json_schema_test.js

var schema = {
  "credentials" : {
    "name": "credentials",
    "type": "object",
    "required": true,
    "patternProperties" : {
      ".+": {
        "type": "object",
        "required": true,
        "properties": {
          "consumer_key" : {
            "name" : "consumer_key",
            "required" : true,
            "type": "string"
          },
          "consumer_secret" : {
            "name" : "consumer_secret",
            "required" : true,
            "type": "string"
          },
          "access_token" : {
            "name" : "access_token",
            "required" : true,
            "type": "string"
          },
          "access_token_secret" : {
            "name" : "access_token_secret",
            "required" : true,
            "type": "string"
          }
        }
      }
    }
  }
};

var obj = {
  credan: {}
};


var JSVlib = require('JSV').JSV; // json schema validator
var jsv = JSVlib.createEnvironment();
var report = jsv.validate(obj, schema);
if (report.errors.length !== 0) {  // protocol.js json errors
  console.log(' invalid object format '+JSON.stringify(report.errors));
} else {
  console.log(' job.object schema validated ');//, report);
}