Hi
I believe I have everything I need now but I can’t generate the signature correctly. I have used Postman and everything works, if I move the header produced by Postman into my code it works.
I have been using the code below, can any tell me if this is wrong?
Dim str_oauth_signature As String = String.Empty
Dim str_base_format As String = “oauth_consumer_key={0}&oauth_nonce={1}&oauth_signature_method={2}&oauth_timestamp={3}&oauth_token={4}&oauth_version={5}”
Dim str_base = String.Format(str_base_format,
oauth_consumer_key,
oauth_nonce,
oauth_signature_method,
oauth_timestamp,
oauth_token,
oauth_version)
str_base = String.Concat(“POST&”, Uri.EscapeDataString(str_url), “&”, Uri.EscapeDataString(str_base))
Dim str_composite_key As String = String.Concat(Uri.EscapeDataString(oauth_consumer_secret), “&”, Uri.EscapeDataString(oauth_token_secret))
Dim hasher As HMACSHA1 = New HMACSHA1(ASCIIEncoding.ASCII.GetBytes(str_composite_key))
Using hasher
str_oauth_signature = Convert.ToBase64String(hasher.ComputeHash(ASCIIEncoding.ASCII.GetBytes(str_base)))
End Using
