1.2.0 • Published 6 years ago
webhdfs v1.2.0
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:
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:
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:
npm test
License
MIT
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