csv-database

csv-database : node.js CSV database

Lightweight CRUD database, using CSV as storage. Powered by Typescript + async/await.

Features :

• complete CRUD API with model validation
• native JS object requests
• Typescript typings
• concurrency-ready

Usage

> const db = await csvdb("users.csv", ["id","name","mail"]);

> await db.get({mail: "[e-mail]"});
[ {id: 1, name: "johndoe", mail: "[e-mail]"} ]

> await db.add([{id: 2, name: "stevejobs", mail: "[e-mail]"}]);

Installation

$ npm install csv-database

API Reference

• csvdb
  • .get
  • .edit
  • .add
  • .delete

csvdb(filename, model [, delimiter]) ⇒ Promise<CsvDatabase>

Returns a database, given a CSV file and its model.

• ; as default delimiter
• file is created if it doesn't exist

Param	Type	Description
filename	string	csv file
model	string[]	database model
[optional] delimiter	string	custom delimiter

Example

const db = await csvdb("users.csv", ["id","name","mail"], ",");

db.get([predicate]) ⇒ Promise<Object[]>

Returns database content. If given a predicate, returns data that matches its key-values pairs.

• empty array if nothing found
• throws an error if predicate does not match csv model

Param	Type	Description
[optional] predicate	Object.partial	search predicate

Example

> await db.get();
[
    {id: 1, name: "johndoe", mail: "[e-mail]"},
    {id: 2, name: "frankmass", mail: "[e-mail]"}
]

> await db.get({name: "johndoe"});
[ {id: 1, name: "johndoe", mail: "[e-mail]"} ]

> await db.get({name: "stevejobs"});
[ ]

db.edit(predicate, data) ⇒ Promise<Object[]>

Edits data, given a search predicate object.

• returns a list of edited occurences

Param	Type	Description
predicate	Object.partial	search predicate
data	Object.partial	data that will replace found occurences key/values

Example

> await db.edit({name: "johndoe"}, {mail: "[e-mail]"});
[{1, "johndoe", "[e-mail]"}]

db.add(data) ⇒ Promise<Object[]>

Adds data (single object or array) to CSV.

• returns created occurences

Param	Type	Description
data	Object, Object[]	data to be added

Example

> await db.add({id: 3, name: "stevejobs", mail: "[e-mail]"});
[{id: 3, name: "stevejobs", mail: "[e-mail]"}]

db.delete(predicate) ⇒ Promise<Object[]>

Deletes all data that matches the given predicate.

• returns deleted occurences

Param	Type	Description
predicate	Object.partial	search predicare

Example

> await db.delete({id: 1});
[ {id: 1, name: "johndoe", mail: "[e-mail]"} ]

Local installation

Clone the project :

$ git clone https://github.com/ysnglt/node-csvdb

This project is made using Typescript. To generate the transpiled npm package, you need to run gulp :

$ gulp

You can run the full test suite with mocha :

$ npm i && npm run test