/Javascript/Node.js/Set in Dynamo DB not properly incrementing nodejs lamnda function

Set in Dynamo DB not properly incrementing nodejs lamnda function

var AWS = require('aws-sdk');
var documentClient = new AWS.DynamoDB.DocumentClient({'region': 'eu-central-1'});

exports.handler = function(item, context, callback) {

    var params = {
        TableName: "my-table",
        Key:{
            "id": item.id
        },
        UpdateExpression: "ADD iteration :iteration SET itemdata = :itemdata",
        ExpressionAttributeValues:{
            ':iteration': 1,
            ':itemdata' : item.data
        },
        ReturnValues:"NONE"
};

documentClient.update(params, function(err, data) {
    if (err) {
      console.log("Error", err);
      const errResponse = {
        statusCode: 500,
        headers: {
          "Access-Control-Allow-Origin": "*"
        },
        body: JSON.stringify({ Error: 500, device : "DynamoDB", detail : err })
      };
      callback(null, errResponse);
    } else {
      console.log("Success", params.Items);
      const response = {
        statusCode: 200,
        headers: {
          "Access-Control-Allow-Origin": "*"
        },
        body: JSON.stringify("upsert complete.")
      };
      callback(null, response);
    }
  });
};

Source: stackoverflow.com

Similar codes

0 vote156 views1 answer
Nodejs fs delete entire folde
Javascript Node.js
10 votes148 views5 answers
What is dotenv in nodejs
Javascript Node.js
1 vote149 views1 answer
Nodejs recursively read directory
Javascript Node.js
0 vote142 views1 answer
Nodejs format text
Javascript Node.js
0 vote144 views1 answer
How to use jwt jsonwebtoken package in node js using npm
Javascript Node.js
0 vote143 views1 answer
How to append response header in node
Javascript Node.js
1 vote158 views1 answer
Nodejs redis setex
Javascript Node.js
19 votes155 views3 answers
Node read file sync
Javascript Node.js
1 vote167 views1 answer
Node js ffmpeg image to video
Javascript Node.js
3 votes148 views1 answer
Dynamodb get all items nodejs
Javascript Node.js