Here, We will learn how to get environment variable value in go. We can do it by using Getenv() function in os package in go golang.
Function prototype:
func Getenv(str string) string Paramters: str: Environment variable name
Return value:
Getenv() function in os package returns the value of the environment variable named by the str. If the environment variable is not set then it return empty.
Example with code:
package main
import (
"fmt"
"os"
"log"
)
func main() {
err := os.Setenv("NAME", "Jon")
if err != nil {
log.Fatal(err)
}
err = os.Setenv("ADDR", "USA")
if err != nil {
log.Fatal(err)
}
name := os.Getenv("NAME")
addr := os.Getenv("ADDR")
fmt.Printf("Name: %s, Addr: %s\n", name, addr)
}
Output:
Name: Jon, Addr: USA
To learn more about golang, Please refer given below link:
https://techieindoor.com/go-lang-tutorial/
References:
https://golang.org/doc/
https://golang.org/pkg/