How to get value from api request in startup ConfigureServices C# mvc .net core 3
string page = HttpContext.Request.Query["page"].ToString();
string conn = null;
string req = ; //I want to get request value
foreach (ConnectionStringSettings c in System.Configuration.ConfigurationManager.ConnectionStrings)
{
if(c.ConnectionString == req)
{
conn = c.ConnectionString;
}
}
services.AddDbContext<ApplicationDbContext>(options =>
options.UseSqlServer(Configuration.GetConnectionString(conn)));