Problem statement: I have a requirement wherein we receive file in Appian from a third party system. For security reasons we want to restrict only few file extension.
I have created a WEB API using a ' Document Upload' Template , so that external systems can push documents to Appian.
I want to return error code in response when some hits this WEB API and upload files with extension other than .xlsx.
I have used document(http!request.body, "extension"), however this does not restrict document to be added to target folder.
Is it possible that , WEB API returning error code and not even allowing files with specific extension to be added to target folder.
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There is no way to restrict it as of now (still we can show validation error as a response) . Appian converts binary file request to appian document immediately when the external system hits Api . One solution for this is you can create a scheduler to delete unnesasary documents which will run daily or weekly