Konecty Methods Middleware

Add more power to Meteor.methods with methods-middleware

--

With this package you can register methods that will be registered as native Meteor methods, is the same as use Meteor.methods to create methods but using this package you can do more like:

• Register regular methods;
• Register middlewares and only reference them when register methods to be executed before this method;
• Add methods to be executed before and after all your methods registered with registerMethod;

Installation

meteor add konecty:methods-middleware

Execution Pipeline

• Execute all before methods
• Execute middlewares registered for called method
• Execute called method
• Execute all after methods

If MIDLEWARES or BEFORE METHODS returns something different from UNDEFINED the execution stops and return this value!

Regular Methods

Register a method named sum

Meteor.registerMethod('sum', function(a, b) {
  return a + b;
});

Call registered method sum as normal methods

Meteor.call('sum', 2, 3);

Methods with Middlewares

Register a new middleware to convert arguments to number and pass to method via context

Meteor.registerMiddleware('toNumber', function() {
  var args = Array.prototype.slice.apply(arguments);

  args.forEach(function(arg, index) {
    args[index] = parseFloat(arg);
  });

  this.arguments = args;
  return
});

Register a method named sum using the middleware toNumber and get values from context

Meteor.registerMethod('sum', 'toNumber', function(a, b) {
  return this.arguments[0] + this.arguments[1];
});

Call registered method sum passing strings that will be converted by middleware

Meteor.call('sum', '2', '3');

Before and After Methods

You can register methods to be executed before and after all methods registered with registerMethod. In the above example we are tracking execution time and logging to console.

This method will be executed before every method call and will put in context the date and time from the begining of the execution

Meteor.registerBeforeMethod('startTimer', function() {
  this.startedAt = new Date();
  return
});

This method will be executed after every method call and will get the date time saved in context to calculate the execution time and log to console

Meteor.registerAfterMethod('endTimer', function(a, b) {
  var now = new Date();
  console.log('Time: ' + (now.getTime() - this.startedAt.getTime()));
  return
});