I have created one new Integration and gave access but i did n't get Access token is there i doing anything wrong let me help to resolve this issue
You need to "Activate" an Integration to get an Access Token in the admin interface. After you create a new Integration and Save it, in the list of Integrations you should see an "activate" link. Clicking this you will be asked to approve the permissions, then you will get a screen with the tokens.
To get the tokens again later, "Edit" on that Integration (once it's Active) and you should see, in the "Integration Info" tab, the "Integration Details" section below. It will have the Consumer Key, Consumer Secret, and the now-populated Access Token and Access Secret.