ceph

"osapi" or "ceph"

Common and CEPH Compatible Object Storage API

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If links in this document not avaiable, please access README on GitHub directly.

Milestone version 1.0.0 is released. The package now can be used to access different object storage servers.

Table of Contents

• Table Of Contents
• Get Started
  • Get Started With OpenStack Swift Server
  • Get Started With AWS S3 Server
• API
• Terms
• About
• References

Description

The name osapi is abbreviation of Object Storage Application Programming Interface. And, because this API is compatible with CEPH object storage, so it is also named ceph. You may install and require one of osapi and ceph at your will. For simplicity, we use osapi hereinafter.

osapi is based on OpenStack SWIFT API and Amazon S3 API. Before osapi@1.0.0, the package offers a standalone sub module for each style. Since 1.0.0, the two sub modules are nearly compatible with each other. Both of them implements a common interface Connection.

Table Of Contents

• Get Started
  • Get Started In OpenStack Swift Style
  • Get Started In AWS S3 Style
• Documentations
• Terms
• About
• References

Links

• CHANGE LOG
• Homepage

Get Started

const osapi = require('osapi');

let conn = osapi.createConnection({
    endPoint   : 'http://storage.example.com/',
    subuser    : 'userName:subUserName',
    key        : '380289ba59473a368c593c1f1de6efb0380289ba5',
    container  : 'containerName',
});

conn.createObject('hello/world', 'Hello world!', (err) => {
    // ...
});

conn.readObject('hello/world', (err, data) => {
    // ...
    data.contentType;
    data.buffer;
});

Get Started With OpenStack Swift Server

const swift = require('osapi/swift');

let conn = new swift.Connection({
    endPoint   : 'http://storage.example.com/',
    subuser    : 'userName:subUserName',
    key        : '380289ba59473a368c593c1f1de6efb0380289ba5',
                 // generally 40 characters 
    tempURLKey : '380289ba59473a368c593c1f1de6efb0', 
                 // generally 32 characters
    container  : 'containerName',
});

conn.createObject('hello/world', 'Hello world!', (err) => {
    // ...
});

conn.readObject('hello/world', (err, data) => {
    // ...
    data.contentType;
    data.buffer;
});

Get Started With AWS S3 Server

const s3 = require('osapi/s3');

let conn = new s3.Connection({
    endPoint        : 'http://storage.example.com/',
    accessKey       : '380289ba59473a368c59', 
                      // 20 characters 
    secretAccessKey : '380289ba59473a368c593c1f1de6efb0380289ba5', 
                      // 40 characters
    bucket          : 'bucketName',
});

let options = {
    name: 'hello/world',
    meta: { /* self defined meta info */ }
};
let content = 'Hello world!';
conn.createObject(options, content)
    .then(ret => {
        // ...
    })
    .catch(err => {
        // ...
    });

conn.readObject('hello/world', (err, data) => {
    // ...
    data.contentType;
    data.buffer;
    data.meta;
});

API

Please read documentation.

Terms

Amazon Simple Storage Service (S3) and OpenStack Swift are similiar but still two different things.

S3	SWIFT	meaning
bucket	container	An container belongs to one account and is used to store objects.
access_key	-	Unique token used to identify an account.
secret_secret_key	-	Secret token accompanying the access_key and used to verify the requests.
-	key	Secret token used to generate access token for current subuser.
-	temp_url_key	Secret token used to generate temporary downloading URLs for objects.
-	user	Account.
-	subuser	User under specified account.

About

For convenience, this package is published in following names (alias):

• ceph
• osapi

References

• S3 vs Swift