Tokengating lets merchants offer eligible token holders exclusive access to products and discounts. For example, a merchant can give customers who hold their token a 25%-off discount. Customers can unlock the discount by connecting their wallet to prove that they own the token. Merchants can use tokengating to build loyalty and reward mechanisms for their communities and customers.

## Tokengating app requirements

Tokengating apps on Shopify enable merchants to gate access to products, promotions, and content based on the contents of a customer’s Web3 wallet. All gated variants and all gated line items within completed orders must have a programmatic representation of their gated status using metafields.

All tokengating apps must have a programmatic representation of their gated status using metafields with the following specifications:

### Tokengating order metafields

Any orders that contain line items that are either added or discounted as a result of a buyer successfully passing a gate-check must be identified by adding the line item IDs to the [`Order`](/docs/api/admin-graphql/latest/objects/order) object through the use of the following specified metafields:

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</div>
</div>

<script data-option="title" data-value="Tokengating order metafields GraphQL mutation"></script>

<script type="text/plain" data-language="graphql" data-title="GraphQL mutation">
RAW_MD_CONTENTmutation($input: OrderInput!) {
  orderUpdate(input: $input) {
    order {
      metafields(first: 100) {
        edges {
          node {
            namespace
            key
            value
          }
        }
      }
    }
  }
}
END_RAW_MD_CONTENT</script>
<script type="text/plain" data-language="json" data-title="Input">
RAW_MD_CONTENT{
  "input" : {
    "id": "gid://shopify/Order/{$order_id}",
    "metafields": [
      {
        "namespace": "web_3",
        "key": "gated_wallet_line_items",
        "value":
        [
          "{$line_item_id}",
          "{$line_item_id}"
        ],
        "type": "list.single_line_text_field"
      }
    ]
  }
}
END_RAW_MD_CONTENT</script>

</div>
</p>


### Tokengating product metafields

Any products that contain one or more gated variants must list the gated variant IDs within the [`Product`](/docs/api/admin-graphql/latest/objects/product) object using product metafields as follows:

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<div class="react-code-block-preload-codeline-number"></div>
<div class="react-code-block-preload-codeline"></div>
</div>

</div>
</div>

<script data-option="title" data-value="Tokengating product metafields GraphQL mutation"></script>

<script type="text/plain" data-language="graphql" data-title="GraphQL mutation">
RAW_MD_CONTENTmutation($input: ProductInput!) {
  productUpdate(input: $input) {
    product {
      metafields(first: 100) {
        edges {
          node {
            namespace
            key
            value
          }
        }
      }
    }
  }
}
END_RAW_MD_CONTENT</script>
<script type="text/plain" data-language="json" data-title="Input">
RAW_MD_CONTENT{
  "input" : {
    "id": "gid://shopify/Product/{$product_id}",
    "metafields": [
      {
        "namespace": "web_3",
        "key": "gated_variants",
        "value":
        [
          "{$product_variant_id}",
          "{$product_variant_id}"
        ],
        "type": "list.single_line_text_field",
      }
    ]
  }
}
END_RAW_MD_CONTENT</script>

</div>
</p>