![goland tutorial goland tutorial](https://static.javatpoint.com/go/images/go-tutorial.jpg)
Through this signature, you can validate a user is authenticated or not. You may use N number of algorithms but in our project, we will use the most common and secure algorithm named hs256. One is the algorithm that is used to encrypt your jwt signature and the token type that you are creating. Basically, it is a JSON object which is converted base64 in the end and then supplied to your JWT token’s first part. The first part is the header: The header has consisted of two major parts. In general, JWT is separated into three sections and each section is separated with a dot(.). It is an industry-standard RFC 7519 method that allows you to transmit data securely between your client and server to validate if the user who is trying to access is authenticated or not. JWT is the sense JSON Web Token is a very popular open-source service that is used to pass data with the highest possible secure way in between two parties – a client and a server.
#GOLAND TUTORIAL CODE#
In this tutorial, we will use Visual Studio Code as a text editor and Postman for API testing. To complete this tutorial in the most effective way all you need to have is a configured computer, a text editor, a tool for API testing, and a basic understanding of Golang and JWT token. In this tutorial, you are going to learn about Golang Authentication. Without proper authentication, malicious users can be entered and destroy the system as well. It is the most important thing for any web application. For example, you have a blog application where anonymous users can visit and see the blogs, but the moment the user wants to do activities like, comment, or create a blog you want him to be logged in. That means based on users’ credentials, one will be able to perform certain types of action. You cannot truly say that you have completed a feature until you have tests for it.Golang Authentication is the process of recognizing the user’s identity. FileServer (staticFileDirectory ) ) // The "PathPrefix" method acts as a matcher, and matches all routes starting // with "/assets/", instead of the absolute route itself If we did not strip the prefix, the file server would look for // "./assets/assets/index.html", and yield an error For example, if we type "/assets/index.html" in our browser, the file server // will look for only "index.html" inside the directory declared above.
![goland tutorial goland tutorial](https://www.bogotobogo.com/GoLang/images/Web-Docker-Image/app-code.png)
The fileserver is wrapped in the `stripPrefix` method, because we want to // remove the "/assets/" prefix when looking for files. Dir ( "./assets/" ) // Declare the handler, that routes requests to their respective filename.
![goland tutorial goland tutorial](https://www.golanglearn.com/wp-content/uploads/2019/12/golang-cache-601x335.png)
Methods ( "GET" ) // Declare the static file directory and point it to the // directory we just made To create static assets, create a directory in your project root directory, and name it assets : Add tests to verify that our new server can serve static files Create static assets.
![goland tutorial goland tutorial](https://programmerah.com/wp-content/uploads/2020/12/2020120309564796.png)
#GOLAND TUTORIAL HOW TO#
Now that we’ve learned how to create a simple http server, we can serve static files from it for our users to interact with. These are the libraries we are going to use // Both "fmt" and "net" are part of the Go standard library import ( // "fmt" has methods for formatted I/O operations (like printing to the console) "fmt" // The "net/http" library has methods to implement HTTP clients and servers "net/http" ) func main ( ) This is the name of our package // Everything with this package name can see everything // else inside the same package, regardless of the file they are in package main For this example, we’ll call it birdpedia : The first thing you’ll want to do is create a new directory for your project. This application will require three components :
#GOLAND TUTORIAL FULL#
With this tutorial, I hope to find the middle ground and provide a single resource which describes how to make a full stack web application in Go, along with sufficient test cases. There are many resources on the internet to teach you how to build end to end web applications in Go, but for the most part they are either scattered in the form of isolated blog posts, or get into too much detail in the form of books. This is in no small part due to its speed and application performance, as well as its portability. Go is getting more and more popular as the go-to language to build web applications. Build a web application in Go (golang) Updated on December 13, 2020