Vault Client API approle login

main.go

package main

import (
	"fmt"
	"log"

	"github.com/hashicorp/vault/api"
)

var client *api.Client

func main() {
	conf := api.DefaultConfig()
	var err error
	client, err = api.NewClient(conf)
	client.SetAddress("http://localhost:8200")
	myRoleID := "287c396a-34f0-9547-a099-98b5b6342866"
	mySecretID := "ffa85275-4db8-342e-b5cc-134817e1ea11"

	resp, err := client.Logical().Write("auth/approle/login", map[string]interface{}{
		"role_id":   myRoleID,
		"secret_id": mySecretID,
	})
	if err != nil {
		log.Fatal(err)
	}
	fmt.Printf("Vault token: %s\n", resp.Auth.ClientToken)
}