dynamodb-table-sync v1.0.1

Sync two and more dynamodb table

dynamodb has limit on number of indexes. We can only create 5 global index in dynamodb. If our use case need more than 5 indexes, we will have to create replica of that table. To keep these replica table in sync with master table we can use this module. This module should be used with aws dynamodb stream trigger and aws lambda.

How to use:

/*
arg1: dynamodbMap => map of AWS.DynamoDB object and AWS region 
arg2: config=> map of master table and array of map of replica table name and aws region of that table 
arg3: event => event passed by lambda
arg4: callback function

see below code for more example
*/

const syncTable = require('dynamodb-table-sync').syncTable;
var AWS = require('aws-sdk');
exports.handler = function(event, context) {
	var dynamodbMap = {};
	dynamodbMap['us-east-1']=new AWS.DynamoDB({"endpoint":"https://dynamodb.us-east-1.amazonaws.com","region":"us-east-1"});
	//dynamodbMap['eu-west-1']=new AWS.DynamoDB({"endpoint":"https://dynamodb.eu-west-1.amazonaws.com","region":"eu-west-1"});
	
	// test is the master table
	// test1,test2,test3,test4 is the replica table of test
	var config = {"test1":[{name:"test2",region:"us-east-1"},{name:"test3",region:"us-east-1"}/*,{name:"test4",region:"eu-west-1"}*/]}
	syncTable(dynamodbMap,config,event,function(err,data){
		err && console.log(err);
		data && console.log(data);
		context.succeed();
	});
}