> ## Documentation Index
> Fetch the complete documentation index at: https://docs.enterspeed.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Additional properties

If you need to add additional properties to a content or media node before it's ingested into Enterspeed, you can use `EnterspeedPropertyDataMappers` or `EnterspeedPropertyMetaDataMappers`.

<Info>
  You can also create a [Custom Property Service](/enterspeed/integrations/umbraco/enterspeed-propertys-service#custom-property-service) and override some of the `MapAdditionalProperties` methods,
  however mappers are more flexible if you are doing conditional mapping, like only adding additional properties for specific content types.
</Info>

## Mappers

With mappers you can create small effective classes to map additional properties for types that matches a filter, e.g. all nodes of a specific type.

You can create mappers to add properties to the properties object or the meta-data object.

Note that we in this example are using `StringEnterspeedProperty`. You can choose between multiple property types.
(Array, boolean, number, object and so on.)

### Example

```csharp theme={null}
// Data mapper example
public class SlugDataMapper : IEnterspeedPropertyDataMapper
{
    public bool IsMapper(IPublishedContent content)
        => content.ContentType.Alias == "contentPage";

    public void MapAdditionalData(IDictionary<string, IEnterspeedProperty> data, IPublishedContent content, string culture)
    {
        // some logic

        data["slug"] = new StringEnterspeedProperty("slug", "mySlugValue");
    }
}
```

```csharp theme={null}
// Meta-data mapper example
public class SlugMetaDataMapper : IEnterspeedPropertyMetaDataMapper
{
    public bool IsMapper(IPublishedContent content)
        => content.ContentType.Alias == "contentPage";

    public void MapAdditionalData(IDictionary<string, IEnterspeedProperty> metaData, IPublishedContent content, string culture)
    {
        // some logic

        metaData["slug"] = new StringEnterspeedProperty("slug", "mySlugValue");
    }
}
```

### Registering your new property service

The mappers are registered in Umbraco via an [IComposer](https://docs.umbraco.com/umbraco-cms/reference/using-ioc).

**Umbraco 9+**

```csharp theme={null}
public class MyCustomComposer : IComposer
{
    public void Compose(IUmbracoBuilder builder)
    {
        builder.EnterspeedPropertyMetaDataMappers()
                .Append<SlugMetaDataMapper>();
    }
}
```

**Umbraco 8**

```csharp theme={null}
[RuntimeLevel(MinLevel = RuntimeLevel.Run)]
public class MyCustomComposer : IUserComposer
{
    public void Compose(Composition composition)
    {
        composition.EnterspeedPropertyMetaDataMappers()
                    .Append<SlugMetaDataMapper>();
    }
}
```

You should now be able to see the data you have mapped, in the data for your source entities in Enterspeed.

```json theme={null}
"metaData": {
	"name": "Tattoo",
	"culture": "en-us",
	"sortOrder": 0,
	"level": 3,
	"createDate": "2022-09-05T15.48.36",
	"updateDate": "2022-09-05T15.48.37",
	"nodePath": [
		"1097-en-us",
		"1098-en-us",
		"1099-en-us"
	],
	"slug": "mySlugValue"  👈👈👈
}
```