A DynamoDB driver for Node.js, with:
- Syntactic sweeteners/mapping to handle Amazon DynamoDB's JSON format in NodeJS
- Efficient and transparent authentication and authentication refresh using Amazon STS
- Currently in production with more than 80 write/s, 60 read/s
Discussion Group: http://groups.google.com/group/node-dynamodb
Supports the following operations:
CreateTable
ListTables
DescribeTable
DeleteTable
UpdateTable
GetItem
PutItem
DeleteItem
UpdateItem
Query
Scan
Any contribution is welcome! There's still a lot of work to be done!
var ddb = require('dynamodb').ddb({ accessKeyId: '',
secretAccessKey: '' });
/* CreateTable */
ddb.createTable('foo', { hash: ['id', ddb.schemaTypes().string],
range: ['time', ddb.schemaTypes().number] },
{read: 10, write: 10}, function(err, details) {});
// res: { "CreationDateTime": 1.310506263362E9,
// "KeySchema": { "HashKeyElement": { "AttributeName": "AttributeName1",
// "AttributeType": "S"},
// "RangeKeyElement": { "AttributeName": "AttributeName2",
// "AttributeType": "N"} },
// "ProvisionedThroughput":{ "ReadCapacityUnits": 5,
// "WriteCapacityUnits": 10 },
// "TableName":"Table1",
// "TableStatus":"CREATING" }
/* ListTables */
ddb.listTables({}, function(err, res) {});
// res: { LastEvaluatedTableName: 'bar',
TableNames: ['test','foo','bar'] }
/* DescribeTable */
ddb.describeTable('a-table', function(err, res) {});
// res: { ... }
// flat [string, number, string array or number array] based json object
var item = { score: 304,
date: (new Date).getTime(),
sha: '3d2d6963',
usr: 'spolu',
lng: ['node', 'c++'] };
/* PutItem */
ddb.putItem('a-table', item, {}, function(err, res, cap) {});
ddb.getItem('a-table', '3d2d6963', null, {}, function(err, res, cap) {});
// res: { score: 304,
// date: 123012398234,
// sha: '3d2d6963',
// usr: 'spolu',
// lng: ['node', 'c++'] };
/* DeleteItem */
ddb.deleteItem('a-table', 'sha', null, {}, function(err, res, cap) {});
/* UpdateItem */
ddb.updateItem('a-table', '3d2d6963', null, { 'usr': { value: 'smthg' } }, {},
function(err, res, cap) {});
ddb.consumedCapacity();
/* Query */
ddb.query('test', '3d2d6963', function(err, res, cap) {...});
// res: { count: 23,
// lastEvaluatedKey: { hash: '3d2d6963' },
// items: [...] };
/* Scan */
ddb.scan('test', {}, function(err, res) {
if(err) {
console.log(err);
} else {
console.log(res);
}
});
// res: { count: 23,
// lastEvaluatedKey: { hash: '3d2d6963' },
// items: [...] };
More complete usage can be found in the examples directory
Put in your environment:
export DYNAMODB_ACCESSKEYID=YOURACCESSKEYID
export DYNAMODB_SECRETACCESSKEY=YOURSECRETKEYID
export DYNAMODB_TEST_TABLE=test
Make sure you have a test
table created and available with sha
as a hash key (string), then run:
make test
@karlseguin (Karl Seguin)
@imekinox (Juan Carlos del Valle)
@phstc (Pablo Cantero)
@cstivers78 (Chris Stivers)
@garo (Juho Mäkinen)
@paultax