Mastering Internet of Things

Parsing the form

The form will be sent using a Content-Type of application/x-www-form-urlencoded. This type is recognized by Waher.Content, and so decoding is simple. The form will be parsed into a string dictionary. All we need to do is to check that we get what we expect, and that the form has the correct parameters:

if (!req.HasData || req.Session == null) 
   throw new BadRequestException(); 
 
object Obj = req.DecodeData(); 
Dictionary<string, string> Form =  
   Obj as Dictionary<string, string>; 
 
if (Form == null || 
   !Form.TryGetValue("UserName", out string UserName) || 
   !Form.TryGetValue("Password", out string Password)) 
{ 
   throw new BadRequestException(); 
} 

We also need to check the source of the original request, in case we want to redirect the ...