Dropbox API integration on AWS Lambda gets FetchError (ETIMEDOUT) - node.js

Question

I have a node.js app which runs on AWS Lambda. The Lambda is connected with a VPC. It goes internet with a static IP. I use v10.23.0 dropbox-sdk-js. It always seems to run on my local but it sometimes runs on the lambda, sometimes gets fetch error.
My code is like this:
async function main() {
const Dropbox = require('dropbox').Dropbox;
const dropbox = {
dbx: new Dropbox({
accessToken: process.env.ACCESS_TOKEN,
pathRoot: JSON.stringify({ '.tag': 'namespace_id', 'namespace_id': process.env.NAMESPACE_ID })
})
};
const payload = {
path: '',
recursive: true,
include_media_info: false,
include_deleted: false,
include_has_explicit_shared_members: true,
include_mounted_folders: true,
include_non_downloadable_files: true
};
let hasMore = true;
let entries = [];
let response;
let cursor;
while (hasMore) {
try {
if (cursor) {
response = await dropbox.dbx.filesListFolderContinue({ cursor: cursor });
}
else {
response = await dropbox.dbx.filesListFolderGetLatestCursor(payload);
response = await dropbox.dbx.filesListFolderContinue({ cursor: response.result.cursor });
}
console.info('Entries: ', JSON.stringify(response.result.entries));
cursor = response.result.cursor;
entries = entries.concat(response.result.entries);
hasMore = response.result.has_more;
}
catch (error) {
console.info(error);
return error;
}
}
}
main();
Error log:
2022-01-20T08:22:18.579Z 67caa239-e75c-46ce-be4c-0fcf6c154694 INFO FetchError: request to https://api.dropboxapi.com/2/files/list_folder/continue failed, reason: connect ETIMEDOUT 162.125.4.19:443
at ClientRequest.<anonymous> (/var/task/node_modules/dropbox/node_modules/node-fetch/lib/index.js:1483:11)
at ClientRequest.emit (events.js:400:28)
at TLSSocket.socketErrorListener (_http_client.js:475:9)
at TLSSocket.emit (events.js:400:28)
at emitErrorNT (internal/streams/destroy.js:106:8)
at emitErrorCloseNT (internal/streams/destroy.js:74:3)
at processTicksAndRejections (internal/process/task_queues.js:82:21) {
type: 'system',
errno: 'ETIMEDOUT',
code: 'ETIMEDOUT'
}

Answer 1

I deattached VPC from lambda and it worked. I think AWS blocks fetching while you are using VPC.