Angular - Services

Design Patterns in angular

Services->constructor DP
Factory->factory DP
Provider->Factory , can be configured


Factory 

mainApp.factory('ProductService', function(){

var obj={}

obj.save=function(Product)

{

  this.contacts.push(Product);

  

}

};

return obj;

Provider

whenever we use Provider, it should contain $get() method

it should return an object

//Defining provider

App.provider('configurable',function(){
var roi=2;
this.setRoi=function(rate)
{
roi=rate;
}
this.$get=function()
{
return{
rate:roi,getInterest:function(p,t)
{
var i= p* this.rate*t/200;
return i ;
}
};
};
};
);