dynamodb-dump

dump.js

const {DynamoDB} = require('aws-sdk');
const fs = require('fs')

let dynamodb = new DynamoDB({
  region: 'eu-central-1',
  endpoint: 'dynamodb.eu-central-1.amazonaws.com',
  accessKeyId: 'ACC',
  secretAccessKey: 'SEC'
});

var params = {
  TableName: "TABLE"
};

let client = new DynamoDB.DocumentClient({service: dynamodb});


let allItems = []

client.scan(params, onScan);

function onScan(err, data) {
  if (err) {
      console.error("Unable to scan the table. Error JSON:", JSON.stringify(err, null, 2));
  } else {        
      console.log("Scan succeeded.", data.Items.length);
      allItems = allItems.concat(data.Items)

      // continue scanning if we have more items
      if (typeof data.LastEvaluatedKey != "undefined") {
          console.log("Scanning for more...");
          params.ExclusiveStartKey = data.LastEvaluatedKey;
          client.scan(params, onScan);
      } else {
        console.log("Scanning done", allItems.length)
        fs.writeFileSync('dump.json', JSON.stringify(allItems), 'utf8')
      }
  }
}