Lowdb

Flat JSON file database for Node

  • Serverless.

  • Multiple databases.

  • In-memory or disk-based.

  • 80+ methods from Lo-Dash API.

  • Asynchronous and fault-tolerant writing.

  • Extendable

LowDB uses Lo-Dash functional progamming API, it's a light weight DB implementation, which could be disk-based or in-memory database.

Installing it: $ npm install lowdb

Sample usage:

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var low = require('lowdb');

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var db = low();           // in-memory
var db = low('db.json'); // disk-based

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var db = low('db.json')
db('modules').push({ title: 'lowdb', type:'db-util'});
db('modules').push({ title: 'lodash', type:'util'});

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// Get all the titles.
db('modules')
  .pluck('title')
  .value()

On the db object we have the below actions:

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[ 'after',
  'assign',
  'at',
  'bind',
  'bindAll',
  'bindKey',
  'chain',
  'collect',
  'compact',
  'compose',
  'constant',
  'countBy',
  'create',
  'createCallback',
  'curry',
  'debounce',
  'defaults',
  'defer',
  'delay',
  'difference',
  'drop',
  'each',
  'eachRight',
  'extend',
  'filter',
  'flatten',
  'forEach',
  'forEachRight',
  'forIn',
  'forInRight',
  'forOwn',
  'forOwnRight',
  'functions',
  'groupBy',
  'indexBy',
  'initial',
  'intersection',
  'invert',
  'invoke',
  'keys',
  'map',
  'mapValues',
  'max',
  'memoize',
  'merge',
  'methods',
  'min',
  'object',
  'omit',
  'once',
  'pairs',
  'partial',
  'partialRight',
  'pick',
  'pluck',
  'property',
  'pull',
  'range',
  'reject',
  'remove',
  'rest',
  'select',
  'shuffle',
  'sortBy',
  'tail',
  'tap',
  'throttle',
  'times',
  'toArray',
  'transform',
  'union',
  'uniq',
  'unique',
  'unzip',
  'values',
  'where',
  'without',
  'wrap',
  'xor',
  'zip',
  'zipObject',
  'all',
  'any',
  'clone',
  'cloneDeep',
  'contains',
  'detect',
  'escape',
  'every',
  'find',
  'findIndex',
  'findKey',
  'findLast',
  'findLastIndex',
  'findLastKey',
  'findWhere',
  'foldl',
  'foldr',
  'has',
  'identity',
  'include',
  'indexOf',
  'inject',
  'isArguments',
  'isArray',
  'isBoolean',
  'isDate',
  'isElement',
  'isEmpty',
  'isEqual',
  'isFinite',
  'isFunction',
  'isNaN',
  'isNull',
  'isNumber',
  'isObject',
  'isPlainObject',
  'isRegExp',
  'isString',
  'isUndefined',
  'lastIndexOf',
  'mixin',
  'noConflict',
  'noop',
  'now',
  'parseInt',
  'random',
  'reduce',
  'reduceRight',
  'result',
  'runInContext',
  'size',
  'some',
  'sortedIndex',
  'template',
  'unescape',
  'uniqueId',
  'support',
  'templateSettings',
  'first',
  'last',
  'sample',
  'take',
  'head',
  'toString',
  'value',
  'valueOf',
  'join',
  'pop',
  'shift',
  'push',
  'reverse',
  'sort',
  'unshift',
  'concat',
  'slice',
  'splice' ]

All in all this a module that helps you for a quick prototype, not meant for high performance and is not scalable.

Thanks to typicode for this sweet module.

GIF FTW!:

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