# Shopify parameters

> Use the available parameter types to incorporate content from Shopify into your components and compositions.

Source: https://docs.uniform.app/docs/integrations/commerce/shopify/shopify-parameters

After you install the Shopify integration, the following
parameter types are available. You can use these to incorporate
content from Shopify into your components and compositions.

| Parameter type | Description |
| --- | --- |
| [Shopify Product Query](#shopify-product-query) | Specify search criteria that's used to select a single or multiple products from Shopify. |
| [Shopify Product Search](#shopify-product-search) | Select one or more products from Shopify. |

## Shopify Product Query

This parameter type allows a Uniform user to configure a query
that will determine the Shopify products that are retrieved.

### Add parameter to component

To allow a user to configure a query to determine the
products from Shopify to retrieve, you must add a parameter
to a component. The parameter is used to store the query settings
used to perform the search.

1. In Uniform, navigate to your component.
2. Add a new parameter using the parameter type **Shopify Product Query**.
3. The following values can be specified:

   | Name | Description |
   | --- | --- |
   | Allowed Content Types | By default, no content types are selected, which means that any kind of products can be selected. If you want to limit the types of products that can be selected, click one or more of the content types listed. |
   | Display field (optional) | In Uniform, this parameter type displays a list of products. By default, the product title is displayed. This field lets you change that so a different product property is displayed. |

   ![Shopify Product Query parameter configuration.](https://docs.uniform.app/images/integrations/commerce/shopify/use-parameters/shopify-product-query/parameter-config.png)

### Edit parameter value

When you use a component with a Shopify Product Query parameter,
by default no product will be selected. You are prompted to
select a product.

Configuring this parameter type involves specifying the way
a product search should work. You are able to control the
following search settings:

| Field | Description |
| --- | --- |
| Product Category | Only products associated with the selected content type are included. |
| Keyword | Only products whose names match the specified keyword(s) are included. |
| Count | The maximum number of products that are returned. |
| Sort | The product property used to sort the products that are returned. |
| Sort Order | Whether the products should be sorted in ascending or descending order. |

![Example of the editing interface for an Shopify Product Query parameter on a component.](https://docs.uniform.app/images/integrations/commerce/shopify/use-parameters/shopify-product-query/edit-parameter-value.png)

### Configure an enhancer

When a product query is configured, Uniform only stores the
search criteria, not the results of the search. Your
front-end application must perform the search using
that criteria. Uniform provides an enhancer to simplify
this process.

> **Tip:**
>
> Using the enhancer provided by Uniform saves you from having
> to write logic to interact directly with Shopify.

#### How Uniform stores the search criteria

The following is an example of what Uniform
stores for the parameter.

```json
{
  "type": "shopify-product-query",
  "value": {
    "options": {
      "count": 2,
      "categories": [],
      "brand": "",
      "keyword": "",
      "sort": "TITLE",
      "sortOrder": "asc"
    }
  }
}
```

The product search criteria is stored as the value.

#### Add the enhancer

Uniform provides an enhancer so you don't need to write the API
calls to Shopify to perform the product search.

1. Add the following npm packages to your front-end application:

   ```
   @uniformdev/canvas
   @uniformdev/canvas-shopify
   ```
2. In a text editor, open the file where you retrieve the
   composition definition from Uniform.

   > **About this step:**
   >
   > You are looking for the code calls the async function
   > `getComposition`. The code below assumes the
   > object returned is set in a variable `composition`.
3. Add the following import statements:

   ```javascript
   import { EnhancerBuilder, enhance } from '@uniformdev/canvas';
   import { 
       createEnhancer,
       ShopifyClient,
       SHOPIFY_PARAMETER_TYPES,
   } from '@uniformdev/canvas-shopify';
   ```
4. Add the following code:

   ```javascript
   const client = new ShopifyClient({
       developmentStore: '!!! YOUR SHOPIFY STORE ID !!!',
       webhookVersion: '!!! YOUR SHOPIFY WEBHOOK VERSION !!!',
       accessToken: '!!! YOUR SHOPIFY ACCESS TOKEN !!!',
   });
   const shopifyEnhancer = createEnhancer({ clients: client });
   ```

   > **About this step:**
   >
   > We recommend you moving the Shopify credentials to
   > environment variables rather than hard-coding them in
   > the front-end app.
5. Add the following code:

   ```javascript
   await enhance({
       composition,
       enhancers: new EnhancerBuilder().parameterType(
       SHOPIFY_PARAMETER_TYPES, 
       shopifyEnhancer
       ),
       context: {},
   });
   ```

   > **About this step:**
   >
   > This registers the enhancer to be used for any occurrence
   > of the Shopify Product Query parameter.

> **Next steps:**
>
> Now, the parameter value in the composition is mutated to
> include the field values for the Shopify products
> returned when the search runs (instead of just being settings).

## Shopify Product Search

This parameter type allows a Uniform user to select one or more Shopify products.

### Add parameter to component

To allow a user to select products from Shopify,
you must add a parameter to a component. The parameter is used
to store the identifier to the selected products when the user
selects one or more products.

1. In Uniform, navigate to your component.
2. Add a new parameter using the parameter type **Shopify Product Search**.
3. The following values can be specified:

   | Name | Description |
   | --- | --- |
   | Allowed Content Types | By default, no content types are selected, which means that any kind of products can be selected. If you want to limit the types of products that can be selected, click one or more of the content types listed. |
   | Allow multi select | Indicates whether the user can select only one product (the default), or more than one product. |
   | Display field (optional) | In Uniform, this parameter type displays a list of products. By default, the product name is displayed. This field lets you change that so a different product property is displayed. |
   | Required | Indicates whether the value is required when the component is used. |

   ![Shopify Product Search parameter configuration.](https://docs.uniform.app/images/integrations/commerce/shopify/use-parameters/shopify-product-search/add-parameter-to-component.png)

### Edit parameter value

When you use a component with a Shopify Product Search
parameter, by default no product will be selected. You are
prompted to select a product (or products, if you have
allowed multi-selection).

1. Click **Select**.

   ![](https://docs.uniform.app/images/integrations/commerce/shopify/use-parameters/shopify-product-search/edit-value-default.png)
2. Click the product(s) you want to select.

   ![](https://docs.uniform.app/images/integrations/commerce/shopify/use-parameters/shopify-product-search/edit-value-filters.png)

   > **About this step:**
   >
   > A couple of filters are available. The dropdown allows you
   > to filter by content type. The text box allows you to filter
   > by text in the product name and other fields.
3. Click **Accept** to save your selection.

   ![](https://docs.uniform.app/images/integrations/commerce/shopify/use-parameters/shopify-product-search/edit-value-saved.png)

   > **About this step:**
   >
   > After your selection is saved, you are presented with the following options:
   >
   > - If you want to edit the selected product in Shopify, click **Edit**.
   > - If you want to deselect the product, click **Unlink**.

### Configure an enhancer

This parameter type uses the same enhancer as the [Shopify Product Query](#configure-an-enhancer)
parameter type.

> **Note:**
>
> The following is an example of what Uniform stores for the parameter.
>
> ```json
> {
>   "type": "shopify-product-search",
>   "value": {
>     "entities": [
>       {
>         "id": "######################"
>       },
>       {
>         "id": "######################"
>       }
>     ]
>   }
> }
> ```