SES.sendEmail in Lambda not calling Promise - node.js

Question

When I make a call to ses.sendEmail the promise is never called. This is function in my lambda layer being called by my lambda function.
Here's the sendEmail function I have..
var aws = require ('aws-sdk')
var ses = new aws.SES ({region: 'us-west-2'});
exports.sendEmail = async (to, from, subject, body) => {
var params = {
Destination: {
ToAddresses : [to]
},
Message: {
Body: {
Html: {
Charset: "UTF-8",
Data : body
}
},
Subject: {
Charset: "UTF-8",
Data : subject
}
},
Source: from
}
console.log ("Sending email with params (stringify) : ", JSON.stringify(params));
console.log ("SES = ", ses);
await ses.sendEmail (params, function (err, data) {
console.log ("inside email");
});
}
I see the "Sending email with params (stringify)" log output and the "SES = " log output (which shows what appears to be a valid SES). But I never see "inside email" in the log nor do I receive any emails.
I'm also outside of the ses sandbox as I've gotten approval after setting up my domain and successfully verifying it all. I am on the us-west-2 region. I have not verified any email addresses. Just the domain (ie. name#user.host... user.host is verified) as I assumed if the domain is verified then any email from that domain should be good for use in the "from".

Answer 1

I have used async await instead of promises. I was facing the same issue. Email is dispatched successfully in my local computer but when I deploy the lambda and start testing it live. Emails were not sent to the email address mentioned.
async function sendMail(content, email) {
const params = {
Destination: {
ToAddresses: [email.toLowerCase()],
},
Message: {
Body: {
Text: {
Charset: "UTF-8",
Data: content.text,
},
Html: {
Charset: "UTF-8",
Data: content.html,
},
},
Subject: {
Charset: "UTF-8",
Data: content.subject,
},
},
Source: secretManagerData.senderEmail,
};
const sendPromise = await AWS_SES.sendEmail(params).promise();
console.log(sendPromise);
}

Answer 2

There are mistakes in calling the functions. When you call the function, you don't need to give a space with it.
var aws = require('aws-sdk'); // these are functions, call them without space
var ses = new aws.SES({region: 'us-west-2'}); // this
exports.sendEmail = async (to, from, subject, body) => {
try {
var params = {
Destination: {
ToAddresses : [to]
},
Message: {
Body: {
Html: {
Charset: "UTF-8",
Data : body
}
},
Subject: {
Charset: "UTF-8",
Data : subject
}
},
Source: from
}
console.log("Sending email with params (stringify) : ", JSON.stringify(params));
console.log("SES = ", ses);
const data = await sendmail(params);
return data;
} catch (e) {
console.log(e);
}
}
const sendmail = (params) => {
return new Promise((res, rej) => {
sendEmail(params = {}, (err, data)=>{
if (err) rej(err);
else res(data);
})
})
}
When you have to use async/await, you don't need to use callback and always use try/catch with async/await.

Answer 3

I got somehow same issue, it was resolved after used await before invoke sendEmail with promise and added API-Version for SES object.
const AWS = require ('aws-sdk')
const SES = new AWS.SES({apiVersion: '2010-12-01'});
try{
await SES.sendEmail(params).promise();
console.log("Email sent successfully");
}catch(err){
console.log("Failed to send email");
}