Import Errors

Issue type:

[ ] question [x] bug report [ ] feature request [ ] documentation issue

Database system/driver:

[ ] cordova [ ] mongodb [ ] mssql [ ] mysql / mariadb [ ] oracle [x] postgres [ ] sqlite [ ] sqljs [ ] react-native

TypeORM version:

[ ] latest [ ] @next [x] 0.2.5 (or put your version here)

First of all, thanks for the awesome ORM. When using TypeScript this is by far the superior solution!

So, the issue I am having is that everything works when I am running my project using ts-node, but when I build the project and transpile to JS, I get import errors on my entity files.

I also created an issue on StackOverflow

Error:

(function (exports, require, module, __filename, __dirname) { import { Entity, PrimaryGeneratedColumn, ManyToOne, OneToMany, TreeChildren, TreeParent, JoinColumn, Column, Tree, TreeLevelColumn } from "typeorm";
                                                              ^^^^^^

SyntaxError: Unexpected token import
    at createScript (vm.js:80:10)
    at Object.runInThisContext (vm.js:139:10)
    at Module._compile (module.js:616:28)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Function.PlatformTools.load (C:\Users\DDeWulf\Workspace\experimental\rabbly\node_modules\typeorm\platform\PlatformTools.js:126:28)

My package.json:

{
   "name": "rabbly",
   "version": "1.0.0",
   "description": "",
   "main": "index.js",
   "scripts": {
      "test": "echo \"Error: no test specified\" && exit 1",
      "dev": "nodemon --watch 'src/**/*.ts' --ignore 'src/**/*.spec.ts' --exec ts-node src/index.ts",
      "start": "tsc && node ./dist/index.js",
      "migrate": "ts-node ./node_modules/typeorm/cli.js migration:generate"
   },
   "author": "David DeWulf",
   "license": "ISC",
   "dependencies": {
      "bcryptjs": "^2.4.3",
      "body-parser": "^1.18.3",
      "class-validator": "^0.8.5",
      "express": "^4.16.3",
      "jwt-simple": "^0.5.1",
      "morgan": "^1.9.0",
      "pg": "^7.4.3",
      "reflect-metadata": "^0.1.10",
      "typeorm": "0.2.5"
   },
   "devDependencies": {
      "@types/bcryptjs": "^2.4.1",
      "@types/body-parser": "^1.17.0",
      "@types/express": "^4.11.1",
      "@types/jwt-simple": "^0.5.33",
      "@types/node": "^8.10.15",
      "ts-node": "3.3.0",
      "typescript": "2.5.2"
   }
}

My ormconfig.json:

{
   "type": "postgres",
   "host": "***********************",
   "port": 5432,
   "username": "***********************",
   "password": "*****************",
   "database": "***********************",
   "synchronize": true,
   "logging": false,
   "entities": [
      "src/entity/**/*.ts"
   ],
   "migrations": [
      "src/migration/**/*.ts"
   ],
   "subscribers": [
      "src/subscriber/**/*.ts"
   ],
   "cli": {
      "entitiesDir": "src/entity",
      "migrationsDir": "src/migration",
      "subscribersDir": "src/subscriber"
   }
}

And the file throwing the error:

import { Entity, PrimaryGeneratedColumn, ManyToOne, OneToMany, TreeChildren, TreeParent, JoinColumn, Column, Tree, TreeLevelColumn } from "typeorm";
import { User } from "./User";
import { Debate } from "./Debate";


@Entity()
@Tree("closure-table")
export class Comment {

    @PrimaryGeneratedColumn("uuid")
    id: string;

    @Column()
    text: string;

    @ManyToOne(type => User)
    user: User;

    @ManyToOne(type => Debate, debate => debate.comments)
    debate: Debate;

    @TreeChildren()
    children: Comment[];

    @TreeParent()
    parent: Comment;
}

After playing around some, it seems that the issue is related to when I create a connection to my DB. When I comment out where I create the connection, no more errors are thrown.

The code in my index.ts:

import "reflect-metadata";
import { createConnection } from "typeorm";
import { User } from "./entity/User";
import { userRouter } from './routes/userRoutes';
import * as bodyParser from 'body-parser'
import * as express from 'express';
import { debateRouter } from "./routes/debateRoutes";
import { commentRouter } from "./routes/commentRoutes";

const app: express.Application = express();
const PORT = process.env.PORT || 3000;

app.use(bodyParser.json());
app.use(bodyParser.urlencoded({ extended: false }));

app.use('/user', userRouter);
app.use('/debate', debateRouter);
app.use('/comment', commentRouter);

createConnection().then(connection => {
    app.listen(PORT, () => {
        console.log(`Serving app on port ${PORT}`);
    });
}).catch(error => console.log(error));

Thank you in advance for any and all help.

[dwdewul]

Alright, I am simply dumb.

So, the ormconfig.json points your entities to your ts files in your /src folder. When you build your project, it should point to where your entities are. I did think it was odd that it was trying to reference a TS file after building.

ormconfig.json

{
   "type": "postgres",
   "host": "***********************",
   "port": 5432,
   "username": "***********************",
   "password": "***********************",
   "database": "***********************",
   "synchronize": true,
   "logging": false,
   "entities": [

      "dist/entity/*.js"
   ],
   "migrations": [
      "src/migration/**/*.ts"
   ],
   "subscribers": [
      "src/subscriber/**/*.ts"
   ],
   "cli": {
      "entitiesDir": "src/entity",
      "migrationsDir": "src/migration",
      "subscribersDir": "src/subscriber"
   }
}

[rpmonteiro]

Using ENV variables, the fix for me was:

TYPEORM_ENTITIES=dist/**/*.entity.js
TYPEORM_MIGRATIONS=dist/migration/*.js
TYPEORM_MIGRATIONS_DIR=dist/migration

took me 2h to get it working again…

Hope this helps some other poor soul