You could send variables in map. For example:
package main
import (
"bytes"
"fmt"
"text/template"
)
func main() {
t, _ := template.New("hi").Parse("Hi {{.name}}")
var doc bytes.Buffer
t.Execute(&doc, map[string]string{"name": "Peter"})
fmt.Println(doc.String()) //Hi Peter
}
solved Html template use on golang