post https://api-sandbox.pismolabs.io/passport/v2/s2s/access-token
Generate an access token for use with basic authentication.
NOTE: Many of the endpoints in the Pismo API require you to provide an access token that you generated which includes a Pismo account ID (uid or account_id) or an external account ID from an external system used in place of the Pismo account ID (external_account_id). Further calls to Pismo endpoints will require an Authorization header. For more information, see Endpoints that require an account-specific token and Endpoints that require an external ID-specific token.