We have a web application, working as a Visualforce page, with Signed Request authentication. Is there a way of making SOAP API calls from backend, using the token provided in "client" field of CanvasRequest object?
This topic describes how to make SOAP calls having OAuth authentication: http://www.salesforce.com/us/developer/docs/api/Content/sforce_api_guidelines_yourtools.htm - would it work with the access token retrieved via signed request authentication? What should we put into "oauth_consumer_key", "oauth_signature" and other required fields?
Thanks!