JWT (JSON Web Token) Kya Hai? | JWT Explained in Simple Hindi

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Is video mein hum JWT (JSON Web Token) ke baare mein detail se samjhenge. JWT ek open standard hai jo secure authentication aur authorization ke liye use hota hai. Yeh token, client aur server ke beech mein securely information exchange karne mein madad karta hai.

Aap jaanenge ki kaise JWT ka use web applications mein hota hai, khaas kar user login systems mein, jahan token ke through user ki identity ko verify kiya jata hai. Hum JWT structure ko bhi samjhenge, jo ki 3 parts se bana hota hai: header, payload, aur signature.

Agar aap software development ya web security ke concepts samajhna chahte hain, toh yeh video aapke liye perfect hai! Is video ke baad aap JWT ke concept ko easily samajh paayenge aur use apne projects mein implement kar sakte hain.

#JWT #JSONWebToken #WebSecurity #Authentication #TechExplained #CodeHindi

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JWT, yaani JSON Web Token, ek compact, self-contained way hoti hai data ko transmit karne ka. Yeh ek open standard (RFC 7519) hai, jo information ko securely JSON format mein encode karne ke liye use hota hai. JWT ek string hoti hai jo client aur server ke beech information exchange mein use hoti hai.

JWT ka structure typically teen parts mein hota hai, jo base64url encoding ke zariye combine kiye jate hain:

1. Header: Header part JSON format mein hota hai aur typically two parameters contain karta hai:
- `alg` (Algorithm): Token ko sign karne ya verify karne ke liye use hone wala cryptographic algorithm ko specify karta hai (e.g., HMAC SHA256 or RSA).
- `typ` (Type): Token ka type hota hai, jo yeh indicate karta hai ki yeh JWT hai.