Indexing is a way to optimise the performance of a database by minimising the number of disk accesses required when a query is processed. It is a data structure technique which is used to quickly locate and access the data in a database. Indexes are created using a few database…

Requirements and Goals To limit the number of requests per client in a particular time window. For example, a client is only allowed 100 requests per minute. Rate limit should be considered across different servers of a service. …

Load balancing is an excellent way to scale out your application and increase its performance. It distributes the incoming traffic across multiple servers configured behind it. NGINX acts as a single entry point to a distributed web application working on multiple separate servers. Redirecting traffic to a Group of servers Assumption: I’m assuming that you have NGINX…

Before getting into 2-way ssl, we need to understand what asymmetric cryptography is. Asymmetric cryptography is a process that uses a pair of related keys— one public key and one private key — to encrypt and decrypt a message. A public key is a cryptographic key that can be used…

DEFER A defer statement pushes a function call onto a stack. The stack of function calls are executed when the surrounding function returns. Syntactically, a defer statement is an ordinary function or a method call prefixed by the keyword defer. func printStrings() { 1. fmt.Println("Beginning of the function") 2. defer…

We all come around situations during programming, where we need to determine the types of variables or functions. Sometimes, there comes a use case when you don’t actually know the type of variable when the program was written(during compile time), but you need to determine it at runtime. Maybe, you…