The Meteor object provided by the framework has a property named
settings which is populated from the file
settings.json, specified on the command-line when the server is started. There are two main sub-keys:
private: server-only namespace
public: key-space published to the client
It’s worth noting that the settings may be modified at run-time, during server bootstrap. Most notably, those modifications affecting the
public key-space will be pushed to the client, allowing to compute properties at run-time.
One plausible use-case is the forwarding of environment variables from the server to the client.