Ranidb

A simple "database" that use JSON file for Node.JS.

Installation

Add ranidb to your existing Node.js project.

with npm :

npm i ranidb

or with yarn:

yarn add ranidb

Used with node

const ranidb = require("ranidb");

API

• Ranidb()
• db.save()
• db.getAll()
• db.push()
• db.find()
• db.filter()
• db.findIndex()
• db.clear()
• db.updata()
• Options

Ranidb(path_db)

The main entry point for creating a new Ranidb instance.

• path_db it must be string for path to file json, for example : "./db/data.json"

let db = new ranidb("./db/data.json");

save(data)

This function will delete all data and then rewrite it again.

• data it must be Array data.

let db = new ranidb("./db/data.json");
let arr = [
  { id: 1, name: "sami", age: 21 },
  { id: 2, name: "was", age: 19 },
  { id: 3, name: "ahmed", age: 17 },
];

db.save(arr);

getAll()

This function will return data in file json.

let db = new ranidb("./db/data.json");
db.getAll();

/* Output :
[
    // all data in DB (File json)
]
*/

push(data)

This function will push data in file json.

• data it must be object data.

let db = new ranidb("./db/data.json");
let data = { name: "ahmed", age: 17 };

db.push(data);
/* Output :
{
   {"_id": "R_Ddwtu1A", name:"ahmed", age:17}
}
*/

filter(data)

This function will data to need find.

• data it must be object data or function.

let db = new ranidb("./db/data.json");

db.filter((user) => user.age > 12);

/* Output :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { _id: 'rqACSWx6kA', user: 'fred', age: 40, active: false }
]
*/

db.filter((user) => user.active == true);

/* Output :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { _id: 'DniDQHMNpo', user: 'pebbles', age: 1, active: true },
  { _id: 'SflmjJaVN', user: 'barney', age: 36, active: true },
  { _id: 'mL7Np2hr_Z', user: 'pebbles', age: 1, active: true }
]
*/

Sub-functions

• delete

let db = new ranidb("./db/data.json");
/* in file json :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { _id: 'DniDQHMNpo', user: 'pebbles', age: 1, active: true },
  { _id: 'SflmjJaVN', user: 'barney', age: 36, active: true },
  { _id: 'mL7Np2hr_Z', user: 'pebbles', age: 1, active: true }
]
*/

//this anthor way to used filter "db.filter({age: 1})" 😉

db.filter({ age: 1 }).delete();
/* in file json :
[
  { _id: 'DniDQHMNpo', user: 'pebbles', age: 1, active: true },
  { _id: 'mL7Np2hr_Z', user: 'pebbles', age: 1, active: true }
]
*/

• updata

let db = new ranidb("./db/data.json");
/* in file json :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { _id: 'DniDQHMNpo', user: 'pebbles', age: 1, active: true },
  { _id: 'SflmjJaVN', user: 'barney', age: 36, active: true },
  { _id: 'mL7Np2hr_Z', user: 'pebbles', age: 1, active: true }
]
*/

db.filter({ age: 1 }).updata([
  { name: "update 1" },
  { name: "update 2", active: false },
]);
/* in file json :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { name:"update 1" },
  { _id: 'SflmjJaVN', user: 'barney', age: 36, active: true },
  { name:"update 2" , active: false }
]
*/

• put

let db = new ranidb("./db/data.json");
/* in file json :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { _id: 'DniDQHMNpo', user: 'pebbles', age: 1, active: true }
]
*/

//this anthor way to used filter "db.filter({age: 1})" 😉

db.filter({ age: 1 }).put({ user: "new user" });
/* in file json :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { _id: 'DniDQHMNpo', user: 'new user', age: 1, active: true }
]
*/

in filter.put() or .update() if you noUsed array in param will edit all item with same value

find(data)

This function will data to need find.

• data it must be object data.

let db = new ranidb("./db/data.json");

db.find({ _id: "rqACSWx6kA" });

/* Output :
    {"_id": "rqACSWx6kA","user": "fred","age": 40,"active": false}
*/

db.find({ _id: "rqACSWx6kA", age: 40 });

/* Output :
    {"_id": "rqACSWx6kA","user": "fred","age": 40,"active": false}
*/

all Sub-functions work in find like filter ()

findIndex(data)

This function will find index for this data.

• data it must be object data.

let db = new ranidb("./db/data.json");

/*
[
    {
        "_id": "Wtl9v2x-Q",
        "user": "barney",
        "age": 36,
        "active": true
    },
    {
        "_id": "rqACSWx6kA",
        "user": "fred",
        "age": 40,
        "active": false
    },
    {
        "_id": "DniDQHMNpo",
        "user": "pebbles",
        "age": 1,
        "active": true
    }
]
*/

db.findIndex({ _id: "Wtl9v2x-Q" });

/* Output :
    0
*/

db.findIndex({ _id: "rqACSWx6kA", age: 40 });

/* Output :
    1
*/

// for not find
db.findIndex({ _id: "rqACSWx6kA", age: 42 });

/* Output :
    -1
*/

clear()

This function will clear all data in ranidb.

let db = new ranidb("./db/data.json");
/* in file json :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { _id: 'DniDQHMNpo', user: 'pebbles', age: 1, active: true },
  { _id: 'SflmjJaVN', user: 'barney', age: 36, active: true },
  { _id: 'mL7Np2hr_Z', user: 'pebbles', age: 1, active: true }
]
*/
db.clear();
/* Output :
   []
*/

updata(find, data)

This function will data to need find.

• find it must be opject.
• data it must be object.

let db = new ranidb("./db/data.json");
/* in file json :
[
  { _id: 'Wtl9v2x-Q', user: 'barney', age: 36, active: true },
  { _id: 'DniDQHMNpo', user: 'pebbles', age: 1, active: true },
  { _id: 'SflmjJaVN', user: 'barney', age: 36, active: true },
  { _id: 'mL7Np2hr_Z', user: 'pebbles', age: 1, active: true }
]
*/

let data = {
  _id: "Wtl9v2x-Q",
  user: "barney",
  age: 42,
  active: true,
};

db.updata({ _id: "Wtl9v2x-Q" }, data);

/* Output :
   { _id: 'Wtl9v2x-Q', user: 'barney', age: 42, active: true }
*/

Options

now we're going to make changes to some of the virtual things

• idType it must be string.

  • random (default)

  let db = new ranidb("./db/data.json", { idType: "random" });
  /*
  is like let db = new ranidb("./db/data.json")
  */
  /* Output :
     { _id: 'Wtl9v2x-Q', ... }
  */

  • empty

  let db = new ranidb("./db/data.json", { idType: "empty" });
  /* Output :
     { ... }
  */

  • gradual

  let db = new ranidb("./db/data.json", { idType: "gradual" });
  /* Output :
     { _id: '1', ... },
     { _id: '2', ... },
     { _id: '3', ... },
     { _id: '4', ... },
     { _id: '5', ... }
  */