Configuring The API Client

You can create an instance of the API client in one of two ways:

By providing your application's OAuth2 client_id and client_secret and following through the auth flow, which when complete will return an access token
Or if you already have a valid access token, you can instantiate the client directly using that token, however token refresh flows will not function without the application id and secret.

from freshbooks import Client

freshBooksClient = Client(
    client_id=<your application id>,
    client_secret=<your application secret>,
    redirect_uri=<your redirect uri>
)

and then proceed with the auth flow (see below).

Or

from freshbooks import Client

freshBooksClient = Client(
    client_id=<your application id>,
    access_token=<a valid token>
)