first issue

postgres/postgres.go

@@ -0,0 +1,37 @@
+package postgres
+
+import (
+	"database/sql"
+	"fmt"
+
+	_ "github.com/lib/pq"
+)
+
+const (
+	DB_HOST     = "localhost"
+	DB_PORT     = "5432"
+	DB_USER     = "graphql"
+	DB_PASSWORD = "graphql"
+	DB_NAME     = "graphql"
+)
+
+var (
+	DB *sql.DB
+)
+
+func checkErr(err error, DB *sql.DB) {
+	if err != nil {
+		panic(err)
+	}
+}
+
+func DBConnect() {
+	dbinfo := fmt.Sprintf("host=%s port=%s user=%s password=%s dbname=%s sslmode=disable",
+		DB_HOST, DB_PORT, DB_USER, DB_PASSWORD, DB_NAME)
+	var err error
+	DB, err = sql.Open("postgres", dbinfo)
+	checkErr(err, DB)
+}
+func DBClose() {
+	DB.Close()
+}