A commandline tool and repl (with autocomplete and suggestions for keys) for leveldb.

$npm install lev -g

Get the first 10 keys in the database, the path is optional.

lev path/to/db -k 10

Get the first ten records starting at bazz and ending at zomg.

lev -r 10 'bazz' 'zomg'

Stream a range of keys and values. Where limit is a number, start and end are strings.

Return the values in reverse.

Stream a range of keys.

Stream a range of values.

Fetch the data for a specific key.

Insert data for a specific key.

Delete the data for a particular key.

Delete a range starting from the first key until the second key if one is provided.

An approximate number of bytes of used by the given range.

Specify encoding type for just the values.

Specify encoding type for just the keys.

Specify encoding for both.

The REPL has autocomplete and suggestion lists for database keys. Type get('...<tab>, put('...<tab>, etc. Because some databases can be extremely large, you must specify a value when doing operations that stream data. If you are absolutely sure you want everything you can specify -1 as a value.

>lev path/to/db

compression = true
encoding = utf8
keyEncoding = utf8
valueEncoding = utf8
levelup version = 0.6.0

path/to/db>read(2)
path/to/db>
[
  {
    "key": "foo",
    "value": "bar"
  },
  {
    "key": "fuzz",
    "value": "bazz"
  }
]
path/to/db>

path/to/db>help()

   config()  Get the current configuration object
   pwd()     Path of the current working database
   create()  Return a new instance of leveldb
   close()   Close an instance of leveldb
   open()    Open an instance of leveldb
   use()     Select the current database to use
   ls()      list of databases
   read()    Read a range of keys and values from the database.
   keys()    Read a range of keys from the database.
   values()  Read a range of values from the database.
   get()     Fetch data from the store.
   put()     Insert data into the store.
   del()     Remove data from the store.
   delr()    Delete a range from the database.
   size()    An approximate number of bytes of used by the given range.
   help()    This help

path/to/db>

You can create a .lev file in your home directory and it will be used to set the defaults. Command line arguments will override the default settings in this file.

{
  "createIfMissing": true,
  "encoding": "json"
}