BasicsReel #31 · 4 Nov 2026

API kya hoti hai? Dhaba ke waiter se samjho

API (Application Programming Interface) app aur server ke beech ka tay kiya hua raasta hai. App HTTP request bhejta hai (method + path + headers jaise auth token), server kaam karta hai aur database se data laata hai, phir status code (200 OK, 404, 401...) ke saath response deta hai. Common methods: GET (padho), POST (naya banao), PATCH (thoda badlo), DELETE (hatao). App seedha database ko touch nahi karta: API hi tay karti hai ki kya allowed hai.

Links

MDN: HTTP request methods GET, POST, PATCH, DELETE

MDN: HTTP response status codes 200, 401, 404, 503...

Aaj ye karo

Terminal mein ek asli API call karo: curl -i https://api.github.com/users/octocat
Response ki pehli line mein status code dekho (200 OK).
Headers aur JSON body alag alag pehchaano.
Ek galat path try karo (users/yeh-user-nahi-hai-123) aur 404 dekho.

curl -i https://api.github.com/users/octocat

Sources

MDN Web Docs, GitHub REST API; 4 Nov 2026 ko check kiya.