How to encode the access token properly

Question

http://api.microsofttranslator.com/v2/Ajax.svc/Translate?appId=Bearer%20http%3a%2f%2fschemas.xmlsoap.org%2fws%2f2005%2f05%2fidentity%2fclaims%2fnameidentifier=0166541233&http%3a%2f%2fschemas.microsoft.com%2faccesscontrolservice%2f2010%2f07%2fclaims%2fidentityprovider=https%3a%2f%2fdatamarket.accesscontrol.windows.net%2f&Audience=http%3a%2f%2fapi.microsofttranslator.com&ExpiresOn=1322323459&Issuer=https%3a%2f%2fdatamarket.accesscontrol.windows.net%2f&HMACSHA256=0qIUvO513ttc4iBzJN%2b9An3GmUbnggQwT8R5Y3pVSWs%3d&text=search&from=en&to=ja

Is this access token encoded properly? if not what characters need to be encoded? "&" ? "="?

This gives me 

ArgumentException: The Web Token must have a signature at the end. The incoming token did not have a signature at the end of the token. : ID=3835.V2_Json.Translate.3A018452"

Answer 1

The appId in your query string

Bearer%20http%3a%2f%2fschemas.xmlsoap.org%2fws%2f2005%2f05%2fidentity%2fclaims%2fnameidentifier=0166541233&http%3a%2f%2fschemas.microsoft.com%2faccesscontrolservice%2f2010%2f07%2fclaims%2fidentityprovider=https%3a%2f%2fdatamarket.accesscontrol.windows.net%2f&Audience=http%3a%2f%2fapi.microsofttranslator.com&ExpiresOn=1322323459&Issuer=https%3a%2f%2fdatamarket.accesscontrol.windows.net%2f&HMACSHA256=0qIUvO513ttc4iBzJN%2b9An3GmUbnggQwT8R5Y3pVSWs%3d

is wrong.

For the appId, you must first obtain the auth token through the POST request, prepend it with the "Bearer " and then you must encode the full string.

This encoded string is the appId that is to be used here. Not this string.

For your reference, if you have properly encoded the token, the token will start something like "Bearer+...." and not "Bearer%20". I used Python's urllib.urlencode for encoding the auth "Bearer " and token to the authId string.

I know that this thread is older for 6 months. I fell into the same problem at first. I couldn't find solution through google or bing. Solution came by trial and error. So I thought this information might save some one's time.