JSON Schema function validation

example.js

const api = {};
const ajv = new Ajv({
   coerceTypes: true,
   useDefaults: true,
   allErrors: true,
});


api.api = (schema, handler) => {
   const validator = ajv.compile(schema);

   return (event, callback) => {
       const data = event.data;
       const valid = validator(data);

       if (!valid) {
           // callback or promise
           if (!callback) {
               return Bluebird.reject(new errors.INVALID_DATA(validator.errors));
           }
           return callback(new errors.INVALID_DATA(validator.errors));
       }

       // callback or promise
       if (!callback) {
           return Bluebird.promisify(handler)(event);
       }
       return handler(event, callback);
   };
};

validation.js

fnChecker = (schema, fn) => {
 let _schema = schemas[schema];
 return function (...args) {
   if (schema.validate(args)) {
     return fn.apply(fn, args);
   }
   throw new SchemaValidationError(schema.errors);
 }
}

const schemas = {
 'callUser': {
   ...
 }
};




const callUser = createRemoteUserApiMethod('callUser', (name, language) => {

});