What components are essential for token-based authentication?

Token-based authentication primarily relies on the use of a Consumer Key and Consumer Secret, which are essential components in establishing a connection between the client application and the NetSuite API. These credentials ensure that the request is being made by an authenticated application and are used to generate tokens that allow for secure, authenticated calls to the API.

The Consumer Key serves as a unique identifier for the application, while the Consumer Secret acts as a password that helps protect the key from unauthorized access. Together, these two pieces of data are crucial for setting up an initial authenticated session and obtaining access tokens that are necessary for token-based authentication workflows.

Other options like Access Tokens and Refresh Tokens pertain to the token lifecycle rather than the initial authentication setup. API Keys and Client Secrets, along with User IDs and Passwords, may also be used in certain authentication mechanisms, but they do not encompass the specific requirements for token-based authentication outlined in the question.