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POControl asynchronous execution flow in node.js/meteor
 

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  1. POControl asynchronous execution flow in node.js/meteor
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    <p>I am using a meteorite application with 'http-methods' package from atmosphere and 'node-sqlite3' package from npm. Consider the flowing code. </p> <pre><code>var results = null; HTTP.methods({ 'list': function(data) { var sqlite3 = Npm.require('sqlite3').verbose(); var db = new sqlite3.Database(':memory:'); db.serialize(function() { db.run("CREATE TABLE lorem (info TEXT)"); var stmt = db.prepare("INSERT INTO lorem VALUES (?)"); for (var i = 0; i &lt; 10; i++) { stmt.run("Ipsum " + i); } stmt.finalize(); db.all("SELECT rowid AS id, info FROM lorem", function(err, rows) { console.log(rows); results = rows; }); }); console.log("Closing DB"); db.close(); console.log("Sending back response"); console.log(results); return results; } }); </code></pre> <p>Here using domain/list the above function is invoked. I want to return the resultSet as response to the request. But instead of it 'null' is been returned. The output from the console is given below. </p> <pre><code>I20131229-23:50:20.092(1)? Closing DB I20131229-23:50:20.113(1)? Sending back response I20131229-23:50:20.117(1)? null I20131229-23:50:20.172(1)? [ { id: 1, info: 'Ipsum 0' }, I20131229-23:50:20.181(1)? { id: 2, info: 'Ipsum 1' }, I20131229-23:50:20.182(1)? { id: 3, info: 'Ipsum 2' }, I20131229-23:50:20.183(1)? { id: 4, info: 'Ipsum 3' }, I20131229-23:50:20.199(1)? { id: 5, info: 'Ipsum 4' }, I20131229-23:50:20.199(1)? { id: 6, info: 'Ipsum 5' }, I20131229-23:50:20.199(1)? { id: 7, info: 'Ipsum 6' }, I20131229-23:50:20.202(1)? { id: 8, info: 'Ipsum 7' }, I20131229-23:50:20.202(1)? { id: 9, info: 'Ipsum 8' }, I20131229-23:50:20.203(1)? { id: 10, info: 'Ipsum 9' } ] </code></pre> <p>Please suggest a appropriate solution to the problem. </p> <p>Note: The code given is a synonymous of the actual one. Please let me know if you want to know more details. </p>
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