Node.JS aws-sdk getting "socket hang up" error - node.js

Question

I am trying to get the pricing information of AmazonEC2 machines using "#aws-sdk/client-pricing-node" package.
Each time I will send a request to get the pricing information, process it, and send the request again, until all the information is obtained (no NextToken anymore). The following is my code.
const {
PricingClient,
} = require('#aws-sdk/client-pricing-node/PricingClient');
const {
GetProductsCommand,
} = require('#aws-sdk/client-pricing-node/commands/GetProductsCommand');
const agent = new https.Agent({
maxSockets: 30,
keepAlive: true,
});
const pricing = new PricingClient({
region: "us-east-1",
httpOptions: {
timeout: 45000,
connectTimeout: 45000,
agent,
},
maxRetries: 10,
retryDelayOptions: {
base: 500,
},
});
const getProductsCommand = new GetProductsCommand( { ServiceCode: 'AmazonEC2', });
async function sendRequest() {
let result = false;
while (!result) {
try {
const data = await pricing.send(getProductsCommand);
result = await handleReqResults(data);
} catch (error) {
console.error(error);
}
}
}
async function handleReqResults(data) {
// some data handling code here
// ...
//return false when there is "NextToken" in the response data
if (data.NextToken) {
setNextToken(data.NextToken);
return false;
}
return true;
}
The code will run for a while (variable time) and then stop with the following error:
{ Error: socket hang up
at createHangUpError (_http_client.js:332:15)
at TLSSocket.socketOnEnd (_http_client.js:435:23)
at TLSSocket.emit (events.js:203:15)
at TLSSocket.EventEmitter.emit (domain.js:448:20)
at endReadableNT (_stream_readable.js:1145:12)
at process._tickCallback (internal/process/next_tick.js:63:19)
code: 'ECONNRESET',
'$metadata': { retries: 0, totalRetryDelay: 0 } }
I had tried to run it on a GCP VM instance, and there was no such a problem. But the problem happens when I run it on my local machine.
Do anyone have any idea how to solve this problem?
(BTW: my node version is v10.20.1)