lbs

local blobstore (lbs)

simple blobstore that leverages the local file system to store blobs. lbs is written in nodejs and leverages sqlite3 for metadata. lbs is meant as a library within your nodejs application, not for individual users.

design

all blobs are stored to the blobs directory of the current working directory, the sqlite3 index is stored at blobs/.lbs.

blob keys

keys are based on a sha512 hash of the file contents and uses only the first 32 hexadecimal characters from the hash, this keeps keys short in case they're used in urls.

security

lbs leverages a very simple security mechanism, a random token is generated for each blob that is 8 hexadecimal characters long. the token does not expire, though theoretically could be updated.

api

1. init - initializes blob store
2. put - store blob onto filesystem returning the actual sqlite3 record
3. get - retrieve blob in buffer format, needs to be converted to string

requirements

1. node 4.0.0
2. npm

installation

1. npm install lbs

development

1. git clone [e-mail]:stephenhu/lbs
2. npm install
3. mocha

usage

var lbs = require("lbs");
 
lbs.init(function(done) {
});
 
lbs.put("path/to/file", "appname", function(err, res) {
  
  console.log(res);
  
  lbs.get(res.key, res.application, res.token, function(err, buf) {
    console.log(buf);
  });
  
});

outputs

{ id: "",
  key: "",
  filename: "",
  extension: "",
  bytes: 0,
  token: "",
  application: "",
  dirty: false,
  version: 0,
  properties: "",
  createdAt: "",
  updatedAt: ""
}
 
// TODO: get sample output from lbs.get

faq