# NAME

Net::Amazon::DynamoDB::HighlyAvailable - Sync data across multiple regions

# SYNOPSIS

   use Net::Amazon::DynamoDB::HighlyAvailable;

   # the regions param must have a length of 2
   my $table = Amazon::DynamoDB::HighlyAvailable->new(
       table             => $table,       # required
       hash_key          => $hash_key,    # required
       range_key         => $range_key,
       regions           => [qw/us-east-1 us-west-1/],
       access_key_id     => ...,          # default: $ENV{AWS_ACCESS_KEY}
       secret_access_key => ...,          # default: $ENV{AWS_SECRET_KEY}
       timeout           => 1,            # default: 5
   );

   # create or update an item
   $table->put(Item => { planet => 'Mars', ... });

   # get the item with the specified primary key; returns a hashref
   my $item = $table->get(planet => 'Mars');

   # delete the item with the specified primary key
   $table->delete(planet => 'Mars');

   # scan the table for items; returns an arrayref of items
   my $items_arrayref = $table->scan();

   # scan the table for items; returns items as a hash of key value pairs
   my $items_hashref = $table->scan_as_hashref();

   # sync data between AWS regions using the 'last_updated' field to select
   # the newest data.  This method will permanently delete any items marked as
   # 'deleted'.
   $table->sync_regions();

# DESCRIPTION

Amazon says  "All data items ... are automatically replicated across multiple
Availability Zones in a Region to provide built-in high availability and data
durability."

If thats not highly available enough for you, you can use this module to sync
data between multiple regions.

This module is a wrapper around Net::Amazon::DynamoDB::Table.

# ACKNOWLEDGEMENTS

Thanks to [DuckDuckGo](http://duckduckgo.com) for making this module possible by donating developer time.

# LICENSE

Copyright (C) Eric Johnson.

This library is free software; you can redistribute it and/or modify
it under the same terms as Perl itself.

# AUTHOR

Eric Johnson <[email protected]>