I need to call an external service FROM salesforce Authenticating against the External application is done via OAUTH so basically I need to write APEX code that uses HttpRequest and passes in the header OAUTH information like consumer key, secret etc.

I'm not able to find any code sample or documentation

Any help will be much appreciated

Sharon

I need to call an external service FROM salesforce Authenticating against the External application is done via OAUTH so basically I need to write APEX code that uses HttpRequest and passes in the header OAUTH information like consumer key, secret etc.

Is there any code sample or documentation on this issue?