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medusa-store/docs/content/references/services/classes/DiscountService.md
github-actions[bot] beffa3de0e chore(docs): Generated Services Reference (automated) (#3934) 
Co-authored-by: olivermrbl <olivermrbl@users.noreply.github.com>
Co-authored-by: Shahed Nasser <shahednasser@gmail.com>
2023-04-26 20:57:01 +03:00

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# Class: DiscountService
Provides layer to manipulate discounts.
**`Implements`**
## Hierarchy
- `TransactionBaseService`
↳ **`DiscountService`**
## Constructors
### constructor
• **new DiscountService**(`__namedParameters`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `__namedParameters` | `Object` |
#### Overrides
TransactionBaseService.constructor
#### Defined in
[medusa/src/services/discount.ts:71](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L71)
## Properties
### \_\_configModule\_\_
• `Protected` `Optional` `Readonly` **\_\_configModule\_\_**: `Record`<`string`, `unknown`\>
#### Inherited from
TransactionBaseService.\_\_configModule\_\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:14](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L14)
___
### \_\_container\_\_
• `Protected` `Readonly` **\_\_container\_\_**: `any`
#### Inherited from
TransactionBaseService.\_\_container\_\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:13](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L13)
___
### \_\_moduleDeclaration\_\_
• `Protected` `Optional` `Readonly` **\_\_moduleDeclaration\_\_**: `Record`<`string`, `unknown`\>
#### Inherited from
TransactionBaseService.\_\_moduleDeclaration\_\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:15](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L15)
___
### customerService\_
• `Protected` `Readonly` **customerService\_**: [`CustomerService`](CustomerService.md)
#### Defined in
[medusa/src/services/discount.ts:58](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L58)
___
### discountConditionRepository\_
• `Protected` `Readonly` **discountConditionRepository\_**: `Repository`<`DiscountCondition`\> & { `addConditionResources`: (`conditionId`: `string`, `resourceIds`: (`string` \| { `id`: `string` })[], `type`: `DiscountConditionType`, `overrideExisting`: `boolean`) => `Promise`<(`DiscountConditionProduct` \| `DiscountConditionProductType` \| `DiscountConditionProductCollection` \| `DiscountConditionProductTag` \| `DiscountConditionCustomerGroup`)[]\> ; `canApplyForCustomer`: (`discountRuleId`: `string`, `customerId`: `string`) => `Promise`<`boolean`\> ; `findOneWithDiscount`: (`conditionId`: `string`, `discountId`: `string`) => `Promise`<`undefined` \| `DiscountCondition` & { `discount`: `Discount` }\> ; `getJoinTableResourceIdentifiers`: (`type`: `string`) => { `conditionTable`: `DiscountConditionResourceType` ; `joinTable`: `string` ; `joinTableForeignKey`: `DiscountConditionJoinTableForeignKey` ; `joinTableKey`: `string` ; `resourceKey`: `string` } ; `isValidForProduct`: (`discountRuleId`: `string`, `productId`: `string`) => `Promise`<`boolean`\> ; `queryConditionTable`: (`__namedParameters`: `Object`) => `Promise`<`number`\> ; `removeConditionResources`: (`id`: `string`, `type`: `DiscountConditionType`, `resourceIds`: (`string` \| { `id`: `string` })[]) => `Promise`<`void` \| `DeleteResult`\> }
#### Defined in
[medusa/src/services/discount.ts:62](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L62)
___
### discountConditionService\_
• `Protected` `Readonly` **discountConditionService\_**: [`DiscountConditionService`](DiscountConditionService.md)
#### Defined in
[medusa/src/services/discount.ts:63](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L63)
___
### discountRepository\_
• `Protected` `Readonly` **discountRepository\_**: `Repository`<`Discount`\>
#### Defined in
[medusa/src/services/discount.ts:57](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L57)
___
### discountRuleRepository\_
• `Protected` `Readonly` **discountRuleRepository\_**: `Repository`<`DiscountRule`\>
#### Defined in
[medusa/src/services/discount.ts:59](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L59)
___
### eventBus\_
• `Protected` `Readonly` **eventBus\_**: [`EventBusService`](EventBusService.md)
#### Defined in
[medusa/src/services/discount.ts:68](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L68)
___
### featureFlagRouter\_
• `Protected` `Readonly` **featureFlagRouter\_**: `FlagRouter`
#### Defined in
[medusa/src/services/discount.ts:69](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L69)
___
### giftCardRepository\_
• `Protected` `Readonly` **giftCardRepository\_**: `Repository`<`GiftCard`\> & { `listGiftCardsAndCount`: (`query`: `ExtendedFindConfig`<`GiftCard`\>, `q?`: `string`) => `Promise`<[`GiftCard`[], `number`]\> }
#### Defined in
[medusa/src/services/discount.ts:60](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L60)
___
### manager\_
• `Protected` **manager\_**: `EntityManager`
#### Inherited from
TransactionBaseService.manager\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:5](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L5)
___
### newTotalsService\_
• `Protected` `Readonly` **newTotalsService\_**: [`NewTotalsService`](NewTotalsService.md)
#### Defined in
[medusa/src/services/discount.ts:65](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L65)
___
### productService\_
• `Protected` `Readonly` **productService\_**: [`ProductService`](ProductService.md)
#### Defined in
[medusa/src/services/discount.ts:66](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L66)
___
### regionService\_
• `Protected` `Readonly` **regionService\_**: [`RegionService`](RegionService.md)
#### Defined in
[medusa/src/services/discount.ts:67](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L67)
___
### totalsService\_
• `Protected` `Readonly` **totalsService\_**: [`TotalsService`](TotalsService.md)
#### Defined in
[medusa/src/services/discount.ts:64](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L64)
___
### transactionManager\_
• `Protected` **transactionManager\_**: `undefined` \| `EntityManager`
#### Inherited from
TransactionBaseService.transactionManager\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:6](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L6)
## Accessors
### activeManager\_
• `Protected` `get` **activeManager_**(): `EntityManager`
#### Returns
`EntityManager`
#### Inherited from
TransactionBaseService.activeManager\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:8](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L8)
## Methods
### addRegion
▸ **addRegion**(`discountId`, `regionId`): `Promise`<`Discount`\>
Adds a region to the discount regions array.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountId` | `string` | id of discount |
| `regionId` | `string` | id of region to add |
#### Returns
`Promise`<`Discount`\>
the result of the update operation
#### Defined in
[medusa/src/services/discount.ts:503](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L503)
___
### atomicPhase\_
▸ `Protected` **atomicPhase_**<`TResult`, `TError`\>(`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
| Name |
| :------ |
| `TResult` |
| `TError` |
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `work` | (`transactionManager`: `EntityManager`) => `Promise`<`TResult`\> | the transactional work to be done |
| `isolationOrErrorHandler?` | `IsolationLevel` \| (`error`: `TError`) => `Promise`<`void` \| `TResult`\> | the isolation level to be used for the work. |
| `maybeErrorHandlerOrDontFail?` | (`error`: `TError`) => `Promise`<`void` \| `TResult`\> | Potential error handler |
#### Returns
`Promise`<`TResult`\>
the result of the transactional work
#### Inherited from
TransactionBaseService.atomicPhase\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:56](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L56)
___
### calculateDiscountForLineItem
▸ **calculateDiscountForLineItem**(`discountId`, `lineItem`, `calculationContextData`): `Promise`<`number`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `discountId` | `string` |
| `lineItem` | `LineItem` |
| `calculationContextData` | `CalculationContextData` |
#### Returns
`Promise`<`number`\>
#### Defined in
[medusa/src/services/discount.ts:605](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L605)
___
### canApplyForCustomer
▸ **canApplyForCustomer**(`discountRuleId`, `customerId`): `Promise`<`boolean`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `discountRuleId` | `string` |
| `customerId` | `undefined` \| `string` |
#### Returns
`Promise`<`boolean`\>
#### Defined in
[medusa/src/services/discount.ts:797](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L797)
___
### create
▸ **create**(`discount`): `Promise`<`Discount`\>
Creates a discount with provided data given that the data is validated.
Normalizes discount code to uppercase.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discount` | `CreateDiscountInput` | the discount data to create |
#### Returns
`Promise`<`Discount`\>
the result of the create operation
#### Defined in
[medusa/src/services/discount.ts:178](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L178)
___
### createDynamicCode
▸ **createDynamicCode**(`discountId`, `data`): `Promise`<`Discount`\>
Creates a dynamic code for a discount id.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountId` | `string` | the id of the discount to create a code for |
| `data` | `CreateDynamicDiscountInput` | the object containing a code to identify the discount by |
#### Returns
`Promise`<`Discount`\>
the newly created dynamic code
#### Defined in
[medusa/src/services/discount.ts:431](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L431)
___
### delete
▸ **delete**(`discountId`): `Promise`<`void`\>
Deletes a discount idempotently
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountId` | `string` | id of discount to delete |
#### Returns
`Promise`<`void`\>
the result of the delete operation
#### Defined in
[medusa/src/services/discount.ts:563](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L563)
___
### deleteDynamicCode
▸ **deleteDynamicCode**(`discountId`, `code`): `Promise`<`void`\>
Deletes a dynamic code for a discount id.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountId` | `string` | the id of the discount to create a code for |
| `code` | `string` | the code to identify the discount by |
#### Returns
`Promise`<`void`\>
the newly created dynamic code
#### Defined in
[medusa/src/services/discount.ts:482](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L482)
___
### hasCustomersGroupCondition
▸ **hasCustomersGroupCondition**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[medusa/src/services/discount.ts:750](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L750)
___
### hasExpired
▸ **hasExpired**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[medusa/src/services/discount.ts:766](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L766)
___
### hasNotStarted
▸ **hasNotStarted**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[medusa/src/services/discount.ts:762](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L762)
___
### hasReachedLimit
▸ **hasReachedLimit**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[medusa/src/services/discount.ts:756](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L756)
___
### isDisabled
▸ **isDisabled**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[medusa/src/services/discount.ts:774](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L774)
___
### isValidForRegion
▸ **isValidForRegion**(`discount`, `region_id`): `Promise`<`boolean`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
| `region_id` | `string` |
#### Returns
`Promise`<`boolean`\>
#### Defined in
[medusa/src/services/discount.ts:778](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L778)
___
### list
▸ **list**(`selector?`, `config?`): `Promise`<`Discount`[]\>
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `selector` | `FilterableDiscountProps` | the query object for find |
| `config` | `FindConfig`<`Discount`\> | the config object containing query settings |
#### Returns
`Promise`<`Discount`[]\>
the result of the find operation
#### Defined in
[medusa/src/services/discount.ts:125](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L125)
___
### listAndCount
▸ **listAndCount**(`selector?`, `config?`): `Promise`<[`Discount`[], `number`]\>
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `selector` | `FilterableDiscountProps` | the query object for find |
| `config` | `FindConfig`<`Discount`\> | the config object containing query settings |
#### Returns
`Promise`<[`Discount`[], `number`]\>
the result of the find operation
#### Defined in
[medusa/src/services/discount.ts:142](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L142)
___
### listByCodes
▸ **listByCodes**(`discountCodes`, `config?`): `Promise`<`Discount`[]\>
List all the discounts corresponding to the given codes
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountCodes` | `string`[] | discount codes of discounts to retrieve |
| `config` | `FindConfig`<`Discount`\> | the config object containing query settings |
#### Returns
`Promise`<`Discount`[]\>
the discounts
#### Defined in
[medusa/src/services/discount.ts:307](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L307)
___
### removeRegion
▸ **removeRegion**(`discountId`, `regionId`): `Promise`<`Discount`\>
Removes a region from the discount regions array.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountId` | `string` | id of discount |
| `regionId` | `string` | id of region to remove |
#### Returns
`Promise`<`Discount`\>
the result of the update operation
#### Defined in
[medusa/src/services/discount.ts:538](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L538)
___
### retrieve
▸ **retrieve**(`discountId`, `config?`): `Promise`<`Discount`\>
Gets a discount by id.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountId` | `string` | id of discount to retrieve |
| `config` | `FindConfig`<`Discount`\> | the config object containing query settings |
#### Returns
`Promise`<`Discount`\>
the discount
#### Defined in
[medusa/src/services/discount.ts:244](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L244)
___
### retrieveByCode
▸ **retrieveByCode**(`discountCode`, `config?`): `Promise`<`Discount`\>
Gets the discount by discount code.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountCode` | `string` | discount code of discount to retrieve |
| `config` | `FindConfig`<`Discount`\> | the config object containing query settings |
#### Returns
`Promise`<`Discount`\>
the discount
#### Defined in
[medusa/src/services/discount.ts:278](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L278)
___
### shouldRetryTransaction\_
▸ `Protected` **shouldRetryTransaction_**(`err`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `err` | `Record`<`string`, `unknown`\> \| { `code`: `string` } |
#### Returns
`boolean`
#### Inherited from
TransactionBaseService.shouldRetryTransaction\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:37](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L37)
___
### update
▸ **update**(`discountId`, `update`): `Promise`<`Discount`\>
Updates a discount.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountId` | `string` | discount id of discount to update |
| `update` | `UpdateDiscountInput` | the data to update the discount with |
#### Returns
`Promise`<`Discount`\>
the result of the update operation
#### Defined in
[medusa/src/services/discount.ts:338](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L338)
___
### validateDiscountForCartOrThrow
▸ **validateDiscountForCartOrThrow**(`cart`, `discount`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `cart` | `Cart` |
| `discount` | `Discount` \| `Discount`[] |
#### Returns
`Promise`<`void`\>
#### Defined in
[medusa/src/services/discount.ts:678](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L678)
___
### validateDiscountForProduct
▸ **validateDiscountForProduct**(`discountRuleId`, `productId`): `Promise`<`boolean`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `discountRuleId` | `string` |
| `productId` | `undefined` \| `string` |
#### Returns
`Promise`<`boolean`\>
#### Defined in
[medusa/src/services/discount.ts:577](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L577)
___
### validateDiscountRule\_
▸ **validateDiscountRule_**<`T`\>(`discountRule`): `T`
Creates a discount rule with provided data given that the data is validated.
#### Type parameters
| Name | Type |
| :------ | :------ |
| `T` | extends `Object` |
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `discountRule` | `T` | the discount rule to create |
#### Returns
`T`
the result of the create operation
#### Defined in
[medusa/src/services/discount.ts:107](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/services/discount.ts#L107)
___
### withTransaction
▸ **withTransaction**(`transactionManager?`): [`DiscountService`](DiscountService.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `transactionManager?` | `EntityManager` |
#### Returns
[`DiscountService`](DiscountService.md)
#### Inherited from
TransactionBaseService.withTransaction
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:20](https://github.com/medusajs/medusa/blob/b41b6303c/packages/medusa/src/interfaces/transaction-base-service.ts#L20)
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