: commitmentData.coordinator,
        estimatedTotalCostJuels: BigInt(commitmentData.estimatedTotalCostJuels.toString()),
        client: commitmentData.client,
        subscriptionId: Number(commitmentData.subscriptionId.toString()),
        callbackGasLimit: BigInt(commitmentData.callbackGasLimit.toString()),
        adminFee: BigInt(commitmentData.adminFee.toString()),
        donFee: BigInt(commitmentData.donFee.toString()),
        gasOverheadBeforeCallback: BigInt(commitmentData.gasOverheadBeforeCallback.toString()),
        gasOverheadAfterCallback: BigInt(commitmentData.gasOverheadAfterCallback.toString()),
        timeoutTimestamp: BigInt(commitmentData.timeoutTimestamp.toString()),
    };
    return requestCommitment;
};
exports.fetchRequestCommitment = fetchRequestCommitment;