apigee - Node.js:Unable to invoke pipe function -

i trying out simple program invoke call backend & response back, here node.js code:

'use strict';  var util = require('util'); var http = require('http'); var request = require('request'); var stream = require('stream');   module.exports = {  summary:summary }  function summary(request, response) {  var id = request.swagger.params.id.value;  var url = "http://localhost:8080/test-org/myapp/summaries?q='id'";  console.log('executing request: '+url);  request.get(url).pipe(response);  }; 

however following error:

curl http://localhost:10010/v1/customers/1123/summary executing request: http://localhost:8080/test-org/myapp/summaries?q=' id' typeerror: cannot call method 'pipe' of undefined     @ summary (c:\apigee127\api-116\api\controllers\summary.js:17:19)     @ swaggerrouter (c:\apigee127\api-116\node_modules\a127-magic\node_modules\ swagger-tools\middleware\2.0\swagger-router.js:114:18)     @ c:\apigee127\api-116\node_modules\a127-magic\lib\middleware.js:82:9     .... 

is there npm package missing need download?

-s

you breaking scoping. function takes request have loaded var request = require('request').

change such have:

   var request = require('request');     function summary(req, res) {       request.get(url).pipe(res);    }