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Table of contents
1.
Introduction
2.
Prerequisites for installation of Gin 
3.
Installation of gin 
4.
Creating the First Program of Gin 
5.
Frequently Asked Questions 
5.1.
Does Go have any exceptions?  
5.2.
What are Goroutines? 
5.3.
What are some advantages of using the Go language? 
5.4.
What is the meaning of packages in the gin framework? 
5.5.
What is the GOPATH environment variable in go programming?
5.6.
Why do we use the gin framework?  
5.7.
What are the main challenges of building the web framework using Go? 
6.
Conclusion
Last Updated: Mar 27, 2024
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Installation of Gin

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Introduction

Gin is a high-performance HTTP web framework written in Golang (Go). Gin has a martini-like API and claims to be up to 40 times faster.

Gin allows you to build web applications and microservices in Go. It contains a set of commonly used functionalities (e.g., routing, middleware support, rendering, etc.) that reduce boilerplate code and make it simpler to build web applications.

Introduction image

In this blog, we will understand the installation and configuration of the gin framework by creating one example. 

Prerequisites for installation of Gin 

  1. Go language should be installed in the operating system. 
  2. Path variables should be set up in the windows/macs. 
  3. All the packages going should be installed before the Gin framework. 
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Installation of gin 

To install the Gin package, you must first install the Go and set your Go workspace.

1. You first need Go Language installed (version 1.16+ is required). Then only you can use the below Go command to install Gin. 

go get -u github.com/gin-gonic/gin


2. Import it in your code: 

import "github.com/gin-gonic/gin"


3. (Optional) Import net/http. This is a must, for example, using constants such as http StatusOK. 

import "net/http"

Creating the First Program of Gin 

1. Create a file name root.go inside any folder. 

2. Open this file into the Vs. Code.

3. Use this sample program for starting the first program. 

package main
import (
    "net/http"


    "github.com/gin-gonic/gin"
)


func main() {
    r := gin.Default()
    r.GET("/ping", func(c *gin.Context) {
        c.JSON(http.StatusOK, gin.H{
            "message": "Hello World Welcome to coding Ninjas",
        })
    })
    r.Run() // listen and serve on 0.0.0.0:8080 (for windows "localhost:8080")
}


4. Now open the localhost:8080/ping in any web browser. 

5. You can see the output if the network receives a successful ping. 

output

Frequently Asked Questions 

Does Go have any exceptions?  

No, Go Language uses a special methodology. Go's multi-value returns make it simple to report an error without overloading the return value for simple error handling. Error-values are used in Go code to denote abnormal conditions. 

What are Goroutines? 

Goroutines are procedures or functions that operate in parallel with other procedures or components. Goroutines can be compared to thin threads. When compared to the cost of a line, a goroutine is extremely inexpensive. Go applications frequently have thousands of Goroutines running at once. 

What are some advantages of using the Go language? 

Go is an attempt to establish a fresh, concurrent, garbage-collected language with advantages like quick compilation and the ability to compile a large Go program in a matter of seconds on a single machine. It offers a framework for building software that simplifies dependency analysis and does away with most of the C-style overhead, such as files and libraries. Go offers essential support for concurrent execution and communication and is fully garbage-collected.

What is the meaning of packages in the gin framework? 

Gin programs are made up of packages. The program starts running in the main box. This program uses the packages with import paths "fmt" and "math/rand."

What is the GOPATH environment variable in go programming?

The GOPATH environment variable specifies the location of the workspace. You must have to set this environment variable while developing Go code.

Why do we use the gin framework?  

We use the gin framework because gin is fast, lightweight, easy to use, has a great community, and open source. 

What are the main challenges of building the web framework using Go? 

The main challenge of building web applications with Go is that the net/http library requires plenty of outside work and boilerplate code to get functions working efficiently. Its lack of built-in web feature handling makes Go too inflexible to become the go-to language for web developers. Luckily, Go’s many framework and language options greatly solve these challenges.

Conclusion

In this blog, we discussed the introduction of the Gin framework, and then we will look at how to install the gin framework and run our first program in gin.  

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