---
displayed_sidebar: authReference
---

import { TypeList } from "docs-ui"

# Context

A context used to share resources, such as transaction manager, between the application and the module.

## Type parameters

<TypeList types={[{"name":"TManager","type":"`object`","description":"","optional":true,"defaultValue":"","expandable":false,"children":[]}]} expandUrl="https://docs.medusajs.com/learn/fundamentals/data-models/manage-relationships#retrieve-records-of-relation" sectionTitle="Context"/>

<TypeList types={[{"name":"__type","type":"`\"MedusaContext\"`","description":"","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"transactionManager","type":"TManager","description":"An instance of a transaction manager of type `TManager`, which is a typed parameter passed to the context to specify the type of the `transactionManager`.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"manager","type":"TManager","description":"An instance of a manager, typically an entity manager, of type `TManager`, which is a typed parameter passed to the context to specify the type of the `manager`.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"isolationLevel","type":"`string`","description":"A string indicating the isolation level of the context. Possible values are `READ UNCOMMITTED`, `READ COMMITTED`, `REPEATABLE READ`, or `SERIALIZABLE`.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"enableNestedTransactions","type":"`boolean`","description":"A boolean value indicating whether nested transactions are enabled.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"eventGroupId","type":"`string`","description":"A string indicating the ID of the group to aggregate the events to be emitted at a later point.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"transactionId","type":"`string`","description":"A string indicating the ID of the current transaction.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"messageAggregator","type":"[IMessageAggregator](../auth.IMessageAggregator/page.mdx)","description":"An instance of a message aggregator, which is used to aggregate messages to be emitted at a later point.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"requestId","type":"`string`","description":"A string indicating the ID of the current request.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"idempotencyKey","type":"`string`","description":"A string indicating the idempotencyKey of the current workflow execution.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"parentStepIdempotencyKey","type":"`string`","description":"A string indicating the idempotencyKey of the parent workflow execution.","optional":true,"defaultValue":"","expandable":false,"children":[]}]} expandUrl="https://docs.medusajs.com/learn/fundamentals/data-models/manage-relationships#retrieve-records-of-relation" sectionTitle="Context"/>