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edm00se/config_index.js Secret

Last active Apr 22, 2016
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Sample components of a gnericized version of edm00se/express-domino-nsf app on GitHub, for inclusion in my blog series (post 1/3). https://github.com/edm00se/express-domino-nsf
/* file: /config/index.js */
var something = process.env.SOME_INFO || 'someVal'; // env var of SOME_INFO, defaulting to 'someVal'
module.exports = {
someInfo: somthing
};
var srvNm = process.env.DOM_SRV || '';
var dbNm = process.env.DOM_DB || 'SomeApp.nsf';
module.exports = {
db: {server:srvNm,database:dbNm}
};
var util = require('../util');
module.exports = function (app) {
app.get("/beers", function(req, res, next){
var resp = {};
util.getView('beers',function(err,data){
if(err){
resp = {
"error": true,
"message": err
};
} else {
resp = {
"error": false,
"data": data
};
}
res.jsonp(resp);
});
});
};
var domino = require('domino-nsf'),
config = require('../config/db.js'),
db = config.db;
// initialize Session
function initSession(cb){
domino.initSession();
cb();
};
// terminate Session
function closeSession(){
domino.termSession();
};
// get Document contents by UNID
function getDocumentByUnid(un,cb){
initSession(function(){
domino.getDocumentAsync(db,un,function(err,doc){
if(!err){
cb(null,doc);
}else{
cb(err);
console.log('Error: '+err);
}
closeSession();
});
});
};
// get View contents by View name
function getViewContents(vw,cb){
var vwOb = {view:vw,category:""};
initSession(function(){
domino.getViewAsync(db,vwOb,function(err,view) {
if(!err){
cb(null,view);
}else{
cb(err);
console.log('Error: '+err);
}
closeSession();
});
});
};
// exporting what we care about in a structured format
module.exports = {
getView: getViewContents,
getDoc: getDocumentByUnid
};
var path = require('path');
var jarFilePath = path.join(__dirname, '../lib', 'jt400.jar');
var driverNm = 'com.ibm.as400.access.AS400JDBCDriver';
var addr = process.env.URL || 'as400://ibmi.fullyqualifiedname.com';
var uName = process.env.ISERIES_USER_NAME || 'user';
var pWord = process.env.ISERIES_PASSWORD || 'secret';
// a config object w/ specifics for the connection
module.exports = {
libpath: jarFilePath,
drivername: driverNm,
url: addr,
user: uName,
password: pWord,
};
var util = require('../util');
module.exports = function (app) {
app.get("/beers", function(req, res, next){
var resp = {};
util.query("SELECT * FROM beers", function(err, data){
if(err){
resp = {
"error": true,
"message": err
};
} else {
resp = {
"error": false,
"data": data
};
}
});
res.jsonp(resp);
});
};
var jdbc = new ( require('jdbc-pro') );
var dbConf = require('../config/db.js');
// handler to initialize the connection
function initCon(cb){
jdbc.initialize(dbConf, function(err, res) {
if (err) {
console.log(err);
} else {
console.log("Connection initialized successfully!");
cb(null);
}
});
};
// handler to close the connection
function closeCon(err) {
if(err) {
console.log(err);
} else {
console.log("Connection closed successfully!");
}
};
// wrapping the func, passing results or error via callback
function getQueryResults(sql,cb){
initCon(function(err){
if(err){
console.log(err);
} else {
jdbc.open(function(err, conn) {
if (conn) {
// perform passed SQL statement, SELECT statement
jdbc.executeQuery(sql, function(err, results) {
if(err){
console.log(err);
cb(err,null);
} else {
cb(null,results);
}
closeCon(); // lastly, close the connection
});
}
});
}
});
};
// separately wrapped func for UPDATE or INSERT
function getUpdateResults(sql,cb){
initCon(function(err){
jdbc.open(function(err, conn) {
if (conn) {
// perform passed SQL statement, INSERT or UPDATE
jdbc.executeUpdate(sql, function(err, results) {
if(err){
console.log(err);
cb(err,null);
} else {
cb(null,results);
}
closeCon();
});
}
});
});
};
// exporting what we care about in a structured format
module.exports = {
query: getQueryResults,
update: getUpdateResults
};
<!-- file: /public/readme.html -->
<!doctype html>
<html>
<head>
<title>Instructions</title>
</head>
<body>
<h3>Instructions for Use</h3>
<p>TODO: Describe your API endpoint's behavior and how to interact with it.</p>
</body>
</html>
/* file: /routes/index.js */
var path = require('path')
// export a function that accepts `app` as a param
module.exports = function (app) {
app.get('/', function (req, res, next) {
res.sendFile(path.join(__dirname, '../public', 'readme.html'));
});
// this should be in a `beers.js` file, pulled in by require('./beers')
app.get('/beers', function(req, res, next){
res.send('beers!');
});
// require('./breweries')(app);
// require('./vineyards')(app);
// add new lines for each other endpoint defined in its own file for simplicity
};
/* file: /server.js */
var express = require('express'),
app = express(),
os = require('os');
//enables and instantiates express-toobusy, which keeps it from melting under HIGH pressure
app.use(require('express-toobusy')());
require("./routes")(app);
//establish simple text catch for Error 500
app.use(function(err, req, res, next){
console.error(err.stack);
res.status(500).send("<h1>Error 500</h1>\nSomething broke! The error has been logged to the server console.");
});
//set to listen on environment port or port 3333, if no detected env var port
var portToListenOn = process.env.PORT || 3333;
app.listen(portToListenOn, function(){
console.log("NodeJS serving content from "+__dirname+" on "+os.hostname()+":"+portToListenOn);
});
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