Getting error in Singleton import

[ashokkumar88]

Package version

6.2.2

Describe the bug

I have created a singleton in the app_provider.ts in the boot() {} method like below.

this.app.container.singleton('App/GraphQL', () => graphql_middlewire);

Then in a helper file i imported it import graphql_middlewire from "App/GraphQL". But it is giving error Cannot find package 'App'

Reproduction repo

No response

[Julien-R44]

You can find a complete example here:

https://docs.adonisjs.com/guides/ioc-container#basic-example

[ashokkumar88]

Actually I am still not getting how to create the singleton and import it. Should i create in the app_provider.ts boot method or create a separate service for it. An example will be very helpful?

[e-e]

@ashokkumar88 does something like this work?

// providers/app_provider.ts

import { ApplicationService } from "@adonisjs/core/types";
import graphql_middlewire from "#services/graphql_middlewire"; // adjust to your actual import

 export default class AppProvider {
   public static needsApplication = true;

   constructor(protected app: ApplicationService) {}

   public register() {
     // Register your own bindings
     this.app.container.singleton('App/GraphQL', () => new graphql_middlewire());
   }

   public async boot() {}

   public async ready() {
     // App is ready
   }

   public async shutdown() {
     // Cleanup, since app is going down
   }
 }

// types/container.ts

declare module "@adonisjs/core/types" {
  import graphql_middlewire from "#services/graphql_middlewire"; // use the proper import here

  interface ContainerBindings {
    "App/GraphQL": GraphQL;
  }
}

// some/other/file.ts

import app from "@adonisjs/core/services/app";

// ...

const graphql = await app.container.make("App/GraphQL");

[ashokkumar88]

@e-e Thanks for your response.

Actually i created a GraphqlService as singleton and import it as #services/graphql_service. It is working fine.