JS Json模式-AJV

Question

I'm using AJV (JS JSON Schema Validator), and I'm trying to find a way to extend the types it supports.

I'm getting this error because In the schema I have a custom type (DocumentReference that I'm validating in python - jsonschema as well)

Error: schema is invalid: data.properties['allow'].properties['custom_signature'].type should be equal to one of the allowed values, data.properties['allow'].properties['custom_signature'].type[0] should be equal to one of the allowed values, data.properties['allow'].properties['custom_signature'].type should match some schema in anyOf
    at Ajv.validateSchema (ajv.js?ea76:183)
    at Ajv._addSchema (ajv.js?ea76:312)
    at Ajv.compile (ajv.js?ea76:112)
    at eval (configs.js?76ed:66)

This is a small sample of the schema:

"custom_signature": {
    "type": [
        "DocumentReference",
        "object",
        "null"
    ]
},

In python jsonschema there is a way to extend the types and define how you want to validate them, is there some equivalent in AJV?

 var json = { "type": "object", "properties": { "custom_signature": { "type": [ "DocumentReference", "null", "object" ] } } }; const ajv = new Ajv({ allErrors: true }); console.log(ajv); const validate = ajv.compile(json); console.log(validate({'custom_signature': {}})); 

 <script src="https://cdnjs.cloudflare.com/ajax/libs/ajv/6.4.0/ajv.min.js"></script> 

JSFiddle

Answer 1

I just made a module to simplify some AJV issues. It also includes a new function called .addType():

Github: https://github.com/webarthur/super-ajv

NPM: https://www.npmjs.com/package/super-ajv

const ajv = new Ajv()

ajv.addType('mongoid', {
  compile: function () {
    return function (data) {
      const re = /^(?=[a-f\d]{24}$)(\d+[a-f]|[a-f]+\d)/i
      return re.test(data)
    }
  }
})

const schema = {
  properties: {
    user_id: { type: 'mongoid' }
  }
}

You can also:

const schema = {
  properties: {
    '*name': 'string',
    '*email': 'email',
    'age': 'number',
    '*message': 'string',
  }
}

Enjoy!