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medusa-store/docs/content/references/services/classes/IdempotencyKeyService.md
2023-05-16 12:08:36 +02:00

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# Class: IdempotencyKeyService
## Hierarchy
- `TransactionBaseService`
**`IdempotencyKeyService`**
## Constructors
### constructor
**new IdempotencyKeyService**(`__namedParameters`)
#### Parameters
| Name | Type |
| :------ | :------ |
| `__namedParameters` | `InjectedDependencies` |
#### Overrides
TransactionBaseService.constructor
#### Defined in
[medusa/src/services/idempotency-key.ts:25](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/services/idempotency-key.ts#L25)
## 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/5a42c1152/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/5a42c1152/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/5a42c1152/packages/medusa/src/interfaces/transaction-base-service.ts#L15)
___
### idempotencyKeyRepository\_
`Protected` `Readonly` **idempotencyKeyRepository\_**: `Repository`<`IdempotencyKey`\>
#### Defined in
[medusa/src/services/idempotency-key.ts:23](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/services/idempotency-key.ts#L23)
___
### manager\_
`Protected` **manager\_**: `EntityManager`
#### Inherited from
TransactionBaseService.manager\_
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:5](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/interfaces/transaction-base-service.ts#L5)
___
### 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/5a42c1152/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/5a42c1152/packages/medusa/src/interfaces/transaction-base-service.ts#L8)
## Methods
### 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/5a42c1152/packages/medusa/src/interfaces/transaction-base-service.ts#L56)
___
### create
**create**(`payload`): `Promise`<`IdempotencyKey`\>
Creates an idempotency key for a request.
If no idempotency key is provided in request, we will create a unique
identifier.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `payload` | `CreateIdempotencyKeyInput` | payload of request to create idempotency key for |
#### Returns
`Promise`<`IdempotencyKey`\>
the created idempotency key
#### Defined in
[medusa/src/services/idempotency-key.ts:68](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/services/idempotency-key.ts#L68)
___
### initializeRequest
**initializeRequest**(`headerKey`, `reqMethod`, `reqParams`, `reqPath`): `Promise`<`IdempotencyKey`\>
Execute the initial steps in a idempotent request.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `headerKey` | `string` | potential idempotency key from header |
| `reqMethod` | `string` | method of request |
| `reqParams` | `Record`<`string`, `unknown`\> | params of request |
| `reqPath` | `string` | path of request |
#### Returns
`Promise`<`IdempotencyKey`\>
the existing or created idempotency key
#### Defined in
[medusa/src/services/idempotency-key.ts:40](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/services/idempotency-key.ts#L40)
___
### lock
**lock**(`idempotencyKey`): `Promise`<`IdempotencyKey`\>
Locks an idempotency.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `idempotencyKey` | `string` | key to lock |
#### Returns
`Promise`<`IdempotencyKey`\>
result of the update operation
#### Defined in
[medusa/src/services/idempotency-key.ts:138](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/services/idempotency-key.ts#L138)
___
### retrieve
**retrieve**(`idempotencyKeyOrSelector`): `Promise`<`IdempotencyKey`\>
Retrieves an idempotency key
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `idempotencyKeyOrSelector` | `string` \| `Selector`<`IdempotencyKey`\> | key or selector to retrieve |
#### Returns
`Promise`<`IdempotencyKey`\>
idempotency key
#### Defined in
[medusa/src/services/idempotency-key.ts:86](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/services/idempotency-key.ts#L86)
___
### 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/5a42c1152/packages/medusa/src/interfaces/transaction-base-service.ts#L37)
___
### update
**update**(`idempotencyKey`, `update`): `Promise`<`IdempotencyKey`\>
Locks an idempotency.
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `idempotencyKey` | `string` | key to update |
| `update` | `DeepPartial`<`IdempotencyKey`\> | update object |
#### Returns
`Promise`<`IdempotencyKey`\>
result of the update operation
#### Defined in
[medusa/src/services/idempotency-key.ts:167](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/services/idempotency-key.ts#L167)
___
### withTransaction
**withTransaction**(`transactionManager?`): [`IdempotencyKeyService`](IdempotencyKeyService.md)
#### Parameters
| Name | Type |
| :------ | :------ |
| `transactionManager?` | `EntityManager` |
#### Returns
[`IdempotencyKeyService`](IdempotencyKeyService.md)
#### Inherited from
TransactionBaseService.withTransaction
#### Defined in
[medusa/src/interfaces/transaction-base-service.ts:20](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/interfaces/transaction-base-service.ts#L20)
___
### workStage
**workStage**(`idempotencyKey`, `callback`): `Promise`<`IdempotencyKey`\>
Performs an atomic work stage.
An atomic work stage contains some related functionality, that needs to be
transactionally executed in isolation. An idempotent request will
always consist of 2 or more of these phases. The required phases are
"started" and "finished".
#### Parameters
| Name | Type | Description |
| :------ | :------ | :------ |
| `idempotencyKey` | `string` | current idempotency key |
| `callback` | (`transactionManager`: `EntityManager`) => `Promise`<`IdempotencyCallbackResult`\> | functionality to execute within the phase |
#### Returns
`Promise`<`IdempotencyKey`\>
new updated idempotency key
#### Defined in
[medusa/src/services/idempotency-key.ts:196](https://github.com/medusajs/medusa/blob/5a42c1152/packages/medusa/src/services/idempotency-key.ts#L196)