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

# Interface: ListMrtDeploymentsBackendOptions

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts:597](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L597)

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

## Properties

### legacyAuth?

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

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts:603](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L603)

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/deployment.ts:609](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L609)

Maximum results per page (forwarded to both backends; SCAPI caps at 200).

***

### offset?

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

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts:611](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L611)

Pagination offset (forwarded to both backends).

***

### onFallback()?

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

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts:615](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L615)

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/deployment.ts:617](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L617)

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/deployment.ts:613](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L613)

Legacy MRT API origin.

***

### preference

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

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts:599](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L599)

Resolved `--mrt-backend` preference.

***

### projectSlug

> **projectSlug**: `string`

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts:605](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L605)

Project slug (= SCAPI storefront ID).

***

### scapiConnection?

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

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts:601](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L601)

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

***

### targetSlug

> **targetSlug**: `string`

Defined in: [packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts:607](https://github.com/SalesforceCommerceCloud/b2c-developer-tooling/blob/d2e58e4f1db44e0a640eb7f21c14a77b6380b451/packages/b2c-tooling-sdk/src/operations/mrt/deployment.ts#L607)

Target/environment slug (= SCAPI environment ID).