How to access token in Service file of a .NET using Dependency Injection ?

If a token obtained during authentication, We can store it in a service that’s injected into your classes. Following example illustrates how to access token in a service file.

public class UserService 
{
  private readonly IHttpContextAccessor _httpContextAccessor;
  
  public UserService(IHttpContextAccessor httpContextAccessor)
  {
     _httpContextAccessor = httpContextAccessor;
  }
  
  public void SomeMethod()
  {
    var accessToken = _httpContextAccessor.HttpContext.Request.Headers["Authorization"]
  }

}

Suppose If we receive token in the format of Bearer Your_Token and we want only token part then we can get it as follows

var parts = accessToken.ToString().Split(‘ ‘);

var token = parts[1]

If the Authorization header doesn’t start with Bearer, we should handle it appropriately based on our application’s requirements.