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?
>
> 2013/1/29 Norman Khine <[email protected] <javascript:>>
>
>> 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?
>>
>> --
>> --
>> Job Board: http://jobs.nodejs.org/
>> Posting guidelines:
>> https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines
>> You received this message because you are subscribed to the Google
>> Groups "nodejs" group.
>> To post to this group, send email to [email protected]<javascript:>
>> To unsubscribe from this group, send email to
>> [email protected] <javascript:>
>> For more options, visit this group at
>> http://groups.google.com/group/nodejs?hl=en?hl=en
>>
>> ---
>> You received this message because you are subscribed to the Google Groups
>> "nodejs" group.
>> To unsubscribe from this group and stop receiving emails from it, send an
>> email to [email protected] <javascript:>.
>> For more options, visit https://groups.google.com/groups/opt_out.
>>
>>
>>
>
>
--
--
Job Board: http://jobs.nodejs.org/
Posting guidelines:
https://github.com/joyent/node/wiki/Mailing-List-Posting-Guidelines
You received this message because you are subscribed to the Google
Groups "nodejs" group.
To post to this group, send email to [email protected]
To unsubscribe from this group, send email to
[email protected]
For more options, visit this group at
http://groups.google.com/group/nodejs?hl=en?hl=en
---
You received this message because you are subscribed to the Google Groups
"nodejs" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to [email protected].
For more options, visit https://groups.google.com/groups/opt_out.
