Reading a file from a http repository

[sriharshamohan-]

I am able to read contents of a file locally in Apigee using nodejs. Could anyone share how to read a file from a repository using Apigee Node JS proxy ?

I am using below code but getting an error as below though the file is present and able to curl.

Error: ENOENT: http://<link>/abc.json

'use strict';
const fs = require('fs');
var http = require('http');
var url = require('url');
var path = require("path");
var fieldvalues = {};
http.createServer(function (req, res) {
var pathname = "http://<link>/abc.json";
console.log("pathname =" +pathname);
// read file from file system
fs.readFile(pathname, function(err, data){
if(err){
//res.statusCode = 500;
console.log("Error is "+err);
//res.end("Error getting the file: ${err}"); }
else {
// if the file is found, set Content-type and send data
res.setHeader('Content-type', 'application/json' );
// res.end(data);
//res.end(JSON.stringify(data, null, 2) + '\n');
var filedata= JSON.parse(data);
res.end(filedata);
console.log(JSON.stringify(filedata, null, 2) + '\n'); } })
// });
}).listen(parseInt(9000));
console.log("Server listening on port 9000");

[DChiesa]

You cannot use fs.readFile() for reading files from remote HTTP endpoints. To read from an http endpoint, use the request module.

var request=require('request'); // v2.71.0 when used within Apigee
var url = "https://example.com/foo/bar";
request({url:url}, function(error, response, body) {
  if (error) {
    console.log('error:', error);
  }
  var fileData = JSON.parse(body); 
  ...
});

The latest version of request that you can use within Apigee Edge is 2.71.0.

update your dependencies in package.json like so:

"request":"2.71.0"

For more, see here: https://community.apigee.com/answers/51554/view.html

[sriharshamohan-]

@Dino - I was able to install the request module in trial account and invoke the remote file.However,unable to install request module in licensed Org account using the link

- https://apidocs.apigee.com/management/apis/post/organizations/%7Borg_name%7D/apis/%7Bapi_name%7D/rev...

I am getting a 401 Unauthorised error though the credentials are correct.Is it not allowed for licensed Org accounts to install the npm modules ?