Ethereum Node.js Integration with Binance API: Fixing “Timestamp” Error
As a developer working with Ethereum nodes and the Binance API, you probably know how important data synchronization between them is. However, problems can arise when integrating these components for a variety of reasons. In this article, we’ll address the “Timestamp” error that causes problems for our node.js applications, especially when using the Binance API.
Issue with “recvWindow”
When making requests to the Binance API using Node.js, it’s important to make sure that the timestamp of your request is within “recvWindow”. “recvWindow” is the minimum amount of time (in milliseconds) that the client must wait before sending a second request. This concept is crucial for managing parallel requests.
Timestamp Errors: Quick Reference
A timestamp error occurs when the timestamp of the current request exceeds recvWindow. This can happen due to several factors, such as:
- Network latency: Sudden spikes in network traffic or packet loss can cause timestamps to become out of sync.
- Time zone differences: Working with APIs that operate in different time zones can result in timestamp discrepancies.
- API version changes
: New API versions may introduce new requirements or limitations, such as increased recvWindow values.
Troubleshooting
To resolve this issue, follow these steps:
۱. Monitor network latency
Before diving into your Node.js code, monitor network latency using tools like ping, tcpdump, or dedicated network monitoring software (e.g. Prometheus, Grafana). This will help identify potential network connectivity issues.
۲. Check time zone difference
Make sure all components involved in your API requests are correctly configured to handle time zone differences. Make sure that:
- The Binance API is correctly configured for the client location.
- Node.js and other dependencies support time zone conversion.
Updated Node.js Code
To solve this problem, you can change your node.js code as follows:
“Javascript
const { Client } = require(‘cosmia-node’);
const bnb = new Client();
bnb.apiUrl = ‘
async function getMarketData(symbol) {
const params = {
Symbol,
limit: 10, // Adjust the number of requests as needed
timestamp: Date.now() – 1000, // Adjust the timestamp offset
};
try {
const result = waiting bnb.query(GETorders?symbol=${symbol}&limit=10×tamp=${params.timestamp});
return result.body;
} Catch(error) {
if (error.responseCode === 2004) { // Connection error
throw new Error(‘A connection error occurred’);
}
throw error;
}
}
// Usage example:
getMarketData(‘ETH/USDT’)
.then((data) => console.log(data))
.catch((error) => console.error(error));
“
۳. Set the “recvWindow” value
As a last resort, you can set the “recvWindow” value when making requests to the Binance API. This can be achieved by creating a separate function that manages the timestamp for API calls:
“Javascript
const MAX_RECV_WINDOW = 60000; // 1 minute
const keepTimestamps = {};
asynchronous function setReceiveTimestamp(symbol) {
const currentTimestamp = Date.now();
if (!receiveTimestamps[symbol]) {
takeTimestamps[symbol] = [];
}
keepTimestamps[symbol].push(currentTimestamp);
}
asynchronous function getTimestampForRequest(symbol, maxRecvWindow = MAX_RECV_WINDOW) {
setReceiveTimestamp(symbol);
// Get the latest timestamp
const timestamps = takeTimestamps[symbol];
const LatestTimestamp = Math.max(…timestamps);
if (latestTimestamp + maxRecvWindow < Date.