Passing arguments to require when loading module

Question

Is it possible to pass arguments when loading a module using require   I have module  login js which provides login functionality  It requires a database connection  and I want the same database connection to be used in all my modules  Now I export a function login setDatabase      which lets me specify a database connection  and that works just fine  But I would rather pass the database and any other requirements when I load the module   var db       var login   require    login js   db     I am pretty new with NodeJS and usually develop using Java and the Spring Framework  so yes    this is a constructor injection    Is it possible to do something like the code I provided above

User · Answer

Yes  In your login module  just export a single function that takes the db as its argument  For example   module exports   function db

User · Answer

I m not sure if this will still be useful to people  but with ES6 I have a way to do it that I find clean and useful   class MyClass      constructor   arg1  arg2  arg3     myFunction1            myFunction2            myFunction3             module exports     arg1  arg2  arg3     gt    return new MyClass  arg1 arg2 arg3       And then you get your expected behaviour    var MyClass   require   MyClass js    arg1  arg2  arg3

User · Answer

Based on your comments in this answer  I do what you re trying to do like this   module exports   function  app  db        var module            module auth   function  req  res               This will be available  outside              Authy stuff that can be used outside                   Other stuff        module pickle   function cucumber  herbs  vinegar               This will be available  outside              Pickling stuff                function jarThemPickles pickle  jar               This will be NOT available  outside              Pickling stuff             return pickleJar              return module       I structure pretty much all my modules like that   Seems to work well for me

[node.js] Passing arguments to require (when loading module)

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