I'm attempting to use Node.js and Q.js to handle promises but appear to be
losing the first chunk(s) of data from http requests. My code is based on
Q.js sample code so I can't see what I'm doing wrong.
Sample code below. Any pointers to what I'm doing wrong?
> var http = require('http');
> var url = require("url");
> var Q = require ( 'q' );
> var os = require("os");
> var httpGet = function (opts) {
> var deferred = Q.defer();
> try {
> http.get(opts, deferred.resolve).on("error", deferred.reject);
> } catch (error) {deferred.reject(error);}
> return deferred.promise;
> };
> var loadBody = function (res) {
> var deferred = Q.defer();
> var body = "";
> res.on("data", function (chunk) {
> body += chunk;
> });
> res.on("end", function () {
> deferred.resolve(body);
> });
> res.on("close", deferred.reject);
> return deferred.promise;
> };
> var getBody = function (uri) {
> return httpGet(url.parse(uri)).then(function (res) {
> if (res.statusCode.toString()[0] === "3") {
> return httpGet(url.parse(res.headers["location"]));
> } else {
> return res;
> }
> }).then(loadBody);
> };
> http.createServer ( function ( req, res ) {
> console.log ( "createServer response" );
> getBody ( "http://www.google.com"; ).then(function(data){
> console.log ( "getBody promise" );
> res.writeHead ( 200, {'Content-Type': 'text/plain'} );
> res.write ( data );
> res.end ( );
> });
>
> }).listen ( 8081, os.hostname() );
>
> console.log('Server running');
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