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RegEx element value validation for Logic App escaping from Json to XML

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Recently we blocked the execution of Json schema pattern in Azure Logic Apps Parse Json action because of DoS security concerns. The matching XML XSD schema pattern feature however is available. Because of the per-customer sandbox environment in which the XML validation is executed for Logic Apps, we did not have to block use of XSD pattern. And Logic App supports converting Json to XML (native function xml()).

You may test this using the example XML schema and instance at: https://msdn.microsoft.com/en-us/library/ms256129(v=vs.110).aspx

[caption id="attachment_825" align="alignnone" width="300"] A sample Logic App using XML schema pattern regex in XML Validation action.[/caption]

Remember to associate the Logic App with an Integration Account (try the free SKU) prior to add the XML Validation action, as you will need the XML schema uploaded in the associated Integration Account.

Comments

  • Anonymous
    June 20, 2019
    This blog has been moved off the MSDN platform. Find further content and update at https://www.linkedin.com/today/author/daviburgComments are locked as part of the blog migration, so please reach out to your customer support contact for assistance with Microsoft products and services.