---
displayed_sidebar: servicesSidebar
---

import ParameterTypes from "@site/src/components/ParameterTypes"

# LineItemAdjustmentService

Provides layer to manipulate line item adjustments.

## constructor

### Parameters

<ParameterTypes parameters={[{"name":"__namedParameters","type":"`LineItemAdjustmentServiceProps`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="new LineItemAdjustmentService"/>

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## Properties

<ParameterTypes parameters={[{"name":"manager_","type":"`EntityManager`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"transactionManager_","type":"`undefined` \\| `EntityManager`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"__container__","type":"`any`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"lineItemAdjustmentRepo_","type":"Repository&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)&#62;","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"discountService","type":"[DiscountService](services.DiscountService.mdx)","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"__configModule__","type":"`Record<string, unknown>`","description":"","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"__moduleDeclaration__","type":"`Record<string, unknown>`","description":"","optional":true,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="LineItemAdjustmentService"/>

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## Accessors

### activeManager\_

#### Returns

<ParameterTypes parameters={[{"name":"EntityManager","type":"`EntityManager`","optional":false,"defaultValue":"","description":"","expandable":false,"children":[]}]}  sectionTitle="activeManager_"/>

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## Methods

### withTransaction

#### Parameters

<ParameterTypes parameters={[{"name":"transactionManager","type":"`EntityManager`","description":"","optional":true,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="withTransaction"/>

#### Returns

<ParameterTypes parameters={[{"name":"this","type":"`this`","optional":false,"defaultValue":"","description":"","expandable":false,"children":[]}]}  sectionTitle="withTransaction"/>

### shouldRetryTransaction\_

#### Parameters

<ParameterTypes parameters={[{"name":"err","type":"`Record<string, unknown>` \\| `object`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="shouldRetryTransaction_"/>

#### Returns

<ParameterTypes parameters={[{"name":"boolean","type":"`boolean`","optional":false,"defaultValue":"","description":"","expandable":false,"children":[]}]}  sectionTitle="shouldRetryTransaction_"/>

### atomicPhase\_

Wraps some work within a transactional block. If the service already has
a transaction manager attached this will be reused, otherwise a new
transaction manager is created.

#### Type Parameters

<ParameterTypes parameters={[{"name":"TResult","type":"`object`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"TError","type":"`object`","description":"","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="atomicPhase_"/>

#### Parameters

<ParameterTypes parameters={[{"name":"work","type":"(`transactionManager`: `EntityManager`) => Promise&#60;TResult&#62;","description":"the transactional work to be done","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"isolationOrErrorHandler","type":"`IsolationLevel` \\| (`error`: TError) => Promise&#60;void \\| TResult&#62;","description":"the isolation level to be used for the work.","optional":true,"defaultValue":"","expandable":false,"children":[]},{"name":"maybeErrorHandlerOrDontFail","type":"(`error`: TError) => Promise&#60;void \\| TResult&#62;","description":"Potential error handler","optional":true,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="atomicPhase_"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;TResult&#62;","optional":false,"defaultValue":"","description":"the result of the transactional work","expandable":false,"children":[]}]}  sectionTitle="atomicPhase_"/>

### retrieve

Retrieves a line item adjustment by id.

#### Parameters

<ParameterTypes parameters={[{"name":"lineItemAdjustmentId","type":"`string`","description":"the id of the line item adjustment to retrieve","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"config","type":"[FindConfig](../../medusa/interfaces/medusa.FindConfig.mdx)&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)&#62;","description":"the config to retrieve the line item adjustment by","optional":false,"defaultValue":"{}","expandable":false,"children":[]}]}  sectionTitle="retrieve"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)&#62;","optional":false,"defaultValue":"","description":"the line item adjustment.","expandable":false,"children":[]}]}  sectionTitle="retrieve"/>

### create

Creates a line item adjustment

#### Parameters

<ParameterTypes parameters={[{"name":"data","type":"Partial&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)&#62;","description":"the line item adjustment to create","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="create"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)&#62;","optional":false,"defaultValue":"","description":"line item adjustment","expandable":false,"children":[]}]}  sectionTitle="create"/>

### update

Creates a line item adjustment

#### Parameters

<ParameterTypes parameters={[{"name":"id","type":"`string`","description":"the line item adjustment id to update","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"data","type":"Partial&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)&#62;","description":"the line item adjustment to create","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="update"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)&#62;","optional":false,"defaultValue":"","description":"line item adjustment","expandable":false,"children":[]}]}  sectionTitle="update"/>

### list

Lists line item adjustments

#### Parameters

<ParameterTypes parameters={[{"name":"selector","type":"`FilterableLineItemAdjustmentProps`","description":"the query object for find","optional":false,"defaultValue":"{}","expandable":false,"children":[]},{"name":"config","type":"[FindConfig](../../medusa/interfaces/medusa.FindConfig.mdx)&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)&#62;","description":"the config to be used for find","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="list"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)[]&#62;","optional":false,"defaultValue":"","description":"the result of the find operation","expandable":false,"children":[]}]}  sectionTitle="list"/>

### delete

Deletes line item adjustments matching a selector

#### Parameters

<ParameterTypes parameters={[{"name":"selectorOrIds","type":"`string` \\| `string`[] \\| `FilterableLineItemAdjustmentProps` & `object`","description":"the query object for find or the line item adjustment id","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="delete"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;void&#62;","optional":false,"defaultValue":"","description":"the result of the delete operation","expandable":false,"children":[]}]}  sectionTitle="delete"/>

### generateAdjustments

Creates adjustment for a line item

#### Parameters

<ParameterTypes parameters={[{"name":"calculationContextData","type":"`CalculationContextData`","description":"the calculationContextData object holding discounts","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"generatedLineItem","type":"[LineItem](../../entities/classes/entities.LineItem.mdx)","description":"the line item for which a line item adjustment might be created","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"context","type":"`AdjustmentContext`","description":"the line item for which a line item adjustment might be created","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="generateAdjustments"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;GeneratedAdjustment[]&#62;","optional":false,"defaultValue":"","description":"a line item adjustment or undefined if no adjustment was created","expandable":false,"children":[]}]}  sectionTitle="generateAdjustments"/>

### createAdjustmentForLineItem

Creates adjustment for a line item

#### Parameters

<ParameterTypes parameters={[{"name":"cart","type":"[Cart](../../entities/classes/entities.Cart.mdx)","description":"the cart object holding discounts","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"lineItem","type":"[LineItem](../../entities/classes/entities.LineItem.mdx)","description":"the line item for which a line item adjustment might be created","optional":false,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="createAdjustmentForLineItem"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)[]&#62;","optional":false,"defaultValue":"","description":"a line item adjustment or undefined if no adjustment was created","expandable":false,"children":[]}]}  sectionTitle="createAdjustmentForLineItem"/>

### createAdjustments

Creates adjustment for a line item

#### Parameters

<ParameterTypes parameters={[{"name":"cart","type":"[Cart](../../entities/classes/entities.Cart.mdx)","description":"the cart object holding discounts","optional":false,"defaultValue":"","expandable":false,"children":[]},{"name":"lineItem","type":"[LineItem](../../entities/classes/entities.LineItem.mdx)","description":"the line item for which a line item adjustment might be created","optional":true,"defaultValue":"","expandable":false,"children":[]}]}  sectionTitle="createAdjustments"/>

#### Returns

<ParameterTypes parameters={[{"name":"Promise","type":"Promise&#60;[LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)[] \\| [LineItemAdjustment](../../entities/classes/entities.LineItemAdjustment.mdx)[][]&#62;","optional":false,"defaultValue":"","description":"if a lineItem was given, returns a line item adjustment or undefined if no adjustment was created\notherwise returns an array of line item adjustments for each line item in the cart","expandable":false,"children":[]}]}  sectionTitle="createAdjustments"/>
