Control-flow libraries are the first line of defense between your application code and third-party modules. Stepup for instance, my control-flow library of choice, has such protection: https://github.com/CrabDude/stepup
Cheers, Adam On Tue, Oct 1, 2013 at 1:23 AM, Alex Kocharin <[email protected]> wrote: > > It's rather simple to create a wrapper that counts a number of times > callback is called and throws when this number isn't 1. And call it like > this: > > fs.readFile('something', wrap(callback)); > > But you'll have to do it every time, so I don't think it's going to be > used widely. > > > On Tuesday, October 1, 2013 10:28:34 AM UTC+4, jeevan kk wrote: >> >> Mark, >> >> I agree with you that in some cases its meaningful. But I am into a huge >> project where we use a large number of third party modules. Its not >> practical to keep a flag everywhere and check it. I was searching for some >> general approach which we can follow. We can't find the faulty module until >> it lands in that edge case. And there are cases where we can ignore the >> callback getting called multiple times. >> >> On Tuesday, 1 October 2013 11:32:18 UTC+5:30, Mark Hahn wrote: >>> >>> The http module calls back every request. Sometimes multiple callbacks >>> make sense. Are the modules you are having trouble with supposed to only >>> return once? If so then post a bug report. >>> >>> I don't know what else you could do. I guess you could set a flag when >>> you send the callback function, clear it the first callback, and then >>> ignore the callback after that. I would never do this because I would be >>> blindly ignoring a problem. >>> >>> >>> On Mon, Sep 30, 2013 at 10:17 PM, jeevan kk <[email protected]> wrote: >>> >>>> I am using different 3rd party modules in my project. I have seen, in >>>> some odd situations the 3rd party module which I am using is calling the >>>> callback multiple times. >>>> >>>> Is there any general approach which I can follow so avoid such >>>> situations. >>>> >>>> -- >>>> -- >>>> Job Board: http://jobs.nodejs.org/ >>>> Posting guidelines: https://github.com/joyent/**node/wiki/Mailing-List- >>>> **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<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<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. > -- Better a little with righteousness than much gain with injustice. Proverbs 16:8 -- -- 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.
