@deonis/ndb

NDB wrapper for NEDB:

nedb: https://github.com/louischatriot/nedb

Installation

wget https://github.com/deonis1/ndb

unzip ndb; cd ndb; npm install

Via NPM:

npm install https://github.com/deonis1/ndb

Usage

NDB contains the following functions which are similar to the mongodb api: insertOne, insertMany, find, findOne, deleteOne, deleteMany, updateOne, updateMany

Loading the module

const ndb = require("ndb");

Initializing the module

var db = new ndb();

Insert one item into the collection

db.insertOne(collection, {x:i, y:i+i, z:i*i})

Insert multiple items in collection

db.insertMany(collection, Array(5).fill({x:1, y:2, z:3}))

Find all items in the collection

db.find(collection, {})

Find one item in the collection

db.findOne(collection, {x:1, y:2, z:3})

Delete one item from the collection

db.deleteOne(collection, {x:1, y:2, z:3})

Delete many item in the collection

db.deleteMany(collection, {x:1, y:2, z:3})

Update one item in the collection

db.updateOne(collection, {x:1, y:2, z:3}, {x:4, y:5, z:6})

Update many item in the collection

db.updateMany(collection, {x:1, y:2, z:3}, {x:4, y:5, z:6})

Examples

async function test(){

var db = new ndb();
const collection = "testrun"+Math.random().toString();
console.log("insertOne 20 times");
for (let i = 0; i <20; i++){
    db.insertOne(collection, {x:i, y:i+i, z:i*i})
}
console.log("insertMany [5X{x:1, y:2, z:3}]");
db.insertMany(collection,  Array(5).fill({x:1, y:2, z:3}));

console.log("find all");
console.log(await db.find(collection, {}));   

console.log("Find one {x:1, y:2, z:3}");
console.log(await db.findOne(collection, {x:1, y:2, z:3}));

console.log("deleteOne {x:1, y:2, z:3}");
db.deleteOne(collection, {x:1, y:2, z:3});

console.log("Find 4 items remaining {x:1, y:2, z:3}");
console.log(await db.find(collection, {x:1, y:2, z:3}));

console.log("updateOne item {x:1, y:2, z:3} to {x:4, y:5, z:6}");   
db.updateOne(collection, {x:1, y:2, z:3}, {x:4, y:5, z:6});

console.log("Find updated item  {x:4, y:5, z:6}");
console.log(await db.find(collection,  {x:4, y:5, z:6}));

}