Creating a custom query

About custom queries

Note

Creating a custom query is optional, and the github/codeql repository contains a large number of example queries you can use instead.

You create a new query file from a template for a given language, which imports the standard libraries for analyzing that language. For more information, see About CodeQL queries in the CodeQL documentation.

Creating a custom query

In the extension sidebar, open the "Queries" view, then click the Create query icon.
In the VS Code Command Palette, select the target language for your query. If you've chosen not to create your custom query in an existing directory, selecting a language will autogenerate a directory labeled codeql-custom-queries-LANGUAGE, where LANGUAGE is the name of the selected language. A query template labeled example.ql will then be added to the existing or autogenerated directory.
In the template, write your custom query, then save the file. Once your query is finished, you can run it from the "Queries" view.

Creating a custom query

In this article

About custom queries

Creating a custom query

Further reading