diff --git a/src/database.ts b/src/database.ts
index 73e5186..e883d54 100644
--- a/src/database.ts
+++ b/src/database.ts
@@ -1,9 +1,14 @@
 import { existsSync } from 'fs';
 import Knex from 'knex';
+import {Knex as KnexConfig} from './config';
 
 export async function connectDB(){
-    const config = require('./../knexfile');
     const env = process.env.NODE_ENV || 'development';
+    const config = KnexConfig.config;
+    if(env != "production" && env != "development"){
+        throw new Error("process unknown value in NODE_ENV: must be either \"development\" or \"production\"");
+    }
+    const init_need = existsSync(config[env].connection.filename);
     const knex = Knex(config[env]);
     let tries = 0;
     for(;;){
@@ -24,5 +29,9 @@ export async function connectDB(){
         }
         break;
     }
+    if(init_need){
+        const migrate = await import("../migrations/initial");
+        await migrate.up(knex);
+    }
     return knex;
 }
\ No newline at end of file