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[@salesforce/b2c-tooling-sdk](../../../modules.md) / [operations/mrt](../index.md) / ListMrtBundlesBackendOptions

# Interface: ListMrtBundlesBackendOptions

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:900](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L900)

Options for [listMrtBundles](../functions/listMrtBundles.md).

## Properties

### legacyAuth?

> `optional` **legacyAuth**: [`AuthStrategy`](../../../auth/interfaces/AuthStrategy.md)

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:906](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L906)

Legacy API-key auth strategy. Optional; required only when the legacy backend actually runs.

***

### limit?

> `optional` **limit**: `number`

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:910](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L910)

Maximum results per page (forwarded to both backends).

***

### offset?

> `optional` **offset**: `number`

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:912](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L912)

Pagination offset (forwarded to both backends).

***

### onFallback()?

> `optional` **onFallback**: (`reason`) => `void`

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:916](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L916)

Invoked when `auto` falls back from SCAPI to legacy.

#### Parameters

##### reason

`string`

#### Returns

`void`

***

### onResolve()?

> `optional` **onResolve**: (`backend`) => `void`

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:918](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L918)

Invoked with the backend that serves the call (for `-D` debug).

#### Parameters

##### backend

[`MrtBackend`](../type-aliases/MrtBackend.md)

#### Returns

`void`

***

### origin?

> `optional` **origin**: `string`

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:914](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L914)

Legacy MRT API origin.

***

### preference

> **preference**: [`MrtBackendPreference`](../type-aliases/MrtBackendPreference.md)

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:902](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L902)

Resolved `--mrt-backend` preference.

***

### projectSlug

> **projectSlug**: `string`

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:908](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L908)

Project slug (= SCAPI storefront ID).

***

### scapiConnection?

> `optional` **scapiConnection**: [`ScapiMrtConnection`](ScapiMrtConnection.md)

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/push.ts:904](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/push.ts#L904)

SCAPI connection; when absent, `auto` uses legacy and `scapi` throws.