to get access token for the rest message sendng, is it possible not to put the client id and secret?

[chercm]

Hi 

i am trying to get the access token for authorisation to post the rest message , is it possible not to put the client id and password in the script ?

tokenRequest.setEndpoint('https://apigtwb2cnp.us.dell.com/auth/oauth/v2/token');

tokenRequest.setHttpMethod('POST');

tokenRequest.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');

tokenRequest.setRequestBody('grant_type=client_credentials&client_id=lxxxxx&client_secret=xxxxx');