viem
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JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.estimateFeesPerGas = estimateFeesPerGas;
exports.internal_estimateFeesPerGas = internal_estimateFeesPerGas;
const fee_js_1 = require("../../errors/fee.js");
const getAction_js_1 = require("../../utils/getAction.js");
const estimateMaxPriorityFeePerGas_js_1 = require("./estimateMaxPriorityFeePerGas.js");
const getBlock_js_1 = require("./getBlock.js");
const getGasPrice_js_1 = require("./getGasPrice.js");
async function estimateFeesPerGas(client, args) {
return internal_estimateFeesPerGas(client, args);
}
async function internal_estimateFeesPerGas(client, args) {
const { block: block_, chain = client.chain, request, type = 'eip1559', } = args || {};
const baseFeeMultiplier = await (async () => {
if (typeof chain?.fees?.baseFeeMultiplier === 'function')
return chain.fees.baseFeeMultiplier({
block: block_,
client,
request,
});
return chain?.fees?.baseFeeMultiplier ?? 1.2;
})();
if (baseFeeMultiplier < 1)
throw new fee_js_1.BaseFeeScalarError();
const decimals = baseFeeMultiplier.toString().split('.')[1]?.length ?? 0;
const denominator = 10 ** decimals;
const multiply = (base) => (base * BigInt(Math.ceil(baseFeeMultiplier * denominator))) /
BigInt(denominator);
const block = block_
? block_
: await (0, getAction_js_1.getAction)(client, getBlock_js_1.getBlock, 'getBlock')({});
if (typeof chain?.fees?.estimateFeesPerGas === 'function') {
const fees = (await chain.fees.estimateFeesPerGas({
block: block_,
client,
multiply,
request,
type,
}));
if (fees !== null)
return fees;
}
if (type === 'eip1559') {
if (typeof block.baseFeePerGas !== 'bigint')
throw new fee_js_1.Eip1559FeesNotSupportedError();
const maxPriorityFeePerGas = typeof request?.maxPriorityFeePerGas === 'bigint'
? request.maxPriorityFeePerGas
: await (0, estimateMaxPriorityFeePerGas_js_1.internal_estimateMaxPriorityFeePerGas)(client, {
block: block,
chain,
request,
});
const baseFeePerGas = multiply(block.baseFeePerGas);
const maxFeePerGas = request?.maxFeePerGas ?? baseFeePerGas + maxPriorityFeePerGas;
return {
maxFeePerGas,
maxPriorityFeePerGas,
};
}
const gasPrice = request?.gasPrice ??
multiply(await (0, getAction_js_1.getAction)(client, getGasPrice_js_1.getGasPrice, 'getGasPrice')({}));
return {
gasPrice,
};
}
//# sourceMappingURL=estimateFeesPerGas.js.map