node-swiftclient

Openstack Swift Client Library for Node.js

A Node.js library for interacting with OpenStack Swift Object Storage. This library provides robust functionality for managing containers and objects, offering a clean and straightforward API for common Swift operations. It supports all Swift authentication versions (v1.0, v2.0, and v3).

Installation

Install the library using npm/pnpm:

npm install node-swiftclient

or

yarn install node-swiftclient

Quick Example

Here’s how to create a container, upload a file, and list its objects:

import { SwiftClient } from 'node-swiftclient';
import { Readable } from 'stream';

async function example() {
  // Initialize SwiftClient
  const client = new SwiftClient({
    authVersion: 3,
    authUrl: 'https://auth.example.com/v3',
    userName: 'demo',
    apiKey: 'demo',
    tenant: 'test',
    tenantDomain: 'Default',
    domain: 'Default',
  });

  // Create a container
  await client.createContainer('my-container', true, {
    'X-Meta-Info': 'example',
  });

  // List containers
  const containers = await client.listAllContainers();
  console.log('Containers:', containers);

  // Upload an object as a stream
  const container = client.getContainer('my-container');
  const stream = Readable.from('Hello, Swift!');
  await container.putObject('docs/hello.txt', stream);

  //List all object in pseudo-folder 'img'
  const objects = container.listObjects({ prefix: 'docs/' });
  console.log(objects);

  // Download the object as a buffer
  const buffer = await container.getObjectAsBuffer('docs/hello.txt');
  console.log('Downloaded Content:', buffer.toString());

  // Clean up: Delete the object and container
  await container.deleteObject('docs/hello.txt');
  await client.deleteContainer('my-container');
}

Key Features

• Container Management: Create, delete, and list containers.
• Object Management: Upload, download, delete, and list objects in containers.
• Metadata: Set and retrieve metadata for containers and objects.
• Authentication: Supports Swift authentication versions 1.0, 2.0, and 3.

API Documentation

SwiftClient

Method	Description
createContainer(containerName, publicRead, meta, extraHeaders)	Creates a new container with optional metadata and headers.
getContainer(containerName)	Retrieves a SwiftContainer object for managing objects in a container.
listAllContainers(query?, extraHeaders?)	Lists all containers with optional filters and headers.
deleteContainer(containerName)	Deletes a container.
getClientInfo()	Retrieves information about the authenticated Swift client.
getContainerMeta(containerName)	Retrieves metadata for the specified container.

SwiftContainer

Method	Description
listObjects(options?)	Lists objects in the container with optional filters (e.g., prefix, limit).
getObjectMeta(objectName)	Retrieves metadata for a specific object.
patchObjectMeta(objectName, meta, extraHeaders?)	Updates metadata for an object.
putObject(objectName, data, meta, extraHeaders)	Uploads an object using a buffer or stream with optional metadata and headers.
deleteObject(objectName, when?)	Deletes an object, optionally scheduling its deletion for a future time.
getObject(objectName)	Retrieves an object as a readable stream.
getObjectAsBuffer(objectName)	Retrieves an object as a buffer.

Configuration

SwiftClient supports multiple authentication methods. Examples:

Auth Version 1

const client = new SwiftClient({
  authVersion: 1,
  authUrl: 'https://auth.example.com/v1',
  username: 'user',
  password: 'pass',
  tenant: 'tenant-id',
});

Auth Version 2

Note: Version 2 is deprecated and you should upgrade your swift storage.

const client = new SwiftClient({
  authVersion: 2,
  authUrl: 'https://auth.example.com/v2',
  username: 'user',
  password: 'pass',
  tenant: 'tenant-id',
  region: 'region-name',
});

Auth Version 3

const client = new SwiftClient({
  authVersion: 3,
  authUrl: 'https://auth.example.com/v3',
  username: 'user',
  password: 'pass',
  tenant: 'tenant-id',
  region: 'region-name',
});

License

This library is licensed under the MIT License.