DXC Deployments - Json Transfoms

In DXC we can use Web.config transforms to modify our web.configs for different environments e.g. production.

My current project has json files which need transforms applied for various environments. Azure deploments also supports json config\transforms via JSON variable substitution as in link below.

https://docs.microsoft.com/en-us/azure/devops/pipelines/tasks/transforms-variable-substitution?view=azure-devops#json-variable-substitution

Is it posible to perform\configure JSON variable substitution for DXC deployments and if not what is the wrokaround?