#### 

The Sitecore GraphQL API is an implementation of a GraphQL server on top of Sitecore. It is designed to be a generic GraphQL service platform, i.e. it's designed to host your API and present it via GraphQL queries. The API also supports real-time data using GraphQL subscriptions.

Last year we worked on building sites based on Sitecore JSS architecture. As usual, all of our pages had a datasource that are located in an item in the PageComponents folder:

![](https://www.brimit.com/-/media/project/brimit/blog/2020/datasources.png) 

For example, we want to have a component that renders all banners from the Banners folder. We use the Component GraphQL Query to define a structure of data that comes from the Layout Service. By default, GraphQL doesn’t support the Sitecore item queries, such as query:./\*[@@name='Page Components']. But sometimes it would be great to have more flexibility than requesting an item only by item path or its ID. To make it possible, we decided to build a custom query. You can find the code below.

![](https://www.brimit.com/-/media/project/brimit/blog/2020/article-single-sample1.png) 

The complete code is available by the [link](https://github.com/ampach/Sitecore/blob/master/GraphQL%20Queries/SelectSingleItemQuery.cs).

Then we need to register our query:

![](https://www.brimit.com/-/media/project/brimit/blog/2020/article-single-sample2.png) 

The config file is available [here](https://github.com/ampach/Sitecore/blob/master/GraphQL%20Queries/SelectSingleItemQuery.config).

When the query is deployed to the website root, we can build the following query:

![](https://www.brimit.com/-/media/project/brimit/blog/2020/sitecore-item-query.png)

![](https://www.brimit.com/-/media/project/brimit/blog/article-single-sample3.png)

Also, using this extension, we can can rebuild the query mentioned in [GraphQL Extensibility: SiteRelativeItem Query](https://www.brimit.com/blog/graphql-extensibility-siterelativeitem-query) by building the query like below.

![](https://www.brimit.com/-/media/project/brimit/blog/article-single-sample4.png) 

The result will be the same as in the case of using the [SiteRelativeItem Query](https://www.brimit.com/blog/graphql-extensibility-siterelativeitem-query).

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###### Author

[!\[artsiom-photo\](https://www.brimit.com/-/jssmedia/feature/blogs/authors/artsiom-200.jpg?h=202&iar=0&w=200&hash=41797D2540DF6EB6FDF558360F6F62B8)
Artsem Prashkovich
Sitecore MVP/ Solution Architect](https://www.brimit.com/blog/author?authors=Artsem%20Prashkovich)

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![](https://bat.bing.net/action/0?ti=187017043&tm=gtm002&Ver=2&mid=43e2eaa8-1237-40af-bffd-9e4077d780e1&bo=2&gtm_tag_source=1&pi=0&lg=en-US&sw=800&sh=600&sc=24&nwd=1&tl=GraphQL%20Extensibility%3A%20%E2%80%9CSelectSingleItem%E2%80%9D%20Query&p=https%3A%2F%2Fwww.brimit.com%2Fblog%2Fgraphql-extensibility-select-single-item-query&r=&lt=314&evt=pageLoad&sv=2&asc=D&cdb=AQAY&rn=888046)