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pythonjmespath

Return integer or string instead of None from a JMESPath query

Is there a way to return an integer or a string instead of None?
I know that I can do an additional check like:

item = {"SX": {"BX": 1}}

value = jmespath.search("SX.BX", item) if jmespath.search("SX.BX", item) else 0

but the condition is very long and I would like to make it easier.

Solution

  • You can build that logic in your JMESPath query:

    SX.BX || `0`

    Given the empty JSON:

    {}

    Would yield you 0, as you are excepting it.

    So, you Python code becomes:

    value = jmespath.search("SX.BX || `0`", item)