Conventions used

There are a number of text conventions used throughout this book.

Code in text: Indicates code words in text, database table names, folder names, filenames, file extensions, pathnames, dummy URLs, user input, and Twitter handles. Here is an example: “We call next.ServerHTTP(http.ResponseWriter, *http.Request) to continue and indicate successful handling of a request.”

A block of code is set as follows:

go func() { 
  ... 
  s.SetAttributes(attribute.String(“sleep”, “done”)) 
  s.SetAttributes(attribute.String(“go func”, “1”)) 
  ... 
}() 

Any command-line input or output is written as follows:

[INFO] 2021/11/26 21:11 This is an info message, with colors (if the output is terminal) 

Bold: Indicates a new term, an important word, or words that you see onscreen. For instance, words in menus or dialog boxes appear in bold. Here is an example: “You will get a Login unsuccessful message.”

Tips or important notes

Appear like this.