Rename field names while Indexing a document

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1

I have a JSON object with some of the fields like this:-

    {
        "desc": "this is test description",
        "name": "some random name",
    }

While indexing this document, I would like to change the field names and my document after indexing should look like this:-

{
    "description": "this is test description",
    "user_name": "some random name",
}

I've read about the Ingest pipeline processort but they only rename after a field is created. Is there any way that I could change the field names while indexing?

2

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