The importance of securing frontend client, micro-service communication and client-microservice interaction through JSON Web Tokens.
Microservices are a great tool when it comes to designing scalable and extensible architectures. They can be used to encapsulate different behaviors or responsibilities in a way that not a lot of other architecture paradigms can represent. And if you pair them with a REST-based interface, then you’re not only writing and creating a platform that can grow and scale automatically (given the right infrastructure of course), but you’re also creating a standard and easy-to-use product.
If you haven’t noticed, I’m a fan of microservices and they’re usually the pattern I go with when designing new architectures, working with Big Data on a day-to-day basis, I tend to require flexibility and scalability out of the box, and they provide that to me.
The thing not everyone considers when writing microservices though is that they require a way for you to authenticate against them. Both if you’re using a front-end client or just communicating with them through another microservice. And although there are several options out there to solve authentication, I want to cover one of the easiest, yet most powerful, alternative: JSON Web Tokens.
The basic thing you need to understand JWT-based authentication is that you’re dealing with an encrypted JSON which we’ll call “token”. This token has all the information required for the back-end system to understand who you are and if, indeed, you are who you say you are.
What is 2FA
Two-Factor Authentication (or 2FA as it often referred to) is an extra layer of security that is used to provide users an additional level of protection when securing access to an account.
Employing a 2FA mechanism is a vast improvement in security over the Singe-Factor Authentication method of simply employing a username and password. Using this method, accounts that have 2FA enabled, require the user to enter a one-time passcode that is generated by an external application. The 2FA passcode (usually a six-digit number) is required to be input into the passcode field before access is granted. The 2FA input is usually required directly after the username and password are entered by the client.
#tutorials #2fa #access #account security #authentication #authentication method #authentication token #cli #command line #cpanel #feature manager #google authenticator #one time password #otp #otp authentication #passcode #password #passwords #qr code #security #security code #security policy #security practices #single factor authentication #time-based one-time password #totp #two factor authentication #whm
Tutorial: Angular 9 Login Authentication Example – Angular 9 + SpringBoot + MySQL/PostgreSQL JWT token Authentication
JWT Role Based Authorization with Spring Boot and Angular 9 (Spring Boot Login Example)
JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. So in tutorial ‘JWT Role Based Authorization with Spring Boot and Angular 9 (Spring Boot Login Example)’, I guide you very clearly how to implement full stack example to demonstrade an jwt token based authentication flow from frontend Angular 9 to backend: SpringBoot and MySQL.
– I give you an Epic of the application, a fullstack excutive flow from frontend – Angular 9 to backend – SpringBoot with overall architecture diagram.
– I give you an architecture diagram of SpringBoot security backend.
– I give you a working flow diagram of Angular 9 JWT Application.
– I guide you step by step how to develop a Backend SpringBoot secured RestAPIs with JWT token.
– I guide you step by step how to develop an Angular 9 JWT Token Authentication application.
– Finally, I do an integrative testing from Angular 9 JWT Authentication application to SpringBoot Backend Security RestAPIs.
We will build an application, from frontend (Angular) to backend (Spring Boot), which allows users to register, login account. This application is secured with JWT (JSON Web Token) authentication and Spring Security. Then, depending on the role of current User (user, pm or admin), this system accepts what he can access:
The diagram below show how our system handles User Registration and User Login processes:
This is diagram for SpringBoot Token based authentication Security/JWT classes that are separated into 3 layers:
– Spring Security
– REST API
– SecurityContextHolder provides access to the SecurityContext.
– SecurityContext holds the Authentication and possibly request-specific security information.
– Authentication represents the principal which includes GrantedAuthority that reflects the application-wide permissions granted to a principal.
– UserDetails contains necessary information to build an Authentication object from DAOs or other source of security data.
– UserDetailsService helps to create a UserDetails from a String-based username and is usually used by AuthenticationProvider.
– JwtAuthTokenFilter (extends OncePerRequestFilter) pre-processes HTTP request, from Token, create Authentication and populate it to SecurityContext.
– JwtProvider validates, parses token String or generates token String from UserDetails.
– UsernamePasswordAuthenticationToken gets username/password from login Request and combines into an instance of Authentication interface.
– AuthenticationManager uses DaoAuthenticationProvider (with help of UserDetailsService & PasswordEncoder) to validate instance of UsernamePasswordAuthenticationToken, then returns a fully populated Authentication instance on successful authentication.
– SecurityContext is established by calling SecurityContextHolder.getContext().setAuthentication(…) with returned authentication object above.
– AuthenticationEntryPoint handles AuthenticationException.
– Access to Restful API is protected by HTTPSecurity and authorized with Method Security Expressions.
In the tutorial, “Angular 9 + Spring Boot JWT Token Based Authentication Example”, we need the Angular HTTP Interceptor to add JWT Token Based for Security authentication:
– app.component is the parent component that contains routerLink and router-outlet for routing. It also has an authority variable as the condition for displaying items on navigation bar.
– user.component, pm.component, admin.component correspond to Angular Components for User Board, PM Board, Admin Board. Each Board uses user.service to access authority data.
– register.component contains User Registration form, submission of the form will call auth.service.
– login.component contains User Login form, submission of the form will call auth.service and token-storage.service.
– user.service gets access to authority data from Server using Angular HttpClient ($http service).
– auth.service handles authentication and signup actions with Server using Angular HttpClient ($http service).
– every HTTP request by $http service will be inspected and transformed before being sent to the Server by auth-interceptor (implements HttpInterceptor).
– auth-interceptor check and get Token from token-storage.service to add the Token to Authorization Header of the HTTP Requests.
– token-storage.service manages Token inside Browser’s sessionStorage.
#angular #jwt #authentication #token #jwt-authentication #example
Tutorial: React Node Jwt Authentication (without Redux) – using LocalStorage and Axios (plus interceptor) in React application and Express + Sequelize + MySQL/PostgreSQL in Nodejs backend solution.
JSON Web Token (JWT) is an open standard (RFC 7519) that defines a compact and self-contained way for securely transmitting information between parties as a JSON object. And “How to build Reactjs Nodejs Jwt Token Based Authentication Example?” is one of the most common questions for SpringBoot Java development world. So in the tutorial, I introduce how to implement an application “Reactjs JWT SpringBoot token Authentication Example” with details step by step and 100% running sourcecode.
– I give you an Epic of the application, a fullstack excutive flow from frontend (Reactjs) to backend (Nodejs/Express) to database (MySQL/PostgreSQL) with overall architecture diagram.
– I give you a layer diagram of Reactjs Jwt Application with LocalStorage and Axios (plus Interceptor)
– I guide you detail-steps how to implement a security Jwt Token Nodejs backend.
– I guide you step by step how to develop a Reactjs Jwt Authentication application.
– Finally, I do an integrative testing from Reactjs Jwt Authentication application to jwt Nodejs Security RestAPIs.
For the Reactjs JWT Authentication tutorial, we have 2 projects:
– Backend project Nodejs/Express provides secured RestAPIs with JWT token.
– Reactjs project will request RestAPIs from Nodejs with the Jwt Token Authentication implementation.
The diagram below show how our system handles User Registration and User Login processes:
User Registration Phase:
– User uses a React.js register form to post user’s info (name, username, email, role, password) to Backend API /api/auth/signup.
– Backend will check the existing users in database and save user’s signup info to database. Finally, It will return a message (successfully or fail) to
User Login Phase:
– User posts user/password to signin to Backend RestAPI /api/auth/signin.
– Backend will check the username/password, if it is right, Backend will create and JWT string with secret then return it to Reactjs client.
After signin, user can request secured resources from backend server by adding the JWT token in Authorization Header. For each request, backend will check the JWT signature and then returns back the resources based on user’s registered authorities.
Reactjs JWT Authentication would be built with 5 main kind blocks:
Reactjs Router is a standard library for routing in React. It enables the navigation among views of various components in a React Application, allows changing the browser URL, and keeps the UI in sync with the URL.
Reactjs Components let you split the UI into independent, reusable pieces, and think about each piece in isolation.
Reactjs Service is a bridge between Reactjs Component and Backend Server, it is used to do technical logic with Backend Server (using Ajax Engine to fetch data from Backend, or using Local Storage to save user login data) and returned a response data to React.js Components
Local Storage allow to save key/value pairs in a web browser. It is a place to save the login user’s info.
Axios – (an Ajax Engine) is a promise-based HTTP client for the browser and Node. js. Axios makes it easy to send asynchronous HTTP requests to REST endpoints and perform CRUD operations.
HTTP request that matches route will be accepted by CORS Middleware before coming to Security layer.
Security layer includes:
– JWT Authentication Middleware: verify SignUp, verify token
– Authorization Middleware: check User’s roles
Main Business Logic Processing interacts with database via Sequelize and send HTTP response (token, user information, data based on roles…) to client.
We create a Reactjs JWT Authentication project as below:
It includes 8 components and 2 services and a router in app.js file.
– Home page:
– User Register page:
– Login Page:
– Profile Page:
– Use Page:
– Project Manager Page:
– Reactjs Admin page:
#reactjs #nodejs #jwt #authentication #jwt-authentication
BSETEC's Udemy clone app based on formalized teaching but with the help of electronic resources is known as E-learning.E-learning, also referred to as online learning or electronic learning, is the acquisition of knowledge which takes place through electronic technologies .
Udemy, which was founded more than a decade ago, has established itself as a global leader in the online teaching industry. People in our digital era rely on technology and devices for nearly everything, including education. When it comes to online learning, or eLearning, which is regarded as a lifesaver– capable of sustaining the educational environment even during the Covid-19 pandemic– it has evolved into a platform bursting with potential, not only for students but also for tutors, educators, and instructors. Furthermore, when compared to traditional educational techniques, the flexibility and customization given by online tutoring software like Expertplus LMS are unrivalled. As a result, it is gradually becoming an important component of the learning process, which is why eLearning is here to stay– even after the epidemic has passed, it is a huge increase in the number of eLearning applications and websites, and most businesses are choosing for Udemy Clone App instead of starting from scratch.
How can I get started with your own online tutoring company?
To use the Udemy Clone App script to establish an online tutoring marketplace similar to Udemy, bear the following factors in mind:
This year’s global pandemic has forced the fast adjustment for many organizations from in-office normality to a remote working setup at whiplash speed. The rapid adoption of remote working is not easy though—even without the pressure of COVID.
Challenges are abundant for both those with remote working experience and those without. Managers and team leaders are struggling to keep their teams motivated and efficient. Remote teams are often seen as more difficult to manage, but the tips discussed in this article can help you overcome these challenges.
Before digging deeper into time and task management, there are actually several basic steps that you need to complete in order to make remote teams effective. The first thing you want to do is making sure that team members can communicate easily and effectively, and that means establishing a way of communicating that everyone is comfortable with.
Most teams turn to Slack, but Slack is not always the best tool for the job. If your team puts emphasis on project management, for instance, using digital Kanban tools with built-in chat feature can be more effective and other communication tools such as Google Mail with Google Chat and Meet integrations are helpful. Microsoft has a similar suite of tools if you’re inclined to that choice of software.
To further empower team members, integrate a good task management platform. There is no way to keep track of everything when team members have to organize their tasks individually. The easier way to establish a baseline for remote working is by using a project or task management tool that turns tasks into blocks waiting to be managed such as Trello, Asana or Basecamp.
Lastly, encourage team members to create a productive environment that works for them. Some startups and corporations are starting to provide team members with aids to help them set up a more comfortable and functional home office. This is the kind of initiative that puts team members in the right mindset for effective remote working.
#best practices #blog #devops #best practices #devops best practices #remote working