Error: Timed out while waiting for handshake in Lambda logs - node.js

Question

The function of SFTP is working locally and it has the correct configuration.
The problem is with the logs of Lambda that complains about the configuration I believe by giving me an Error: Timed out while waiting for a handshake.
const config = {
host: 'ftp.xxxx.at',
port: '22',
username: 'SFTP_xxx',
password: 'xxx9fBcS45',
MD5_Fingerprint: 'xxx:8f:5b:1a',
protocol: "sftp",
algorithms: {
serverHostKey: ['ssh-rsa', 'ssh-dss']
}
};
// get file
// get sftp file
// here ....
const get = () => {
sftp.connect(config).then(() => {
return sftp.get('./EMRFID_201811210903.csv', null, 'utf8', null);
}).then((stream) => {
let body = stream.on('data', (chunk) => {
body += chunk;
})
stream.on('end', () => {
uploadRFIDsToS3(body)
// close connection
sftp.end()
});
}).catch((err) => {
console.log('catch err:', err)
})
};
-
vpc:
securityGroupIds:
- sg-01c29be1d8fbxx59
subnetdIds:
- subnet-007a88d9xxea434d
-
2019-02-18T13:53:51.121Z e688c7bd-24fc-45a1-a565-f2a4c313f846 catch err: { Error: Timed out while waiting for handshake
at Timeout._onTimeout (/var/task/node_modules/ssh2-sftp-client/node_modules/ssh2/lib/client.js:695:19)
at ontimeout (timers.js:482:11)
at tryOnTimeout (timers.js:317:5)
at Timer.listOnTimeout (timers.js:277:5) level: 'client-timeout' }
I added VPC and Security Group in AWS and I still get the same error.
I ran out of ideas of how to fix it.

Answer 1

Increase the time-out value for the lambda function. The option to allocate more memory and time-out are some of the settings for any lambda function in aws

Answer 2

I figure it out.
What was wrong is that Lambda was actually going to another function without getting the connection established.
So what I did is that I added await to the connection and other functions that should not interfere with each other to make to work.
To understand more about await go to this link:
https://javascript.info/async-await