santhosh-tekuri/jsonschema

invalid jsonType: time.Time

ssmall opened this issue · 3 comments

ssmall commented

It does not seem possible to validate schemas that contain strings with format date as they will automatically get unmarshaled into a Go time.Time and validation will fail with the message:

jsonschema: invalid jsonType: time.Time

The code on this Go Playground illustrates the issue: https://go.dev/play/p/Q1ciGF5PE5Y

Is this a bug with schema validation, or expected behavior? If it is expected behavior, is there a workaround to allow validating documents that contain date-formatted strings?

Thanks!

santhosh-tekuri commented

this is the expected behaviour;

the documentation clearly says value must be raw json value

i.e it must be string, boolean, number, map, array and composite of these.

in your case yaml unmarshalled it into time.Time. you unmarshal that value into string.

  • 👎1
ssmall commented

There's actually no way to control this behavior. It is the default behavior of the YAML unmarshaler when unmarshaling to any. Please reopen and consider a fix.

santhosh-tekuri commented

if you have used quotes around the value then it will get converted into string:

yamlString := `date: "2025-01-01"`