AWS Lambda javascript-sdk , implementing dynamodb putItem method receive timeout - node.js

Question

I have tried on both Async Handlers and Non-Async Handlers ways,
to implement dynamodb putItem method. it returned an invalid response.
Its works for commented setTimeout function.
I tried by promisify the dynomodb putItem method in Non-Async Handler way as mentioned and official documentation https://docs.aws.amazon.com/lambda/latest/dg/nodejs-handler.html. But still no luck.
can some one point me out the issue on code?
const AWS = require('aws-sdk');
const dynamodb = new AWS.DynamoDB({
region: 'ap-south-1',
apiVersion: '2012-08-10'
});
exports.lambdaHandler = async function(event) {
const promise = new Promise(function(resolve, reject){
// setTimeout(function(){
// console.log("resolvedx")
// resolve({statusCode: 200, body: "resolvedx"})
// }, 200)
dynamodb.putItem({
TableName: 'CUSTOMER_LIST',
Item: {
'CUSTOMER_ID': { N: '012' },
'CUSTOMER_NAME': { S: 'zzzza' }
}
}
, function(err, data) {
if (err) {
console.log("err", err);
reject(JSON.stringify({statusCode:200, body:err}));
} else {
console.log("success", data);
resolve(JSON.stringify({statusCode:200, body:data}));
}
})
})
return promise
}
as Non-Async Handlers
exports.lambdaHandlerx = (event, context, callback) => {
const dbPromise = () => new Promise((resolve, reject) => {
console.log("inside db promise")
dynamodb.putItem({
TableName: 'CUSTOMER_LIST',
Item: {
'CUSTOMER_ID': { N: '023' },
'CUSTOMER_NAME': { S: 'asdddwa' }
}
}
, function(err, data) {
if (err) {
console.log("err", err);
reject(err);
} else {
console.log("success", data);
resolve(data);
}
})
})
Promise.all([dbPromise()]).then(data => {
console.log("then", data)
callback(null, {
'statusCode': 200,
'body': JSON.stringify({
message: "dataxz"+ JSON.stringify(data)
})
})
}
).catch(e => {
callback(null, {
'statusCode': 200,
'body': JSON.stringify({
message: 'err'
})
})
})
}
Output
Function returned an invalid response (must include one of: body, headers, multiValueHeaders or statusCode in the response object). Response received: