I'm having trouble figuring out the right folder organization for the custom typings specific to this module. Can you provide

I have developed custom type definitions for a module called @xmpp/client. Integrating these types into my TypeScript project has been challenging, as the compiler fails to recognize them.

My typings are stored in a directory named types, resulting in the following folder structure:

.
├── app.json
├── App.tsx
├── package.json
├── src
│   └── <snip>
├── types
│   └── @xmpp
│        └── client.d.ts
├── tsconfig.json
└── yarn.lock

I have experimented with different folder structures, such as having types/@xmpp/client/index.d.ts but none have been successful. Each time I compile, I encounter the error message

Cannot find module '@xmpp/client'
.

Here is an excerpt from my tsconfig.json:

{
  "compilerOptions": {
    "allowSyntheticDefaultImports": true,
    "jsx": "react-native",
    "lib": ["dom", "esnext"],
    "moduleResolution": "node",
    "noEmit": true,
    "skipLibCheck": true,
    "resolveJsonModule": true,
    "strictNullChecks": true,
    "typeRoots": ["./node_modules/@types", "./types"]
  },
  "includes": ["src/**/*.{ts,tsx}", "types/**/*.d.ts"]
}

Could someone identify any issues with this configuration? Is my tsconfig.json correct, and how should I organize my types folder for a module with slashes in its name?

The custom type definitions are outlined below:

import { EventEmitter } from "react-native";

declare module "@xmpp/client" {
  export function client(options: {
    service?: string;
    domain?: string;
    resource?: string;
    username?: string;
    password?: string;
    credentials?: (
      auth: ({ username: string, password: string }) => any,
      mechanism: string
    ) => any;
  }): XmppClient;

  type XmppClient = EventEmitter & {
    start: () => void;
    stop: () => void;
    send: (...args: any) => Promise<any>;
  };
  export function jid(): any;

  <snip>
}

Answer №1

As per the insights shared in this particular comment found on a similar GitHub issue related to TypeScript, it is advised to relocate your import statements within the body of

declare module '@xmpp/client' { ... }
. Here's how:

declare module '@xmpp/client' {
  import { EventEmitter } from "react-native";
  // ...and so forth
}

An additional requirement is to ensure the correct type declaration for options.credentials in the client function.

auth: ({ username: string, password: string }) => any

It should ideally be structured as follows:

auth: (params: { username: string, password: string }) => any

If the issue persists even after addressing these adjustments, then it might be worth examining your tsconfig file, although at this juncture, it seems satisfactory.

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