---
displayed_sidebar: servicesSidebar
---

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

# NotificationService

## Constructors

### constructor

`**new NotificationService**(container)`

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "container",
    "type": "[InjectedDependencies](../types/InjectedDependencies-17.mdx)",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

## Properties

<ParameterTypes parameters={[
  {
    "name": "__configModule__",
    "type": "`Record<string, unknown>`",
    "description": "",
    "optional": true,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "__container__",
    "type": "`any`",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "__moduleDeclaration__",
    "type": "`Record<string, unknown>`",
    "description": "",
    "optional": true,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "attachmentGenerator_",
    "type": "`unknown`",
    "description": "",
    "optional": false,
    "defaultValue": "null",
    "expandable": false,
    "children": []
  },
  {
    "name": "container_",
    "type": "[InjectedDependencies](../types/InjectedDependencies-17.mdx) & `&#123;&#125;`",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "logger_",
    "type": "[Logger](../types/Logger-1.mdx)",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "manager_",
    "type": "EntityManager",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "notificationProviderRepository_",
    "type": "Repository&#60;[NotificationProvider](NotificationProvider.mdx)&#62;",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "notificationRepository_",
    "type": "Repository&#60;[Notification](Notification.mdx)&#62;",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "subscribers_",
    "type": "`object`",
    "description": "",
    "optional": false,
    "defaultValue": "{}",
    "expandable": false,
    "children": []
  },
  {
    "name": "transactionManager_",
    "type": "`undefined` \\| EntityManager",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

## Accessors

### activeManager\_

`Protected get**activeManager_**(): EntityManager`

#### Returns

EntityManager

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

## Methods

### atomicPhase\_

`Protected **atomicPhase_**<TypeParameter TResult, TypeParameter TError>(work, isolationOrErrorHandler?, maybeErrorHandlerOrDontFail?): Promise&#60;TResult&#62;`

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.

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

#### 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": []
  }
]} />

#### Returns

Promise&#60;TResult&#62;

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

___

### handleEvent

`**handleEvent**(eventName, data): Promise&#60;undefined \| void \| [Notification](Notification.mdx)[]&#62;`

Handles an event by relaying the event data to the subscribing providers.
The result of the notification send will be persisted in the database in
order to allow for resends. Will log any errors that are encountered.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "eventName",
    "type": "`string`",
    "description": "the event to handle",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "data",
    "type": "`Record<string, unknown>`",
    "description": "the data the event was sent with",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

Promise&#60;undefined \| void \| [Notification](Notification.mdx)[]&#62;

<ParameterTypes parameters={[
  {
    "name": "Promise",
    "type": "Promise&#60;undefined \\| void \\| [Notification](Notification.mdx)[]&#62;",
    "optional": false,
    "defaultValue": "",
    "description": "the result of notification subscribed",
    "expandable": false,
    "children": []
  }
]} />

___

### list

`**list**(selector, config?): Promise&#60;[Notification](Notification.mdx)[]&#62;`

Retrieves a list of notifications.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "selector",
    "type": "[Selector](../types/Selector.mdx)&#60;[Notification](Notification.mdx)&#62;",
    "description": "the params to select the notifications by.",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "config",
    "type": "[FindConfig](../interfaces/FindConfig.mdx)&#60;[Notification](Notification.mdx)&#62;",
    "description": "the configuration to apply to the query",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

Promise&#60;[Notification](Notification.mdx)[]&#62;

<ParameterTypes parameters={[
  {
    "name": "Promise",
    "type": "Promise&#60;[Notification](Notification.mdx)[]&#62;",
    "optional": false,
    "defaultValue": "",
    "description": "the notifications that satisfy the query.",
    "expandable": false,
    "children": []
  }
]} />

___

### listAndCount

`**listAndCount**(selector, config?): Promise&#60;[[Notification](Notification.mdx)[], number]&#62;`

Retrieves a list of notifications and total count.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "selector",
    "type": "[Selector](../types/Selector.mdx)&#60;[Notification](Notification.mdx)&#62;",
    "description": "the params to select the notifications by.",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "config",
    "type": "[FindConfig](../interfaces/FindConfig.mdx)&#60;[Notification](Notification.mdx)&#62;",
    "description": "the configuration to apply to the query",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

Promise&#60;[[Notification](Notification.mdx)[], number]&#62;

<ParameterTypes parameters={[
  {
    "name": "Promise",
    "type": "Promise&#60;[[Notification](Notification.mdx)[], number]&#62;",
    "optional": false,
    "defaultValue": "",
    "description": "the notifications that satisfy the query as well as the count.",
    "expandable": false,
    "children": []
  }
]} />

___

### registerAttachmentGenerator

`**registerAttachmentGenerator**(service): void`

Registers an attachment generator to the service. The generator can be
used to generate on demand invoices or other documents.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "service",
    "type": "`unknown`",
    "description": "the service to assign to the attachmentGenerator",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

`void`

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

___

### registerInstalledProviders

`**registerInstalledProviders**(providerIds): Promise&#60;void&#62;`

Takes a list of notification provider ids and persists them in the database.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "providerIds",
    "type": "`string`[]",
    "description": "a list of provider ids",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

Promise&#60;void&#62;

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

___

### resend

`**resend**(id, config?): Promise&#60;[Notification](Notification.mdx)&#62;`

Resends a notification by retrieving a prior notification and calling the
underlying provider's resendNotification method.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "id",
    "type": "`string`",
    "description": "the id of the notification",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "config",
    "type": "[FindConfig](../interfaces/FindConfig.mdx)&#60;[Notification](Notification.mdx)&#62;",
    "description": "any configuration that might override the previous send",
    "optional": false,
    "defaultValue": "{}",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

Promise&#60;[Notification](Notification.mdx)&#62;

<ParameterTypes parameters={[
  {
    "name": "Promise",
    "type": "Promise&#60;[Notification](Notification.mdx)&#62;",
    "optional": false,
    "defaultValue": "",
    "description": "the newly created notification",
    "expandable": false,
    "children": []
  }
]} />

___

### retrieve

`**retrieve**(id, config?): Promise&#60;[Notification](Notification.mdx)&#62;`

Retrieves a notification with a given id

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "id",
    "type": "`string`",
    "description": "the id of the notification",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "config",
    "type": "[FindConfig](../interfaces/FindConfig.mdx)&#60;[Notification](Notification.mdx)&#62;",
    "description": "the configuration to apply to the query",
    "optional": false,
    "defaultValue": "{}",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

Promise&#60;[Notification](Notification.mdx)&#62;

<ParameterTypes parameters={[
  {
    "name": "Promise",
    "type": "Promise&#60;[Notification](Notification.mdx)&#62;",
    "optional": false,
    "defaultValue": "",
    "description": "the notification",
    "expandable": false,
    "children": []
  }
]} />

___

### retrieveProvider\_

`Protected **retrieveProvider_**(id): [AbstractNotificationService](AbstractNotificationService.mdx)`

Finds a provider with a given id. Will throw a NOT\_FOUND error if the
resolution fails.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "id",
    "type": "`string`",
    "description": "the id of the provider",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

[AbstractNotificationService](AbstractNotificationService.mdx)

<ParameterTypes parameters={[
  {
    "name": "AbstractNotificationService",
    "type": "[AbstractNotificationService](AbstractNotificationService.mdx)",
    "optional": false,
    "defaultValue": "",
    "description": "the notification provider",
    "expandable": false,
    "children": []
  }
]} />

___

### send

`**send**(event, eventData, providerId): Promise&#60;undefined \| [Notification](Notification.mdx)&#62;`

Sends a notification, by calling the given provider's sendNotification
method. Persists the Notification in the database.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "event",
    "type": "`string`",
    "description": "the name of the event",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "eventData",
    "type": "`Record<string, unknown>`",
    "description": "the data the event was sent with",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "providerId",
    "type": "`string`",
    "description": "the provider that should handle the event.",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

Promise&#60;undefined \| [Notification](Notification.mdx)&#62;

<ParameterTypes parameters={[
  {
    "name": "Promise",
    "type": "Promise&#60;undefined \\| [Notification](Notification.mdx)&#62;",
    "optional": false,
    "defaultValue": "",
    "description": "the created notification",
    "expandable": false,
    "children": []
  }
]} />

___

### shouldRetryTransaction\_

`Protected **shouldRetryTransaction_**(err): boolean`

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "err",
    "type": "`Record<string, unknown>` \\| `&#123; code: string  &#125;`",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

`boolean`

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

___

### subscribe

`**subscribe**(eventName, providerId): void`

Subscribes a given provider to an event.

#### Parameters

<ParameterTypes parameters={[
  {
    "name": "eventName",
    "type": "`string`",
    "description": "the event to subscribe to",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "providerId",
    "type": "`string`",
    "description": "the provider that the event will be sent to",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

#### Returns

`void`

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

___

### withTransaction

`**withTransaction**(transactionManager?): [NotificationService](NotificationService.mdx)`

#### Parameters

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

#### Returns

[NotificationService](NotificationService.mdx)

<ParameterTypes parameters={[
  {
    "name": "NotificationService",
    "type": "[NotificationService](NotificationService.mdx)",
    "optional": false,
    "defaultValue": "",
    "description": "",
    "expandable": false,
    "children": []
  }
]} />