Sending a JSON file to an iOS and Web App User -

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i'm trying have node.js server send json produced running jar user on ios or in browser on web app. i'm using express , node.js aws, i'm not sure how send/receive json files server.

var express = require('express'); var app = express(); var server = app.listen(80, function(){     console.log('server listening on port 80'); });

this starts server in aws port 80. how user send json file port (ip-address:80)? works fine given web interface user can directly upload files.

and how server send file user? code runs jar , produces json export:

var child = exec('java -jar java/executable.jar file',   function (error, stdout, stderr){     // prints output     console.log(stdout);     if(error !== null){       // prints error       console.log("error -> "+error);     } });  module.exports = child;


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