MissingDriverError while using postgres - postgresql

Question

Errors
Error during migration generation:
MissingDriverError: Wrong driver: "undefined" given. Supported drivers are: "aurora-data-api", "aurora-data-api-pg", "better-sqlite3", "capacitor", "cockroachdb", "cordova", "expo", "mariadb", "mongodb", "mssql", "mysql", "nativescript", "oracle", "postgres", "react-native", "sap", "sqlite", "sqljs".
at MissingDriverError.TypeORMError [as constructor] (D:\Projects\Mark1\api2\src\error\TypeORMError.ts:7:9)
at new MissingDriverError (D:\Projects\Mark1\api2\src\error\MissingDriverError.ts:8:9)
at DriverFactory.create (D:\Projects\Mark1\api2\src\driver\DriverFactory.ts:70:23)
at new Connection (D:\Projects\Mark1\api2\src\connection\Connection.ts:122:43)
at ConnectionManager.create (D:\Projects\Mark1\api2\src\connection\ConnectionManager.ts:61:28)
at D:\Projects\Mark1\api2\src\globals.ts:77:35
at step (D:\Projects\Mark1\api2\node_modules\tslib\tslib.js:143:27)
at Object.next (D:\Projects\Mark1\api2\node_modules\tslib\tslib.js:124:57)
at D:\Projects\Mark1\api2\node_modules\tslib\tslib.js:117:75
at new Promise ()
ormConfig.ts
import { TypeOrmModuleOptions } from '#nestjs/typeorm';
import { join } from 'path';
require('dotenv').config();
class ConfigService {
constructor(private env: { [k: string]: string | undefined }) { }
private getValue(key: string, throwOnMissing = true): string {
const value = this.env[key];
if (!value && throwOnMissing) {
throw new Error(`config error - missing env.${key}`);
}
return value;
}
public ensureValues(keys: string[]) {
keys.forEach(k => this.getValue(k, true));
return this;
}
public getPort() {
return this.getValue('PORT', true);
}
public isProduction() {
const mode = this.getValue('MODE', false);
return mode != 'DEV';
}
public getTypeOrmConfig(): TypeOrmModuleOptions {
return {
type: 'postgres',
host: this.getValue('POSTGRES_HOST'),
port: parseInt(this.getValue('POSTGRES_PORT')),
username: this.getValue('POSTGRES_USER'),
password: this.getValue('POSTGRES_PASSWORD'),
database: this.getValue('POSTGRES_DATABASE'),
entities: [join(__dirname, '**', '*.entity.{ts,js}')],
migrationsTableName: 'migration',
migrations: ['src/migration/*.ts'],
cli: {
migrationsDir: 'src/migration',
},
};
}
}
const configService = new ConfigService(process.env)
.ensureValues([
'POSTGRES_HOST',
'POSTGRES_PORT',
'POSTGRES_USER',
'POSTGRES_PASSWORD',
'POSTGRES_DATABASE'
]);
export = configService ;
appmodule.ts
import { Module } from '#nestjs/common';
import { TypeOrmModule } from '#nestjs/typeorm';
import configService from 'ormConfig';
import { AppController } from './app.controller';
import { AppService } from './app.service';
#Module({
imports: [TypeOrmModule.forRoot(configService.getTypeOrmConfig())],
controllers: [AppController],
providers: [AppService],
})
export class AppModule {
}
.env file
POSTGRES_HOST=localhost
POSTGRES_PORT=8080
POSTGRES_USER=postgres
POSTGRES_PASSWORD=saad2113
POSTGRES_DATABASE=mark1
PORT=3000
MODE=DEV
RUN_MIGRATIONS=true