[webpack start:hmr] SyntaxError: Unexpected token import on TypeORM entity files

I’m submitting a…

[ ] Regression 
[x] Bug report
[ ] Feature request
[ ] Documentation issue or request
[ ] Support request => Please do not submit support request here, instead post your question on Stack Overflow.

Current behavior

When running npm run start:hmr (note that npm run webpack is running) on a project created with the CLI and containing a TypeORM entity file, I get the following error:

[Nest] 10906   - 2018-8-29 16:41:14   [TypeOrmModule] Unable to connect to the database. Retrying (6)... +3011ms
/mnt/c/********/src/records/record.entity.ts:1
(function (exports, require, module, __filename, __dirname) { import { Entity, Column, PrimaryGeneratedColumn, VersionColumn, CreateDateColumn,
UpdateDateColumn } from 'typeorm';
                                                              ^^^^^^

SyntaxError: Unexpected token import

Expected behavior

I would expect no errors. It seems like the entity file does not get compiled to JavaScript.

Minimal reproduction of the problem with instructions

1. Create a new project with the Nest CLI
2. Add TypeORM to the project
3. Create a TypeORM entity file
4. Run npm run webpack
5. On another terminal run npm run start:hmr
6. Observe the error

What is the motivation / use case for changing the behavior?

Environment

[System Information]
OS Version     : Linux 4.4
NodeJS Version : v8.11.4
NPM Version    : 6.4.0
[Nest Information]
typeorm version : 5.2.0
common version  : 5.0.0
core version    : 5.0.0

I am new to Nest so please excuse me If I am making a stupid mistake. I was not able to find details in the documentation about hot reloading on a CLI project. Thanks!

[JayAhn2]

Hi Guys,

I’m able to fix this issue by changing configuration in nodemon.json as below.

nodemon.json

{
  "watch": ["src"],
  "ext": "*",
  "ignore": ["src/**/*.spec.ts"],
  "exec": "ts-node -r tsconfig-paths/register src/main.ts"
}

[LaThortilla]

another option would be to create the ./src/orm.config.ts I have to import all the entities there and then add it in the main module.

app.module.ts

import { Module } from '@nestjs/common';
import { TypeOrmModule } from '@nestjs/typeorm';
import ormconfig from 'orm.config';
@Module({
  imports: [ 
	  TypeOrmModule.forRoot(ormconfig),
  ]
})
export class AppModule {}

File orm.config.ts

import { EntityOne } from './entityone.entity';
import { EntityTwo } from './entitytwo.entity';
let ormconfig = {
			"type": "mysql",
			"host": "localhost",
			"port": 3306,
			"username": "your_user",
			"password": "**********",
			"database": "your_database",
			"entities": [EntityOne, EntityTwo], //<----include all 
			"synchronize": true
			};

export default ormconfig;