handler.js

'use strict'

var AWS = require('aws-sdk')
var ses = new AWS.SES()

// configure aws with credentials

AWS.config.update({
    accessKeyId: '',
    secretAccessKey: '',
    region: 'us-east-1'
})

// initialise dynamodb object
const dbObject = new AWS.DynamoDB.DocumentClient()

// email receiver
const RECEIVER = 'user@lightrains.com'

module.exports.sendmail = async (event, controller, callback) => {
    if (event.body) {
        let json = JSON.parse(event.body)
        let response = {}
        try {
            sendEmail(json, function(err, data) {
                context.done(err, null)
            })
            response = {
                message: 'success'
            }
        } catch (e) {
            console.log('error', e)
        }
        return callback(null, {
            statusCode: 200,
            body: JSON.stringify(response)
        })
    }

    // Use this code if you don't use the http event with the LAMBDA-PROXY integration
    // return { message: 'Go Serverless v1.0! Your function executed successfully!', event };
}

async function sendEmail(event, context) {
    var params = {
        Destination: {
            ToAddresses: [RECEIVER]
        },
        Message: {
            Body: {
                Text: {
                    Data: event.message,
                    Charset: 'UTF-8'
                }
            },
            Subject: {
                Data: event.subject,
                Charset: 'UTF-8'
            }
        },
        Source: event.email
    }
    // ses.sendEmail(params, done);
    ses.sendEmail(params, function(err, data) {
        if (err) console.log('error', err)
        else {
            // build email send parameters
            const details = {
                id: Math.floor(Date.now() / 1000),
                sender: event.email,
                receiver: RECEIVER,
                name: event.name,
                subject: event.subject,
                contactNumber: event.contactNumber,
                message: event.message,
                date: new Date()
            }

            saveDetails(details, function(err, data) {
                context.done(err, null)
            })
        }
    })
}

async function saveDetails(data) {
    try {
        // saving to dynamodb
        const params = {
            TableName: 'contactForm',
            Item: {
                id: data.id,
                sender: data.sender,
                receiver: data.receiver,
                name: data.name,
                subject: data.subject,
                contactNumber: data.contactNumber,
                message: data.message
            }
        }
        console.log('params', params)
        return await dbObject.put(params).promise()
    } catch (e) {
        console.log('error', e)
    }
}