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I am using mail-confirm to validate an email address and the Lambda function is returning rather than waiting for the promise result on

email.check().then(results=>

And jumps straight to

console.log('callback issue');

and returns. I would expect the email check to finish and return the results object inside of the callback. Instead the function is returned before the promise can resolve. Any pointers will be appreciated.

Function example:

const MailConfirm = require('mail-confirm');
const isemail = require('isemail');

module.exports.app = async (event, context) => 
 let request = JSON.parse(event.body)


 if(request.email)
 var emailToValidate = request.email
 if(isemail.validate(emailToValidate))
 console.log(`$emailToValidate - stage 1 pass`);

 const email = new MailConfirm(
 emailAddress: emailToValidate,
 timeout: 2000,
 invalidMailboxKeywords: ['noreply', 'noemail']
 );

 //Promise issue
 email.check().then(results=>
 console.log(results); 
 return 
 statusCode: 200,
 body: JSON.stringify(
 validatedEmail: emailToValidate,
 isValid: true,
 ),
 ; 
 ).catch(err=>
 console.log(`$emailToValidate stage 2/3 failed`)
 return 
 statusCode: 200,
 body: JSON.stringify(
 validatedEmail: emailToValidate,
 isValid: false,
 message: err,
 ),
 ; 
 );
 //Returns here
 console.log('callback issue');
 else
 return 
 statusCode: 200,
 body: JSON.stringify(
 validatedEmail: emailToValidate,
 isValid: false,
 message: 'Failed stage 1 validation',
 ),
 ; 
 
 

 // return 
 // statusCode: 500,
 // body: JSON.stringify(
 // message: 'Something went wrong.',
 // ),
 // ;
;

EDIT:

Thanks everyone for your responses. I have implemented the await and it is working nicely when testing

test@gmail.com

. However if i validate

test@email.com

the email.check() function doesn't return and my lambda function returns with a blank response (502 to API gateway). I am no sure what happens after let results = await email.check(); when validating test@email.com. My Lambada function is not timing out.

 try
 let results = await email.check();
 console.log(results); 
 //Returns ok on test@gmail.com
 return 
 statusCode: 200,
 body: JSON.stringify(
 validatedEmail: emailToValidate,
 isValid: true,
 ),
 ;
 catch(err)
 console.log(`$emailToValidate stage 2/3 failed`)
 return 
 statusCode: 200,
 body: JSON.stringify(
 validatedEmail: emailToValidate,
 isValid: false,
 message: err,
 ),
 ; 
 

Lambda logs

START Version: $LATEST
test@email.com - stage 1 pass
END
REPORT Duration: 647.88 ms Billed Duration: 700 ms Memory Size: 128 MB Max Memory Used: 21 MB


API Gateway 502 Bad Gateway (Due to the Lambda function response being null)


"message": "Internal server error"


EDIT 2:

It turns out i am getting a 554 error in mail-confirm when validating test@email.com.