When working with NSE IPO APIs or any secure third-party API, you must handle authentication tokens. Tokens are required for every subsequent request, but they also expire after a certain period (e.g., 60 minutes).
In this blog, let’s break down a real-world C# implementation for:
Checking if a valid token exists in the database
Generate a new token when expires
Updating the database with the latest token
Handling API request/response safely