ECMAScript Modules · TypeGraphQL

Since v2.0.0 release, TypeGraphQL is compatible with ECMAScript modules.

Thanks to this, we can import the type-graphql package in the ESM projects without any hassle.

TypeScript configuration

It's important to properly configure the project, so that it uses ESM correctly:

the module options should be set to ES2020/ES2022/ESNext
for the NodeJS apps, we should set moduleResolution to "node16"

All in all, the tsconfig.json file should looks like this:

{
  "compilerOptions": {
    "target": "es2021",
    "module": "es2020",
    "moduleResolution": "node16",
    "experimentalDecorators": true,
    "emitDecoratorMetadata": true
  }
}

Package.json configuration

It is also important to set type option to "module" in your package.json file:

{
  "type": "module"
}

Imports

Apart from using import syntax, your local imports have to use the .js suffix, e.g.:

import { MyResolver } from "./resolvers/MyResolver.js";