# Secrets
The Secrets object is an object that stores the access tokens used to retrieve data and is set to the Map constructor option secrets.
Type Object (opens new window)
# Properties
# challenge (string (opens new window))
Access token for the Open Data Challenge for Public Transportation (opens new window) API hosted at api-challenge.odpt.org. It is appended as a consumer key to data source URLs on that host. If not specified, the default token will be used.
# odpt (string (opens new window))
Access token for the Public Transportation Open Data Center (opens new window) API hosted at api.odpt.org. It is appended as a consumer key to data source URLs on that host. If not specified, the default token will be used.