On Tuesday, January 29, 2013 7:12:45 PM UTC+1, Norman Khine wrote:
>
>
>
> On Tuesday, January 29, 2013 7:00:53 PM UTC+1, José F. Romaniello wrote:
>>
>> You can use
>> fs.existsSync<http://nodejs.org/api/fs.html#fs_fs_existssync_path>but I have
>> read in this list several times it is discouraged, what happen
>> if the file is deleted from disk *after* you ask if it exists and *before
>> * you require it.
>>
>
> yes i changed to fs.existsSync
>
>> You will be better with a try/catch.
>>
>
> ok i understand, but how do i deal with the app.set('chapters',
> require(__dirname + '/data/chapters.json')); if the file is not there in
> the express route?
>
ok i got it
app.set('translation', require(__dirname +
'/public/locales/dev/translation.json'));
try {
app.set('chapters', require(__dirname + '/data/chapters.json'));
} catch(err) {
dumpError(err);
}
something like this?
>
>>
>> 2013/1/29 Norman Khine <[email protected]>
>>
>>> i have this code:
>>>
>>> var blade = require('blade')
>>> ,express = require('express')
>>> ,http = require('http')
>>> ,https = require('https')
>>> ,fs = require('fs'),json;
>>>
>>> var GOOGLE_API_KEY = process.env.GOOGLE_API_KEY;
>>>
>>> var TABLE_ID = "1epTUiUlv5NQK5x4sgdy1K47ACDTpHH60hbng1qw";
>>> //var TABLE_ID ="1obpi0bmSDILX1cIQcVRNi1lUkm2K5xBFztmRFiM"
>>>
>>> var GOOGLE_PATH =
>>> "/fusiontables/v1/query?sql=SELECT%20*%20FROM%20"+TABLE_ID+"&key="+GOOGLE_API_KEY;
>>> var GOOGLE_DRIVE_PATH =
>>> "/drive/v2/files/"+TABLE_ID+"?key="+GOOGLE_API_KEY;
>>>
>>> var options = {
>>> hostname: 'www.googleapis.com'
>>> ,port: 443
>>> ,method: 'GET'
>>> };
>>>
>>> function TZMNetwork(fileId) {
>>> if (fs.existsSync("data/chapters.json")) {
>>> // ... put code if "data/chapters.json" has changed!
>>> console.log('OK');
>>> } else {
>>> options["path"] = GOOGLE_PATH;
>>>
>>> var file = fs.createWriteStream("data/chapters.json");
>>> var req = https.request(options, function(res) {
>>> res.on('data', function(data) {
>>> file.write(data);
>>> }).on('end', function() {
>>> file.end();
>>> console.log("chapters.json created");
>>> });
>>> });
>>> req.end();
>>>
>>> req.on('error', function(e) {
>>> console.error(e);
>>> });
>>> }
>>> }
>>>
>>> var app = express();
>>> app.use(blade.middleware(__dirname + '/views') ); //for client-side
>>> templates
>>> app.use(express.favicon(__dirname + '/public/images/favicon.ico'));
>>> app.use(express.static(__dirname + '/public') ); //maybe we have some
>>> static files
>>> app.set('views', __dirname + '/views'); //tells Express where our views
>>> are stored
>>> app.set('translation', require(__dirname +
>>> '/public/locales/dev/translation.json'));
>>> app.set('chapters', require(__dirname + '/data/chapters.json'));
>>> app.set('view engine', 'blade'); //Yes! Blade works with Express out of
>>> the box!
>>> app.get('/', function(req, res, next) {
>>> TZMNetwork(TABLE_ID);
>>> res.render('index');
>>> });
>>> app.listen(29080);
>>> console.log('Server running at http://127.0.0.1:29080/');
>>>
>>>
>>> How would you ensure that if /data/chapters.json does not exists, for
>>> example when the app is run for the first time, the app.set('chapters',
>>> require(__dirname + '/data/chapters.json')); is by-passed?
>>>
>>> Is there a better way to do this?
>>>
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>>>
>>
>>
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