register.js

const axios = require('axios');
const AWS = require('aws-sdk');
const region = 'eu-west-1';          // REGION SHOULD BE LIKE (eu-west-1)

const dynamodb = new AWS.DynamoDB({ region: region, apiVersion: '2012-08-10' });

exports.handler = async ({body}) => {
 const {data} = await axios.post("https://847some2lk.execute-api.eu-west-1.amazonaws.com/live/register", body);

 const item = {
   Item: {
     "sessionId": {
       S: data.sessionId
     },
     "name": {
       S: event.name
     },
     "start": {
       S: Date.now().toString()
     },
     "numberOfLetters": {
       N: data.nrOfLetters.toString()
     },
     "totalCharsGuessedRight": {
       N: "0"
     },
     "score": {
       N: "0"
     }
   },
   TableName: 'sessions'
 };

 try {
   await dynamodb.putItem(item).promise();
 }
 catch (err) {
   return {
     "statusCode": 500,
     "headers": {
       "Content-Type": "application/json"
     },
     "body": JSON.stringify(err.data),
     "isBase64Encoded": false
   };
 }

 return {
   "statusCode": 200,
   "headers": {
     "Content-Type": "application/json"
   },
   "body": JSON.stringify(data),
   "isBase64Encoded": false
 };
};