ساخت فرم انستاگرام

[karim2074]

با سلام دوستان من از ویژوال استودیو دات نت 2019 استفاده میکنم یه سورس میخوام که بشه به انستاگرام وصل بشه یعنی یوزر و پسوورد رو که درست وارد کردم زدم پیغام نشسون بده درسته اگر هم اشتباه باشه بگه اشتباه هستش از چندین کد استفاده کردم منتها نوشته بود واسه سال 2013 به بعد دیگه عوض شده ممنون میشم کمک کنید
اونجایی که متن رو زخیم کردم اونجا رو خطا میده

  Dim cc As New CookieContainer

    Dim HWR As HttpWebRequest

    Dim HWP As HttpWebResponse

    Public Function Toresponse(ByVal url As String, ByVal refer As String) As String

        HWR = CType(HttpWebRequest.Create(url), HttpWebRequest)

        HWR.CookieContainer = cc

        If refer <> "" Then

            HWR.Referer = refer

        End If

        HWP = CType(HWR.GetResponse(), HttpWebResponse)

        Return New StreamReader(HWP.GetResponseStream()).ReadToEnd

    End Function

    Public Function ToResponse(ByVal url As String, ByVal post As String, ByVal refer As String) As String

        HWR = CType(HttpWebRequest.Create(url), HttpWebRequest)

        HWR.Method = "post"

        HWR.CookieContainer = cc '10.0 version browser

        HWR.UserAgent = "Applewebkit/537.36 (KHTML, Like Gecko)=Mozilla/10.0 Windows/NT 6.1 Chrome/28.0.1468.0 Safari/537.36"

        If refer <> "" Then

            HWR.Referer = refer

        End If

        Dim bytearr() As Byte = Encoding.Default.GetBytes(post)

        HWR.ContentLength = bytearr.Length

        Dim datastream As Stream = HWR.GetRequestStream()

        datastream.Write(bytearr, 0, bytearr.Length)

        HWP = CType(HWR.GetResponse(), HttpWebResponse)

        Return New StreamReader(HWP.GetResponseStream()).ReadToEnd

 End Function

 Dim html As String = Toresponse("https://www.instagram.com/accounts/login/", "")

         Dim token As String = html.Substring(html.IndexOf("csrfmiddlewaretoken")  ).Split(""""c)(2)

        Dim uname As String = txtUsername.Text

        Dim upwd As String = txtPassword.Text

        Dim SB As New StringBuilder

        SB.Append("csrfmiddlewaretoken=" & token)

        SB.Append("&username" & uname)

        SB.Append("csrfmiddlewaretoken=" & token)

        SB.Append("&password" & upwd)

        html = ToResponse("https://www.instagram.com/accounts/login/", SB.ToString, "https://www.instagram.com/accounts/login/")

        If html.Contains("""username"":""" & uname) Then

            MsgBox("login Successfully", MsgBoxStyle.OkOnly + MsgBoxStyle.Information, "Login")

        ElseIf html.Contains("Please Enter a correct username and password.") Then

            MsgBox("Invalid username or password", MsgBoxStyle.OkOnly + MsgBoxStyle.Information, "Invalid")

        Else

            MsgBox("Unble login account", MsgBoxStyle.OkOnly + MsgBoxStyle.Exclamation, "Unable")

        End If