Provides set
, push
, pull
, and liveStreamOn
methods to your LevelDB
npm install level-path
var LevelUp = require('levelup'),
LevelPath = require('level-path');
var db = LevelUp('./testdb');
LevelPath(db);
var person = { name: 'Maiah', occupation: 'Ninja' };
db.set('/', person, function (err) {
if (!err) console.log('Saved person under root path');
});
This will put LevelDB data structure at the root
path.
name = Maiah
occupation = Ninja
You can also save any valid JSON structure.
var person = {
name: 'Maiah',
occupation: 'Ninja',
tools: {
lang: 'js'
}
};
db.set('/', person, function (err) {
if (!err) console.log('Saved person under root path');
});
This will put LevelDB data structure at the root
path.
name = Maiah
occupation = Ninja
tools/lang = js
You can also specify a path other than the root
.
var person = { name: 'Maiah', occupation: 'Ninja' };
db.set('/person', person, function (err) {
if (!err) console.log('Saved person under root path');
});
This will put LevelDB data structure at the person
path.
person/name = Maiah
person/occupation = Ninja
var person = { name: 'Maiah', occupation: 'Ninja' };
db.push('persons', person, function (err) {
if (!err) console.log('Saved person!');
});
This will put LevelDB data structure like below with auto-generated uuid
.
persons/65cdd174-259e-4e9d-9a73-3f8f3bd12843/name = Maiah
persons/65cdd174-259e-4e9d-9a73-3f8f3bd12843/occupation = Ninja
db.pull('persons', function (err, res) {
if (!err) {
console.dir(res);
}
});
This will show a JSON like below.
{
65cdd174-259e-4e9d-9a73-3f8f3bd12843: {
name: 'Maiah',
occupation: 'Ninja'
}
}