CODEWITHSUNDEEP
javascriptjsonschema
jocull
jocull

Reputation: 21155

Validate JSON Schema for list of known values

I have a special enum case in my code and need to validate against it:

{
  "status": 10
}

Let's use this imaginary list of valid values:

var valid = [10, 20, 23, 27];

How can I alter my JSON Schema to validate one of these values?

{
  type: 'object',
  required: ['status'],
  properties: {
    status: { type: number },
  }
}

Upvotes: 10

Views: 8355

Answers (2)

David
David

Reputation: 1246

If I understand you correctly, I think you'll have to loop through all the values as Javascript does not have a thing like enums. 

var validValues = [ 10, 20, 23, 27 ];
var statusType = json.properties.status.type;

/* This function call will return a boolean that tells you wether the value in your json is valid or not.*/
isValid( statusType ); 

function isValid( statusType )
{
  for( var i = 0; i < validValues.length; i++ )
    if( statusType === validValues[i] )
      return true;

  return false;
}

I have simplified the example a bit, but you'll get my drift.

Upvotes: -1

jruizaranguren
jruizaranguren

Reputation: 13635

You just define the status property as an enum:

{
    "type" : "object",
    "required" : ["status"],
    "properties" : {
        "status" : {
            "type" : "number",
            "enum" : [10, 20, 23, 27]
        }
    }
}

Upvotes: 17

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