Go Standard Library Cookbook

How to do it...

1. Open the console and create the folder chapter07/recipe07.
2. Navigate to the directory.
3. Create the headers.go file with the following content:

        package main        import (          "fmt"          "net/http"        )        func main() {          header := http.Header{}          // Using the header as slice          header.Set("Auth-X", "abcdef1234")          header.Add("Auth-X", "defghijkl")          fmt.Println(header)          // retrieving slice of values in header          resSlice := header["Auth-X"]          fmt.Println(resSlice)          // get the first value          resFirst := header.Get("Auth-X")          fmt.Println(resFirst)          // replace all existing values with          // this one          header.Set("Auth-X", "newvalue")          fmt.Println(header)          // Remove header          header.Del("Auth-X")          fmt.Println(header)        }

4. Execute the code by running go run headers.go in the main Terminal. ...