Tracing Flask application can be done in two methods:

1. Auto-tracing using the environment variable.
2. Calling the SDK.

Calling the SDK is simple, and should be done in your main py file where the application is being initialized:

import epsagon
epsagon.init(
    token='<epsagon-token>',
    app_name='<app-name-stage>',
    metadata_only=False,
)