What are the characteristics of an OAuth token?

Question

How many characters long can an oauth access token and oauth access secret be and what are the allowed characters? I need to store them in a d

Answer 1

OAuth doesn't specify the format or content of a token. We simply use encrypted name-value pairs as token. You can use any characters in token but it's much easier to handle if the token is URL-safe. We achieve this by encoding the ciphertext with an URL-safe Base64.