🔥 Truffle Dashboard: Stop Copy & Pasting Your Private Keys. Hello guys, I recorded a video about the Mainnet deployment preparation for the smartcontracts. Yeah, everyone has some approach for themself which is the most secure approach for themselves. I think that sharing of responsibility principle is a good approach…

NestJS - A progressive Node.js framework NestJS is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built…nestjs.com We can say about the guards that they are the security management layers like Java/Spring Security. We can easily manage all of the authentication and the authorization mechanism, role-based access managements by using guards. There are many different ways of doing it in Node.js, but Guards are developed specially for…

NestJS - A progressive Node.js framework NestJS is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built…nestjs.com We create a pipe as a class with the @Injectable() decorator which should implement the PipeTransform interface. In general we use the pipes for the following cases: Transformation: to transform input data to the desired form(i.e., string to JSON object, integer to string..)

NestJS - A progressive Node.js framework NestJS is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built…nestjs.com NestJS comes with really strong exception management structures called Exception Filters. With this built-in exception management layer, we can handle all of the unhandled exceptions across the NestJS application. Therefore, if you don’t handle any exception in your code, it is caught by a built-in global exception filter, which handles…

NestJS - A progressive Node.js framework NestJS is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built…nestjs.com Interceptors which have useful features that are inspired by Aspect Oriented Programming (AOP)[1] design pattern are classes annotated the @Injectable decorator and should implement the NestInterceptor interface. We can figure the usage of interceptors as shown below.

NestJS - A progressive Node.js framework NestJS is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built…nestjs.com We can explain the middleware as a layer of code which is called before the route handler. We are able to access request object(req) and response object(res) and next function in the application’s request-response cycle by using middleware functions and by default NestJS middleware functions are equivalent to express middleware…

NestJS - A progressive Node.js framework NestJS is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built…nestjs.com In NestJS, providers have a vital importance. In general we can use the following classes as a provider: Services: contains domain (business) logic. Repositories: contains database CRUD operations Factories Helpers and so on… objects can be used as a provider in NestJS application. The main key features of providers are…

NestJS - A progressive Node.js framework NestJS is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built…nestjs.com Modules are another important one of the NestJS building blocks. We can isolate our component by using module classes. When we create new object in our application, NestJS don’t know it at first. To initialise and use it in our application, we need to register our objects to NestJS by…

NestJS - A progressive Node.js framework NestJS is a framework for building efficient, scalable Node.js web applications. It uses modern JavaScript, is built…nestjs.com NestJS manages an application’s and it’s all of elements’ lifecycle. It provides lifecycle hooks that gives visibility into key lifecycle events and the ability to run registered code on our module, injectable or controller when they occur. We can say that NestJS divides the overall lifecycle into three phases: initialising…