Gin SetMode

What is Gin in Golang?

Gin is an HTTP web framework written in the Go programming language and which is high-performance in nature. We use a web framework to simplify our code through the use of some standardized codes during development. So, we use Gin when we need productivity along with very high performance. When compared to the usual Martini-type API, Gin is almost 40 times faster. 

What is Gin SetMode?

SetMode is a function we use to set the gin mode according to the input string. This input string is taken while writing the SetMode function. This function is found in the Gin package of the Go programming language. Let us see the syntax for the Gin SetMode.

func SetMode(value string)

Here, the string is the input string according to which the compiler will set the gin mode.

Examples of Gin SetMode

Now, we will see some examples to understand Gin SetMode better.

Example 1

We will start with an elementary example. In this example, we are setting the gin mode according to the environment. If the environment is “release,” we set the release mode using gin.SetMode(gin.ReleaseMode). If the environment is “debug,” we set up debug mode using gin.SetMode(gin.DebugMode).

func init() {
	readConfig()
	if config.Environment.Env == "release" {
		gin.SetMode(gin.ReleaseMode)
	}
	if config.Environment.Env == "debug" {
		gin.SetMode(gin.DebugMode)
	}
	client = elasticsearch.NewClientFromUrl(config.Es_cluster.Addr)
}

Example 2

In this example, we are defining a function for the utilities of the gin SetMode. This only is the real definition of the SetMode function. We are achieving this by the use of switch-case statements. The function's parameter is taken as the switch, and then different cases are written based on different values of the switch(that is, mode). If the mode is “release,” then gin.SetMode(gin.ReleaseMode). If the mode is “debug,” gin.SetMode(gin.DebugMode). Suppose the mode is “test” gin.SetMode(gin.TestMode). If the mode is other than any of the three, the function will give panic("mode unavailable. (debug, release, test)").

func SetMode(mode string) {
	switch mode {
	case "release":
		gin.SetMode(gin.ReleaseMode)
	case "debug":
		gin.SetMode(gin.DebugMode)
	case "test":
		gin.SetMode(gin.TestMode)
	default:
		panic("mode unavailable. (debug, release, test)")
	}
}

Example 3

We write the above function in one more way. We use a switch case on a string value in this example, so the mode name equals the value. If it is DevMode, then gin.SetMode(gin.DebugMode).If it is ProdMode, then gin.SetMode(gin.ReleaseMode). If it is TestMode, then gin.SetMode(gin.TestMode). If none of the above three, the mode is unknown, so the function gives panic("mode unknown: " + value).

func SetMode(value string) {
	switch value {
	case DevMode:
		gin.SetMode(gin.DebugMode)
	case ProdMode:
		gin.SetMode(gin.ReleaseMode)
	case TestMode:
		gin.SetMode(gin.TestMode)
	default:
		panic("mode unknown: " + value)
	}
	modeName = value
}

Different modes in Gin

There are three different modes that we can set using the gin SetMode function. Those modes are Release Mode, Debug Mode, and Test Mode. We will read about each one of them.

• Release Mode: In the normal production environment, we require the release mode. So, we use it for setting up the mode to the production mode.
   
• Debug Mode: In the debug mode, Gin prints some extra debug information. So, while development, we use "debug" mode as the default mode.
   
• Test Mode: We use the test mode in Gin's unit tests to toggle the debug mode (and the additional logging) on and off. In other words, we use it to control the log print.

Frequently Asked Questions

What is Go?

Go is a trendy procedural programming language developed in Google by Robert Griesemer, Rob Pike, and Ken Thompson in 2007.

What is Gin?

Gin is an HTTP web framework written in the Go programming language and which is high-performance in nature.

What is Gin SetMode?

SetMode is a function we use to set the gin mode according to the input string. This input string is taken while writing the SetMode function. 

How to set gin mode to release mode?

To set the gin mode to the release mode, we use the string “gin.ReleaseMode” in the SetMode function, like this, gin.SetMode(gin.ReleaseMode).

How to set gin mode to debug mode?

To set the gin mode to the debug mode, we use the string “gin.DebugMode” in the SetMode function, like this, gin.SetMode(gin.DebugMode).

Conclusion

In this article, you all learned about the Gin SetMode. We started with knowing what Go is, then we learned about Gin. After this, we learned what Gin SetMode is. Then, we saw some examples and the different modes available through the Gin SetMode. Check out our articles if you think this blog has helped you enhance your knowledge and want to learn more. Visit our website to read more such blogs. 

1. Introduction to Go 
2. Functions, Packages, Recursion & Closure  
3. Go HTTP Server  
4. Go Interface Type
5. Go | Full Library  
    

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