Golang is a strictly typed language. It tells you hw to write clean code and it takes care of formatting.
Unlike many languages where formatting style is opinionated, in Golang it is defined by design.
Formatting
Golang CLI command fmt is used to format the file or files.
Format 1 file
Open the terminal in the golang project.
Run the below command.
go fmt main.go
Format all the files in the folder
Use ./{folder name} notation to give a particular folder.
go fmt ./domain
To format the root folder or where terminal is opened.
go fmt .
OR
go fmt ./
OR
go fmt
If you don't pass any argument then it formats the current directory.
Format all the folders recursively
Use ./... special syntax to format the complete project.
go fmt ./...
Final Words
If you're using git then create a makefile or a bash file to format it before committing the code.