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# Resource: Recommendations Service Plugin

# Type: Extension Config

# Link: https://dev.wix.com/docs/api-reference/business-solutions/e-commerce/other-services/recommendations/recommendations-service-plugin/extension-config.md

## Description: The JSON object below defines the configuration for this service plugin extension. How you supply values depends on the framework you’re using:

+ **Self-hosted apps:** After adding a service plugin extension to your app in the app dashboard, provide configuration details in your extension's page. Learn more about how to add and configure a self-hosted service plugin extension with [REST](https://dev.wix.com/docs/build-apps/develop-your-app/frameworks/self-hosting/supported-extensions/backend-extensions/add-self-hosted-service-plugin-extensions-with-rest.md) or the [SDK](https://dev.wix.com/docs/build-apps/develop-your-app/frameworks/self-hosting/supported-extensions/backend-extensions/add-self-hosted-service-plugin-extensions-with-the-sdk.md).
+ **CLI apps:** When you [add a service plugin extension to your app with the Wix CLI](https://dev.wix.com/docs/build-apps/develop-your-app/frameworks/wix-cli/supported-extensions/backend-extensions/service-plugins/add-service-plugin-extensions-with-the-cli.md), the required configuration details are populated automatically. You can then customize them in your extension's [`plugin.json`](https://dev.wix.com/docs/build-apps/develop-your-app/frameworks/wix-cli/supported-extensions/backend-extensions/service-plugins/service-plugin-extension-files-and-code.md) file.


## Schema:

```json
 Type: Extension Config | type: RecommendationsProviderConfig
 Description: The JSON object below defines the configuration for this service plugin extension. How you supply values depends on the framework you’re using:

+ **Self-hosted apps:** After adding a service plugin extension to your app in the app dashboard, provide configuration details in your extension's page. Learn more about how to add and configure a self-hosted service plugin extension with [REST](https://dev.wix.com/docs/build-apps/develop-your-app/frameworks/self-hosting/supported-extensions/backend-extensions/add-self-hosted-service-plugin-extensions-with-rest.md) or the [SDK](https://dev.wix.com/docs/build-apps/develop-your-app/frameworks/self-hosting/supported-extensions/backend-extensions/add-self-hosted-service-plugin-extensions-with-the-sdk.md).
+ **CLI apps:** When you [add a service plugin extension to your app with the Wix CLI](https://dev.wix.com/docs/build-apps/develop-your-app/frameworks/wix-cli/supported-extensions/backend-extensions/service-plugins/add-service-plugin-extensions-with-the-cli.md), the required configuration details are populated automatically. You can then customize them in your extension's [`plugin.json`](https://dev.wix.com/docs/build-apps/develop-your-app/frameworks/wix-cli/supported-extensions/backend-extensions/service-plugins/service-plugin-extension-files-and-code.md) file.

       - name: deploymentUri  | type: string | description: URI where the application implementing the SPI is deployed.
       - name: catalogAppIds  | type: Array<string> | description: App IDs of catalogs for which recommended items can be found.
       - name: supportedAlgorithms  | type: Array<AlgorithmConfig> | description: The algorithms that this application can use to calculate item recommendations.
           - name: name  | type: string | description: Algorithm name. This value is not translatable.
           - name: description  | type: string | description: Algorithm description. This describes how the algorithm works and if it has any limitations regarding site content, number of items in the catalog, site traffic, and so on. This value is not translatable.
           - name: additionalInfo  | type: string | description: A supplemental `description`. It can be used to help break up and organize information. You can, for example, display this information as a tooltip or as an additional section that is collapsed by default.
               - name: value  | type: string | description: 
           - name: algorithmType  | type: string | description: Algorithms may have the following types: * `RELATED_ITEMS` - This type of algorithm provides recommendations based on 1 or more other provided items. For example, when an item is added to a cart, the algorithm can suggest other items frequently bought together with that item. * `GLOBAL` - This type of algorithm provides general recommendations based on site or project statistics. For example, bestsellers or new arrivals.
               enum: UNSPECIFIED, RELATED_ITEMS, GLOBAL
           - name: algorithmId  | type: string | description: Algorithm ID. This must be unique for a specific app but does not have to be unique across all apps on the site or in the project.

```