Method Chaining in Go (Golang) - Welcome To Golang By Example

For method chaining to be possible, the methods in the chain should return the receiver. Returning the receiver for the last method in the chain is optional.

Let’s see an example of method chaining.

package main
import "fmt"
type employee struct {
name string
age int
salary int
}
func (e employee) printName() employee {
fmt.Printf("Name: %s\n", e.name)
return e
}
func (e employee) printAge() employee {
fmt.Printf("Age: %d\n", e.age)
return e
}
func (e employee) printSalary() {
fmt.Printf("Salary: %d\n", e.salary)
}
func main() {
emp := employee{name: "Sam", age: 31, salary: 2000}
emp.printName().printAge().printSalary()
}

Output

Name: Sam
Age: 31
Salary: 2000

golang