medusa-store/www/apps/docs/content/references/services/interfaces/IEventBusModuleService.mdx

---
displayed_sidebar: servicesSidebar
---

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

# IEventBusModuleService

## Methods

#### emit

`**emit**<TypeParameter T>(eventName, data, options?): Promise&#60;void&#62;`

##### Type Parameters

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

##### Parameters

<ParameterTypes parameters={[
  {
    "name": "eventName",
    "type": "`string`",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "data",
    "type": "`T`",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "options",
    "type": "`Record<string, unknown>`",
    "description": "",
    "optional": true,
    "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": []
  }
]} />

`**emit**<TypeParameter T>(data): Promise&#60;void&#62;`

##### Type Parameters

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

##### Parameters

<ParameterTypes parameters={[
  {
    "name": "data",
    "type": "[EmitData](../types/EmitData.mdx)&#60;T&#62;[]",
    "description": "",
    "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": []
  }
]} />

___

#### subscribe

`**subscribe**(eventName, subscriber, context?): [IEventBusModuleService](IEventBusModuleService.mdx)`

##### Parameters

<ParameterTypes parameters={[
  {
    "name": "eventName",
    "type": "`string` \\| `symbol`",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "subscriber",
    "type": "[Subscriber](../types/Subscriber.mdx)",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "context",
    "type": "[SubscriberContext](../types/SubscriberContext.mdx)",
    "description": "",
    "optional": true,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

##### Returns

[IEventBusModuleService](IEventBusModuleService.mdx)

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

___

#### unsubscribe

`**unsubscribe**(eventName, subscriber, context?): [IEventBusModuleService](IEventBusModuleService.mdx)`

##### Parameters

<ParameterTypes parameters={[
  {
    "name": "eventName",
    "type": "`string` \\| `symbol`",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "subscriber",
    "type": "[Subscriber](../types/Subscriber.mdx)",
    "description": "",
    "optional": false,
    "defaultValue": "",
    "expandable": false,
    "children": []
  },
  {
    "name": "context",
    "type": "[SubscriberContext](../types/SubscriberContext.mdx)",
    "description": "",
    "optional": true,
    "defaultValue": "",
    "expandable": false,
    "children": []
  }
]} />

##### Returns

[IEventBusModuleService](IEventBusModuleService.mdx)

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