3 var url = require('url')
4 var assert = require('assert')
6 function ping (uri, params, cb) {
7 assert(typeof uri === 'string', 'must pass registry URI to ping')
8 assert(params && typeof params === 'object', 'must pass params to ping')
9 assert(typeof cb === 'function', 'must pass callback to ping')
11 var auth = params.auth
12 assert(auth && typeof auth === 'object', 'must pass auth to ping')
14 this.request(url.resolve(uri, '-/ping?write=true'), { auth: auth }, function (er, fullData) {
17 } else if (fullData) {
20 cb(new Error('No data received'))