node-webhdfs
============


Hadoop WebHDFS REST API (2.2.0) client library for node.js with fs module like (asynchronous) interface.

Examples

Writing to the remote file:

``javascript
var WebHDFS = require('webhdfs');
var hdfs = WebHDFS.createClient();

var localFileStream = fs.createReadStream('/path/to/local/file');
var remoteFileStream = hdfs.createWriteStream('/path/to/remote/file');

localFileStream.pipe(remoteFileStream);

remoteFileStream.on('error', function onError (err) {
// Do something with the error
});

remoteFileStream.on('finish', function onFinish () {
// Upload is done
});
`

Reading from the remote file:

`javascript
var WebHDFS = require('webhdfs');
var hdfs = WebHDFS.createClient({
user: 'webuser',
host: 'localhost',
port: 80,
path: '/webhdfs/v1'
});

var remoteFileStream = hdfs.createReadStream('/path/to/remote/file');

remoteFileStream.on('error', function onError (err) {
// Do something with the error
});

remoteFileStream.on('data', function onChunk (chunk) {
// Do something with the data chunk
});

remoteFileStream.on('finish', function onFinish () {
// Upload is done
});
`

TODO

* Implement all calls (GETCONTENTSUMMARY, GETFILECHECKSUM, GETHOMEDIRECTORY, GETDELEGATIONTOKEN, RENEWDELEGATIONTOKEN, CANCELDELEGATIONTOKEN, SETREPLICATION, SETTIMES)
* Improve documentation
* More examples

Tests

Running tests:

`bash
npm test
``

License

MIT