Unable to call rails g devise_token_auth:install within rails engine

[djsegal]

getting this error when I run it within my api engine:

.../activerecord/lib/active_record/connection_adapters/abstract/connection_pool.rb:878:in `retrieve_connection': No connection pool for ActiveRecord::Base (ActiveRecord::ConnectionNotEstablished)
  from .../activerecord/lib/active_record/connection_handling.rb:113:in `retrieve_connection'
  from .../activerecord/lib/active_record/connection_handling.rb:87:in `connection'
  from /devise_token_auth/lib/generators/devise_token_auth/install_generator.rb:154:in `database_name'
  from /devise_token_auth/lib/generators/devise_token_auth/install_generator.rb:136:in `postgres?'
  from /devise_token_auth/lib/generators/devise_token_auth/install_generator.rb:132:in `json_supported_database?'
  from (erb):43:in `migration_template'

• i believe this is because the base directory doesn't have a config/database.yml file (because it is actually kept at ./spec/dummy/config/database.yml).
• i tried monkey around with it to get it to work, but I eventually gave up and just made json_supported_database? always return true

[shifakhan]

@djsegal Were you able to get devise_token_auth running in the engine ?

[djsegal]

Have long since refactored my own code and genuinely have no clue what this is about