Introduction
In this post, we will talk about Flyweight design pattern. We will see when one should use this design pattern and how we can implement it. In below example, we will use C# language to implement the example of it.
Type: Structural design pattern
Read MoreRedis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. Lets install redis server in docker. Beauty of docker is that without installation of actual software, you can install it in docker and can access those application. Lets create a simple example and divide it in two parts.
Read MoreLets follow below steps to create simple Grpc service in C#. This service will have a simple method called “Reverse” which will take one string parameter and return reverse of that string. This example contains proto file also. I would recommend you to please go through this post if you don’t know about protobuf. This example is divided in two parts. 1. Service and 2. Consumer.
Read MoreProtobuf is used to serialized data structure efficiently. It is faster, smaller & simpler than XML. Protobuf is useful in developing programs to communicate with each other over a wire and it is created by Google. It help us in creating micro services. Protobuf is not an object oriented language so it does not support feature like inheritance. We need to define our data structure once and then we need to use auto generated code which will be used for read and write data to different sources. Protobuf is available in all programming languages like Go, python, C#, Java etc.
Read MoreIn web application, Security is essential. User wants to use resources of our system. For that, we need to authenticate user. Authentication means need to check whether user is eligible to use system or not. Generally, we do authentication via username (in form of unique user name or email id) and password. If user is authenticated successfully, then we allow that user to use resources of a system. But what about subsequent requests? If user has been already identified then s/he does not need to provide credentials each time. Once authenticated, for particular period s/he can use system’s resources. In traditional approach, we used to save Username in Session. This session period is configurable it means session is valid for 15 minutes or 20 minutes. This session is stored in server’s memory. After expiry of session, user needs to login again.
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