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Winnow is a framework for server-side filtering of data.

Project description

Winnow is a framework for server-side filtering of data. It is designed to be expressive, extensible, and fast. Winnow’s inputs look something like this:

{
    "logical_op": "&",
    "filter_clauses": [
        {
            "data_source": "Created",
            "operator": "before",
            "value": "2015-03-01"
        },
        {
            "data_source": "Owner",
            "operator": "any of",
            "value": [
                {"name": "Steven", "id": 23},
                {"name": "Margaret", "id": 41},
                {"name": "Evan", "id": 90}
            ]
        }
    ]
}

Winnow’s outputs look something like this:

"WHERE created_date < %s::timestamp AND owner_id = ANY(VALUES (%s),(%s),(%s))",
('2015-03-01', 23, 41, 90)

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