koa-sequelize-transaction
Automatically manages the CLS namespace for ssacl/sequelize allowing you to simply do:
var _ = koa = app = ; app;app; app;
koa-sequelize-transaction will ensure that any Sequelize calls in subsequent koa middleware will be scoped to the same transaction. commit/rollback will automatically be handled, you should handle any errors (on rollback) in your errorhandler and otherwise assume the transaction will succeed in your code (send a response).
Note if already using sequelize with CLS, it will automatically use that namespace instead of generating it's own.