How do I test whether input is present using REGO? I've found the following approach.
package sandbox
default present = false
present {
input.payload
}Is doing it this way correct? Could I use a better approach instead?
How can I tell whether input was provided to a REGO policy?
The conversation continues 2
Jun Permalink No, your approach is fully correct. Occasionally you may need to handle
input.payloadactually existing while its value isfalse, in which case unification (https://www.openpolicyagent.org/docs/latest/policy-language/#unification-) provides a way to test its presence:package sandbox present { _ = input.payload }However, I'd choose your approach in 98% of cases.
package sandbox
default supplied = false
supplied {input["payload"]}
The result is true when your input contains the 'payload' key . Otherwise the default value false is returned
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