I am currently working on an application that utilizes Node, Express, Angular, and Mongoose. To retrieve a large dataset from MongoDB, I am attempting to stream the data. However, I encounter an issue after loading the initial chunk of data where I receive the error message: "Error: Can't set headers after they are sent." Below is a snippet of my code:
routes.js
module.exports = function(app) {
var Org = require('./models/org');
var JSONStream = require('JSONStream');
var stringify = require('stringify');
app.get('/api/orgs', function(req, res){
res.set('Content-Type', 'application/json');
Org.find().stream().pipe(JSONStream.stringify()).pipe(res);
console.log('STATUS: ' + res.statusCode);
})
};
models/org.js
var mongoose = require('mongoose');
var Schema = mongoose.Schema;
module.exports = mongoose.model('Org', new Schema({
ein : {type : Number},
}), 'irs9902013');