Binance TIMESTAMP ERROR (Timestamp for this request is outside of the recvWindow. M 1) - unix-timestamp

Question

I'm using binance broker api, when executing my code.
I got this error :
data: {
code: -1021,enter code here
msg: 'Timestamp for this request is outside of the recvWindow.'
}
Then I have used binance server timestamp and get another error :
data: { code: -1022, msg: 'Signature for this request is not valid.' }
----- My sample code -------
'use strict'
//Modules
const crypto = require('crypto');
const axios = require('axios');
const moment = require('moment');
const keys = require('./config/keys');
//Keys
const apiKey = keys.keys.apiKey;
async function api_call(config){
var response = {}
try {
response = await axios(config);
response = {
error: false,
data : response.data
}
} catch (error) {
response = {
error: true,
data : error
}
}
return response;
}
async function get_binance_server_time(recvWindow=50000){
var timestamp = moment().unix();
var serverTime = 0;
var config = {
method: 'get',
url: `https://api.binance.com/api/v3/time`,
headers: {
'Content-Type': 'application/json',
'X-MBX-APIKEY': apiKey
}
};
var response = await api_call(config);
if(response.error){
response.data = {
serverTime : serverTime
}
}
serverTime = response.data.serverTime
console.log(timestamp);
console.log(response.data.serverTime);
if (timestamp < (serverTime + 1000) && (serverTime - timestamp) <= recvWindow) {
console.log("process");
} else {
console.log("Rejected");
}
return serverTime;
}
async function get_broker_account_information( _signature = null){
// Make the api call here
var serverTime = await get_binance_server_time();
var _timestamp = serverTime;
const query_string = `timestamp=${_timestamp}`;
const recvWindow = 50000
const signature = crypto.createHmac('sha256', apiKey).update(query_string).digest('hex')
var config = {
method: 'get',
url: `https://api.binance.com/sapi/v1/broker/info?timestamp=${_timestamp}&signature=${signature}&recvWindow=${recvWindow}`,
headers: {
'Content-Type': 'application/json',
'X-MBX-APIKEY': apiKey
}
};
var response = await api_call(config)
console.log(response.data);
return response;
}
// create_sub_account()
get_broker_account_information()
// get_binance_server_time()

Answer 1

Binance requires Unix timestamp in Milliseconds.
So you should change
var timestamp = moment().unix();
to
var timestamp = moment().unix()*1000;
Some time sync issues can be resolved by using an offset of about 15 seconds:
const offset = 15000;
var timestamp = moment().unix()*1000 - offset; // works flawlessly in my case
Also try using
const recvWindow = 60000 // maximum allowed
Important:
Your signature has to be generated from secret key, not api key. You need both, api key in header, secret key in signature calculation.
To gerenate a valid signature, all query parameters must be in the queryString, which you use to generate the signature.
Make a parameters object and convert it to a queryString:
var params = {
'timestamp': _timeStamp,
'recvWindow: 60000,
// other query parameters
};
var queryString = Object.keys(params).map(key => key + '=' + params[key]).join('&');
Then generate signature:
const signature = crypto.createHmac('sha256', apiSecret).update(queryString).digest('hex')

Answer 2

Just sync system time with network, is work for me.