JSON-schema: validating an integer formatted in a string with min and max values

Question

Through a json schema validator (like z-schema), I would like to validate an integer formatted in a string, e.g.:

{
    "myvalue": "45"
}

Currently, the following validation schema is:

{
    "type": "string",
    "pattern": "^[0-9]+$"
}

However, now it would be great to be able to validate a minimum and maximum value, like:

{
    "type": "integer",
    "minimum": 0,
    "maximum": 32
 }

However the above json value "45" is not an integer.

Answer 1

Without changing the type to integer, the best you can do is use the pattern keyword to enforce the range using a regular expression. Here is an example of a regular expression to match integers from 0..32.

/^[1-2]?[0-9]$|^3[0-2]$/