> For the complete documentation index, see [llms.txt](https://docs.langstack.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.langstack.com/welcome/get-started/learn-langstack/introduction-to-rest-api/query-strings/how-to-create-and-work-with-query-strings.md).

# How to create and work with Query strings

* To create a Query string: 
  * Go to the Inputs & outputs tab. 
  * Click the \[+ Query string] button in the Parameters>Query strings section.

{% embed url="<https://media.langstack.com/documentation/media/images/code/training_manual/chapter_4/ch4createqs.png>" %}

* To copy a Query string, click the clipboard icon in the top right corner.

{% embed url="<https://media.langstack.com/documentation/media/images/code/training_manual/chapter_4/ch4copyqs.png>" %}

* When a query string is copied, note that the query name and URL query names are updated to “(copied queryname)\_copy\_1”. For example, if a query string with the name “Number1” is copied, the copied query string will automatically have the name “Number1\_copy\_1”. This is to ensure that the query string name remains unique. \
  The query string names are editable. Therefore, users can edit the copied name as required.
* To expand and collapse the Query string, click the arrow in the top right corner.

![](/files/8y0xUhBYy7vMMtCMwZls)

* To delete a Query string, click the (x) button in the top right corner.

{% embed url="<https://media.langstack.com/documentation/media/images/code/training_manual/chapter_4/ch4delqs.png>" %}