// check if route is legal, from start to finish.
static bool CheckRoute(RDJTPRequest req)
{
if (req.Method == "echo")
{
return(true);
}
if (!req.Path.Contains("/"))
{
return(false);
}
var path = req.Path.Split("/");
if (path[1] != "api")
{
return(false);
}
if (path[2] != "categories")
{
return(false);
}
return(true);
}
static RDJTPRequest ParseRequest(string content)
{
var request = new RDJTPRequest();
request = JsonConvert.DeserializeObject <RDJTPRequest>(content);
return(request);
}
// no need for checks. just return body.
static RDJTPResponse HandleEcho(RDJTPRequest req)
{
var response = new RDJTPResponse()
{
Status = "1 OK", Body = req.Body
};
return(response);
}
// check if date null or empty and if its able to parse
static string CheckDate(RDJTPRequest req)
{
var msg = "";
if (string.IsNullOrEmpty(req.Date))
{
msg = "illegal date";
}
var tmpdate = new double();
if (!double.TryParse(req.Date, out tmpdate))
{
msg = "illegal date";
}
return(msg);
}
static RDJTPResponse HandleUpdate(RDJTPRequest req, List <Category> categories)
{
var path = req.Path.Split("/");
if (path.Length < 4)
{
return(HandleException(RDJTPStatus.Bad_Request));
}
var newElement = new Category();
// if body is illegal, we will have exception on deserialize
try
{
newElement = JsonConvert.DeserializeObject <Category>(req.Body);
}
catch (Exception)
{
return(new RDJTPResponse()
{
Status = "4 Bad Request Illegal Body"
});
}
// path[3] is id
var elm = categories.Find(x => x.cid == Convert.ToInt32(path[3]));
if (elm == null)
{
return(HandleException(RDJTPStatus.Not_Found));
}
categories[categories.IndexOf(elm)] = newElement;
return(new RDJTPResponse()
{
Status = "3 Updated"
});
}
static RDJTPResponse HandleCreate(RDJTPRequest req, List <Category> categories)
{
var newElement = JsonConvert.DeserializeObject <Category>(req.Body);
if (string.IsNullOrEmpty(newElement.name))
{
return(HandleException(RDJTPStatus.Bad_Request));
}
var listlength = categories.Count;
newElement.cid = listlength + 1;
categories.Add(newElement);
var body = JsonConvert.SerializeObject(newElement);
return(new RDJTPResponse()
{
Status = "2 Created", Body = body
});
}
// body check for specified methods.
static bool CheckRequest(RDJTPRequest req)
{
if (req.Method == "create" || req.Method == "update" || req.Method == "echo")
{
if (req.Body == null)
{
return(false);
}
}
if (req.Method != "echo")
{
if (req.Path == null)
{
return(false);
}
}
return(true);
}
// body check and exception message building for request
static string CheckResource(RDJTPRequest req)
{
var msg = "";
if (req.Method == "create" || req.Method == "update" || req.Method == "echo")
{
if (req.Body == null)
{
msg += "missing body";
}
}
if (req.Method != "echo")
{
if (req.Path == null)
{
msg += "missing path";
}
}
return(msg);
}
static RDJTPResponse HandleRead(RDJTPRequest req, List <Category> categories)
{
var response = new RDJTPResponse();
var path = req.Path.Split("/");
// if only 3 elements exists in path, we have /api/categories
// if over, we have /api/categories/<id>
if (path.Length < 4)
{
response.Status = "1 Ok";
response.Body = JsonConvert.SerializeObject(categories);
return(response);
}
else
{
response.Status = "1 Ok";
int cid;
// path[3] is id - try to parse
if (!int.TryParse(path[3], out cid))
{
return(HandleException(RDJTPStatus.Bad_Request));
}
var element = categories.Find(x => x.cid == cid);
if (element == null)
{
return(HandleException(RDJTPStatus.Not_Found));
}
response.Body = JsonConvert.SerializeObject(element);
return(response);
}
}
static RDJTPResponse HandleDelete(RDJTPRequest req, List <Category> categories)
{
var path = req.Path.Split("/");
if (path.Length < 4)
{
return(HandleException(RDJTPStatus.Bad_Request));
}
var elm = categories.Find(x => x.cid == Convert.ToInt32(path[3]));
if (elm == null)
{
return(HandleException(RDJTPStatus.Not_Found));
}
categories.Remove(elm);
return(new RDJTPResponse()
{
Status = "1 OK"
});
}
