Express routing using TypeORM with Javascript

Question

Looking at the TypeORM sites examples, there are some showing routing usage done with TypeScript. Since TypeORM can use javascript instead of TypeScript, would anyone be able to point me in the right direction on how to accomplish Express routing with javascript. TypeScript uses Controllers and builds routes using json route structure. Not really sure how to translate that to javascript as the javascript example doesnt even use controllers.

What would be JS alternative to

import {getConnection} from "typeorm";

I tried

var orm = require("typeorm"); 
var conn = orm.getConnection();

but it didnt work :(

Additionally, i wanted to create entities in javascript instead of typescript so i tried something like this :

module.exports = {
    name: "EventType",
    columns: {
        EventTypeId: {
            primary: true,
            type: "int",
            generated: true
        },
        EventTypeUUID: {
            type: "uniqueidentifier"
        },
        Title: {
            type: "varchar"
        },
        IconId: {
            type: "int"
        },
        BackgroundColor: {
            type: "varchar"
        }
      }
};

and tried getting the result in controller like this :

return connection().manager.find(EventType);

and getting thos error :

EntityMetadataNotFound: No metadata for "[object Object]" was found.

Thanks in advance.

pleerock · Accepted Answer · 2017-10-25 10:04:24Z

3

TypeORM has typeorm init command which allows you to generate a new project with typeorm and express, example of usage:

typeorm init --name my-project --express --database postgres

Also, there is an example how to use it with express on TypeORM site http://typeorm.io/#/example-with-express.

answered Oct 25, 2017 at 10:04

pleerock

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6 Comments

Mladen Oršolić Over a year ago

Thanks for your reply pleerock. Is it possible for the init command to generate new project in javascript instead of typescript? (I'm trying to use TypeORM and javascript based entities and controllers, but cannot find such example)

Mladen Oršolić Over a year ago

What would be JS alternatiove to import {getConnection} from "typeorm";?

pleerock Over a year ago

it really depend on which javascript version we are talking about... For example import {getConnection} from "typeorm"; is a valid ES6 syntax. Another question if platform you are using supports it. I strongly recommend you to use typescript since it provides you all latest javascript features without pain. there is no generation functionality for vanilla javascript yet

pleerock Over a year ago

alternative to import {getConnection} from "typeorm"; is var getConnection = require("typeorm").getConnection

Eliran Malka Over a year ago

@MladenOršolić in the meanwhile, this example was created for typeorm using vanilla javascript. also, if you're worried about es6 modules support, the equivalent expression in commonjs would be const {getConnection} = require('typeorm') (if you still have sufficient engine support for destructuring), or const getConnection = require('typeorm').getConnection (if you don't).

|

skvp · Accepted Answer · 2022-10-14 07:23:16Z

0

For appropriate use of TypeORM with JavaScript / node js, refer below url.

Usage with Javascript

answered Oct 14, 2022 at 7:23

skvp

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