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medusa-store/docs/content/references/services/classes/DiscountService.md
github-actions[bot] 23bf4eb192 chore(docs): Generated Services Reference (automated) (#2399) 
Co-authored-by: olivermrbl <olivermrbl@users.noreply.github.com>
2022-10-10 19:31:16 +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
[packages/medusa/src/services/discount.ts:66](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L66)
## Properties
### \_\_configModule\_\_
• `Protected` `Optional` `Readonly` **\_\_configModule\_\_**: `Record`<`string`, `unknown`\>
#### Inherited from
TransactionBaseService.\_\_configModule\_\_
#### Defined in
[packages/medusa/src/interfaces/transaction-base-service.ts:10](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/interfaces/transaction-base-service.ts#L10)
___
### \_\_container\_\_
• `Protected` `Readonly` **\_\_container\_\_**: `any`
#### Inherited from
TransactionBaseService.\_\_container\_\_
#### Defined in
[packages/medusa/src/interfaces/transaction-base-service.ts:9](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/interfaces/transaction-base-service.ts#L9)
___
### customerService\_
• `Protected` `Readonly` **customerService\_**: [`CustomerService`](CustomerService.md)
#### Defined in
[packages/medusa/src/services/discount.ts:54](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L54)
___
### discountConditionRepository\_
• `Protected` `Readonly` **discountConditionRepository\_**: typeof `DiscountConditionRepository`
#### Defined in
[packages/medusa/src/services/discount.ts:58](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L58)
___
### discountConditionService\_
• `Protected` `Readonly` **discountConditionService\_**: `DiscountConditionService`
#### Defined in
[packages/medusa/src/services/discount.ts:59](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L59)
___
### discountRepository\_
• `Protected` `Readonly` **discountRepository\_**: typeof `DiscountRepository`
#### Defined in
[packages/medusa/src/services/discount.ts:53](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L53)
___
### discountRuleRepository\_
• `Protected` `Readonly` **discountRuleRepository\_**: typeof `DiscountRuleRepository`
#### Defined in
[packages/medusa/src/services/discount.ts:55](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L55)
___
### eventBus\_
• `Protected` `Readonly` **eventBus\_**: [`EventBusService`](EventBusService.md)
#### Defined in
[packages/medusa/src/services/discount.ts:63](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L63)
___
### featureFlagRouter\_
• `Protected` `Readonly` **featureFlagRouter\_**: `FlagRouter`
#### Defined in
[packages/medusa/src/services/discount.ts:64](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L64)
___
### giftCardRepository\_
• `Protected` `Readonly` **giftCardRepository\_**: typeof `GiftCardRepository`
#### Defined in
[packages/medusa/src/services/discount.ts:56](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L56)
___
### manager\_
• `Protected` **manager\_**: `EntityManager`
#### Overrides
TransactionBaseService.manager\_
#### Defined in
[packages/medusa/src/services/discount.ts:50](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L50)
___
### productService\_
• `Protected` `Readonly` **productService\_**: [`ProductService`](ProductService.md)
#### Defined in
[packages/medusa/src/services/discount.ts:61](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L61)
___
### regionService\_
• `Protected` `Readonly` **regionService\_**: [`RegionService`](RegionService.md)
#### Defined in
[packages/medusa/src/services/discount.ts:62](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L62)
___
### totalsService\_
• `Protected` `Readonly` **totalsService\_**: [`TotalsService`](TotalsService.md)
#### Defined in
[packages/medusa/src/services/discount.ts:60](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L60)
___
### transactionManager\_
• `Protected` **transactionManager\_**: `undefined` \| `EntityManager`
#### Overrides
TransactionBaseService.transactionManager\_
#### Defined in
[packages/medusa/src/services/discount.ts:51](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L51)
## 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
[packages/medusa/src/services/discount.ts:473](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L473)
___
### 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
[packages/medusa/src/interfaces/transaction-base-service.ts:50](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/interfaces/transaction-base-service.ts#L50)
___
### calculateDiscountForLineItem
▸ **calculateDiscountForLineItem**(`discountId`, `lineItem`, `cart`): `Promise`<`number`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `discountId` | `string` |
| `lineItem` | `LineItem` |
| `cart` | `Cart` |
#### Returns
`Promise`<`number`\>
#### Defined in
[packages/medusa/src/services/discount.ts:574](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L574)
___
### canApplyForCustomer
▸ **canApplyForCustomer**(`discountRuleId`, `customerId`): `Promise`<`boolean`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `discountRuleId` | `string` |
| `customerId` | `undefined` \| `string` |
#### Returns
`Promise`<`boolean`\>
#### Defined in
[packages/medusa/src/services/discount.ts:733](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L733)
___
### 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
[packages/medusa/src/services/discount.ts:182](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L182)
___
### 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
[packages/medusa/src/services/discount.ts:401](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L401)
___
### 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
[packages/medusa/src/services/discount.ts:533](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L533)
___
### 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
[packages/medusa/src/services/discount.ts:452](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L452)
___
### hasExpired
▸ **hasExpired**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[packages/medusa/src/services/discount.ts:702](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L702)
___
### hasNotStarted
▸ **hasNotStarted**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[packages/medusa/src/services/discount.ts:698](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L698)
___
### hasReachedLimit
▸ **hasReachedLimit**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[packages/medusa/src/services/discount.ts:692](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L692)
___
### isDisabled
▸ **isDisabled**(`discount`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
#### Returns
`boolean`
#### Defined in
[packages/medusa/src/services/discount.ts:710](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L710)
___
### isValidForRegion
▸ **isValidForRegion**(`discount`, `region_id`): `Promise`<`boolean`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `discount` | `Discount` |
| `region_id` | `string` |
#### Returns
`Promise`<`boolean`\>
#### Defined in
[packages/medusa/src/services/discount.ts:714](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L714)
___
### 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
[packages/medusa/src/services/discount.ts:120](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L120)
___
### 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
[packages/medusa/src/services/discount.ts:136](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L136)
___
### 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
[packages/medusa/src/services/discount.ts:508](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L508)
___
### 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
[packages/medusa/src/services/discount.ts:245](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L245)
___
### retrieveByCode
▸ **retrieveByCode**(`discountCode`, `config?`): `Promise`<`Discount`\>
Gets a 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 document
#### Defined in
[packages/medusa/src/services/discount.ts:271](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L271)
___
### shouldRetryTransaction\_
▸ `Protected` **shouldRetryTransaction_**(`err`): `boolean`
#### Parameters
| Name | Type |
| :------ | :------ |
| `err` | `Record`<`string`, `unknown`\> \| { `code`: `string` } |
#### Returns
`boolean`
#### Inherited from
TransactionBaseService.shouldRetryTransaction\_
#### Defined in
[packages/medusa/src/interfaces/transaction-base-service.ts:31](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/interfaces/transaction-base-service.ts#L31)
___
### 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
[packages/medusa/src/services/discount.ts:304](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L304)
___
### validateDiscountForCartOrThrow
▸ **validateDiscountForCartOrThrow**(`cart`, `discount`): `Promise`<`void`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `cart` | `Cart` |
| `discount` | `Discount` |
#### Returns
`Promise`<`void`\>
#### Defined in
[packages/medusa/src/services/discount.ts:632](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L632)
___
### validateDiscountForProduct
▸ **validateDiscountForProduct**(`discountRuleId`, `productId`): `Promise`<`boolean`\>
#### Parameters
| Name | Type |
| :------ | :------ |
| `discountRuleId` | `string` |
| `productId` | `undefined` \| `string` |
#### Returns
`Promise`<`boolean`\>
#### Defined in
[packages/medusa/src/services/discount.ts:547](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L547)
___
### 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
[packages/medusa/src/services/discount.ts:102](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/services/discount.ts#L102)
___
### withTransaction
▸ **withTransaction**(`transactionManager?`): [`DiscountService`](DiscountService.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `transactionManager?` | `EntityManager` |
#### Returns
[`DiscountService`](DiscountService.md)
#### Inherited from
TransactionBaseService.withTransaction
#### Defined in
[packages/medusa/src/interfaces/transaction-base-service.ts:13](https://github.com/medusajs/medusa/blob/35df4962f/packages/medusa/src/interfaces/transaction-base-service.ts#L13)
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