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get-exchangerates.js
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get-exchangerates.js
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import {
Wallet,
LocalProvider,
FileContentsQuery,
ExchangeRates,
} from "@hashgraph/sdk";
import dotenv from "dotenv";
dotenv.config();
async function main() {
if (process.env.OPERATOR_ID == null || process.env.OPERATOR_KEY == null) {
throw new Error(
"Environment variables OPERATOR_ID, and OPERATOR_KEY are required."
);
}
const wallet = new Wallet(
process.env.OPERATOR_ID,
process.env.OPERATOR_KEY,
new LocalProvider()
);
const resp = await new FileContentsQuery()
.setFileId("0.0.112")
.executeWithSigner(wallet);
const exchangeRates = ExchangeRates.fromBytes(resp);
console.log(`Current numerator ${exchangeRates.currentRate.cents}`);
console.log(`Current denominator ${exchangeRates.currentRate.hbars}`);
console.log(
`Current expiration time ${exchangeRates.currentRate.expirationTime.toString()}`
);
console.log(
`Current Exchange Rate ${exchangeRates.currentRate.exchangeRateInCents}`
);
console.log(`Next numerator ${exchangeRates.nextRate.cents}`);
console.log(`Next denominator ${exchangeRates.nextRate.hbars}`);
console.log(
`Next expiration time ${exchangeRates.nextRate.expirationTime.toString()}`
);
console.log(
`Next Exchange Rate ${exchangeRates.nextRate.exchangeRateInCents}`
);
}
void main();