Build out structure

internal/postgres/database.go

@@ -0,0 +1,21 @@
+package postgres
+
+import (
+	"database/sql"
+	"fmt"
+
+	_ "github.com/lib/pq"
+)
+
+func ConnectDatabase(dbConnString string) *sql.DB {
+	db, err := sql.Open("postgres", dbConnString)
+	if err != nil {
+		panic(fmt.Sprintf("Can't connect to the database. %v", err))
+	} else {
+		fmt.Println("Database Connected.")
+	}
+	db.SetMaxOpenConns(75) // The RDS instance has a max of 75 open connections
+	db.SetMaxIdleConns(5)
+	db.SetConnMaxLifetime(300)
+	return db
+}