How to configure golang in vscode

Using Visual Studio Code (referred to as vscode) for golang development can improve our development efficiency. In this article, I will introduce how to configure the golang environment in vscode.

Installing golang

Before we start, we need to install golang. The golang official website provides downloads of installation packages for various platforms. We can go to the official website [https://golang.org/dl/](https://golang.org/dl/) to download and install golang for the corresponding platform.

After the installation is complete, we need to add golang's bin directory to the system's environment variables so that we can call the golang tool through the command line. In macOS or Linux, you can edit the .bash_profile or .bashrc file and add the following content to the file:

export PATH=$PATH:/usr/local/go/bin

In Windows, you can edit the system environment variable and add the golang bin directory to the Path variable.

Install the vscode plug-in

After installing golang, we need to install the plug-in in vscode to support the development of golang.

Open vscode, press ctrl shift x to open the plug-in market, search for Go in the search box, and then find the Go plug-in and install it.

Configuration vscode

After installing the plug-in, we need to add some content to the vscode configuration to support golang development.

Press ctrl , to enter the settings interface of vscode, and then find go.formatTool (for code formatting) and go.lintTool (for code inspection) Two configuration items. Change their values ​​to the corresponding tools.

{
  "go.formatTool": "goimports",
  "go.lintTool": "golint"
}

goimports is more powerful than gofmt, it can intelligently import and remove pkg. golint is a code static analysis tool officially provided by golang, which can help us find some potential problems during the development process.

In addition, search settings.json in the settings of vscode and open the user settings file. Add the following content to the configuration file to enable automatic saving:

{
  "files.autoSave": "onFocusChange",
  "editor.formatOnSave": true,
  "[go]": {
      "editor.formatOnSave": true
  },
  "go.formatTool": "goimports",
  "go.lintTool": "golint"
}

This configuration item can help us automatically run the corresponding tools when the code is formatted and saved.

Create golang project

Now that we have completed the configuration of the vscode environment, we can start creating our first golang project.

First, we need to create a folder in vscode as the root directory of the project. Open this folder in vscode, and then run the following command in the terminal to initialize a golang project:

go mod init go-example

This command will create a new go.mod file to manage the dependencies of our project.

Next, we can create a main.go file in the project root directory and write our golang code in this file.

package main

import (
    "fmt"
)

func main() {
    fmt.Println("Hello, World!")
}

Now, we can run this program by running the following command:

go run main.go

Output:

Hello, World!

At this point, we have completed all the configuration of the golang environment in vscode step. On this basis, we can continue to improve our abilities by continuing to learn golang's syntax and development tools.

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