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cookie-string-parser

v1.2.1

Published

This NPM package provides a simple cookie parser middleware and function to parse cookie strings for Express.js applications.It can also used in tokenized value using JWT and extract the value from that token.

Downloads

16

Readme

cookie-string-parser

This NPM package provides a simple cookie parser middleware and function to parse cookie strings for Express.js applications.It can also used in tokenized value using JWT and extract the value from that token.

Installation

Install package with npm

  npm install cookie-string-parser

Usage/Examples

javascript

cookieParser-middleware

const express=require("express");
const {cookieParser}=require("cookie-string-parser");

const PORT=process.env.PORT;

const app=express();

app.use(cookieParser);

app.get("/",(req,res)=>{
  console.log(req.cookies); // it will give key-value pair of cookies
  return res.status(200).send(req.cookies);
})

app.listen(PORT,()=>{
  console.log("staring...");
})

OR

parseCookieString-parse cookie string

const express=require("express");
const {parseCookieString}=require("cookie-string-parser");

const PORT=process.env.PORT;

const app=express();

app.get("/",(req,res)=>{
  let cookieObj=parseCookieString(req.headers.cookies);
  console.log(cookieObj); // it will give key-value pair of cookies
  return res.status(200).send(cookieObj);
})

app.listen(PORT,()=>{
  console.log("staring...");
})

setToken_getValue JWT

const express=require("express");
const {create_JWTtoken,verify_JWTtoken}=require("cookie-string-parser");

const PORT=process.env.PORT;

const app=express();

app.use(express.json());

app.post('/setCookie',(req,res)=>{
  const {username,email}=req.body;
  const token= create_JWTtoken([username,email],process.env.secret,{algorithm:'HS256'}); // note algorithm is optional. Default it is HS256.

  res.cookie('jwt',token);
  return res.status(200).send('cookie set');
})

app.get('/getCookie_value',(req,res)=>{

  const token=req.cookies.jwt;
  const value=verify_JWTtoken(token,process.env.secret,{algorithm:'HS256'}); // note algorithm is optional. Default it is HS256.);

  const username=value[0];
  const username_email=value[1];

  return res.status(200).send({username,username_email});
})

app.listen(PORT,()=>{
  console.log("staring...");
})

typescript

cookieParser-middleware

import express, { Application, Request, Response, NextFunction } from 'express';
import { cookieParser } from 'cookie-string-parser';

const app: Application = express();

app.use(cookieParser);

app.get('/', (req: Request, res: Response)=> {
  console.log(req.cookies); // it will give key-value pair of cookies
  return res.status(200).send(req.cookies);
});

app.listen(PORT,()=>{
  console.log("staring...");
});

OR

parseCookieString-parse cookie string

import express, { Application, Request, Response, NextFunction } from 'express';
import { parseCookieString } from 'cookie-string-parser';

const app: Application = express();

app.get("/", (req: Request, res: Response) =>{
  let cookieObj=parseCookieString(req.headers.cookie);
  console.log(cookieObj); // it will give key-value pair of cookies
  return res.status(200).send(cookieObj);
});

app.listen(PORT,()=>{
  console.log("staring...");
});

setToken_getValue JWT

import express, { Request, Response } from "express";
import { create_JWTtoken, verify_JWTtoken } from "cookie-string-parser";

PORT=process.env.PORT;

const app = express();

app.use(express.json());

app.post('/setCookie', (req: Request, res: Response) => {
  const { username, email } = req.body;
  const token = create_JWTtoken([username, email], process.env.secret as string, { algorithm: 'HS256' });

  res.cookie('jwt', token);
  return res.status(200).send('cookie set');
});

app.get('/getCookie_value', (req: Request, res: Response) => {
  const token = req.cookies.jwt;
  const value = verify_JWTtoken(token, process.env.secret as string, { algorithm: 'HS256' });

  const username = value[0];
  const email = value[1];

  return res.status(200).send({ username, email });
});

app.listen(PORT, () => {
  console.log("starting...");
});

Build

npm run build

License

MIT