---
displayed_sidebar: servicesSidebar
---
import ParameterTypes from "@site/src/components/ParameterTypes"
# DiscountService
Provides layer to manipulate discounts.
#### Implements
## Constructors
#### constructor
`**new DiscountService**(«destructured»)`
##### Parameters
## Properties
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{
"name": "discountConditionRepository_",
"type": "Repository<[DiscountCondition](DiscountCondition.mdx)> & ``{ addConditionResources: Method addConditionResources ; canApplyForCustomer: Method canApplyForCustomer ; findOneWithDiscount: Method findOneWithDiscount ; getJoinTableResourceIdentifiers: Method getJoinTableResourceIdentifiers ; isValidForProduct: Method isValidForProduct ; queryConditionTable: Method queryConditionTable ; removeConditionResources: Method removeConditionResources }``",
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{
"name": "discountConditionService_",
"type": "[DiscountConditionService](DiscountConditionService.mdx)",
"description": "",
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{
"name": "discountRepository_",
"type": "Repository<[Discount](Discount.mdx)>",
"description": "",
"optional": false,
"defaultValue": "",
"expandable": false,
"children": []
},
{
"name": "discountRuleRepository_",
"type": "Repository<[DiscountRule](DiscountRule.mdx)>",
"description": "",
"optional": false,
"defaultValue": "",
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{
"name": "giftCardRepository_",
"type": "Repository<[GiftCard](GiftCard.mdx)> & ``{ listGiftCardsAndCount: Method listGiftCardsAndCount }``",
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{
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"type": "EntityManager",
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{
"name": "newTotalsService_",
"type": "[NewTotalsService](NewTotalsService.mdx)",
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{
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"type": "[TotalsService](TotalsService.mdx)",
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{
"name": "transactionManager_",
"type": "`undefined` \\| EntityManager",
"description": "",
"optional": false,
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]} />
## Accessors
#### activeManager\_
`Protected` **activeManager\_**: [object Object]
## Methods
#### addRegion
`**addRegion**(discountId, regionId): Promise<[Discount](Discount.mdx)>`
Adds a region to the discount regions array.
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)>
___
#### atomicPhase\_
`Protected **atomicPhase_**(work, isolationOrErrorHandler?, maybeErrorHandlerOrDontFail?): Promise<TResult>`
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
##### Parameters
Promise<TResult>",
"description": "the transactional work to be done",
"optional": false,
"defaultValue": "",
"expandable": false,
"children": []
},
{
"name": "isolationOrErrorHandler",
"type": "`IsolationLevel` \\| (`error`: `TError`) => Promise<void \\| TResult>",
"description": "the isolation level to be used for the work.",
"optional": true,
"defaultValue": "",
"expandable": false,
"children": []
},
{
"name": "maybeErrorHandlerOrDontFail",
"type": "(`error`: `TError`) => Promise<void \\| TResult>",
"description": "Potential error handler",
"optional": true,
"defaultValue": "",
"expandable": false,
"children": []
}
]} />
##### Returns
Promise<TResult>
___
#### calculateDiscountForLineItem
`**calculateDiscountForLineItem**(discountId, lineItem, calculationContextData): Promise<number>`
##### Parameters
##### Returns
Promise<number>
___
#### canApplyForCustomer
`**canApplyForCustomer**(discountRuleId, customerId): Promise<boolean>`
##### Parameters
##### Returns
Promise<boolean>
___
#### create
`**create**(discount): Promise<[Discount](Discount.mdx)>`
Creates a discount with provided data given that the data is validated.
Normalizes discount code to uppercase.
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)>
___
#### createDynamicCode
`**createDynamicCode**(discountId, data): Promise<[Discount](Discount.mdx)>`
Creates a dynamic code for a discount id.
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)>
___
#### delete
`**delete**(discountId): Promise<void>`
Deletes a discount idempotently
##### Parameters
##### Returns
Promise<void>
___
#### deleteDynamicCode
`**deleteDynamicCode**(discountId, code): Promise<void>`
Deletes a dynamic code for a discount id.
##### Parameters
##### Returns
Promise<void>
___
#### hasCustomersGroupCondition
`**hasCustomersGroupCondition**(discount): boolean`
##### Parameters
##### Returns
`boolean`
___
#### hasExpired
`**hasExpired**(discount): boolean`
##### Parameters
##### Returns
`boolean`
___
#### hasNotStarted
`**hasNotStarted**(discount): boolean`
##### Parameters
##### Returns
`boolean`
___
#### hasReachedLimit
`**hasReachedLimit**(discount): boolean`
##### Parameters
##### Returns
`boolean`
___
#### isDisabled
`**isDisabled**(discount): boolean`
##### Parameters
##### Returns
`boolean`
___
#### isValidForRegion
`**isValidForRegion**(discount, region_id): Promise<boolean>`
##### Parameters
##### Returns
Promise<boolean>
___
#### list
`**list**(selector?, config?): Promise<[Discount](Discount.mdx)[]>`
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)[]>
___
#### listAndCount
`**listAndCount**(selector?, config?): Promise<[[Discount](Discount.mdx)[], number]>`
##### Parameters
##### Returns
Promise<[[Discount](Discount.mdx)[], number]>
___
#### listByCodes
`**listByCodes**(discountCodes, config?): Promise<[Discount](Discount.mdx)[]>`
List all the discounts corresponding to the given codes
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)[]>
___
#### removeRegion
`**removeRegion**(discountId, regionId): Promise<[Discount](Discount.mdx)>`
Removes a region from the discount regions array.
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)>
___
#### retrieve
`**retrieve**(discountId, config?): Promise<[Discount](Discount.mdx)>`
Gets a discount by id.
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)>
___
#### retrieveByCode
`**retrieveByCode**(discountCode, config?): Promise<[Discount](Discount.mdx)>`
Gets the discount by discount code.
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)>
___
#### shouldRetryTransaction\_
`Protected **shouldRetryTransaction_**(err): boolean`
##### Parameters
` \\| ``{ code: string }``",
"description": "",
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]} />
##### Returns
`boolean`
___
#### update
`**update**(discountId, update): Promise<[Discount](Discount.mdx)>`
Updates a discount.
##### Parameters
##### Returns
Promise<[Discount](Discount.mdx)>
___
#### validateDiscountForCartOrThrow
`**validateDiscountForCartOrThrow**(cart, discount): Promise<void>`
##### Parameters
##### Returns
Promise<void>
___
#### validateDiscountForProduct
`**validateDiscountForProduct**(discountRuleId, productId?): Promise<boolean>`
##### Parameters
##### Returns
Promise<boolean>
___
#### validateDiscountRule\_
`**validateDiscountRule_**(discountRule): T`
Creates a discount rule with provided data given that the data is validated.
##### Type Parameters
##### Parameters
##### Returns
`T`
___
#### withTransaction
`**withTransaction**(transactionManager?): [DiscountService](DiscountService.mdx)`
##### Parameters
##### Returns
[DiscountService](DiscountService.mdx)