Tips for converting Javascript require to Typescript import using the const keyword

Question

Tips for converting Javascript require to Typescript import using the const keyword

Recently, I've been attempting to import faktory_worker_node from github.com/jbielick/faktory_worker. The README provides the following instructions:

const faktory = require('faktory-worker');

faktory.register('ResizeImage', async ({ id, size }) => {
  const image = await Image.find(id);
  await image.resize(size);
});

faktory.work();

In an effort to translate it into Typescript, I made the following adjustments:

import faktory from 'faktory-worker';

faktory.register('ResizeImage', async ({ id, size }) => {
  const image = await Image.find(id);
  await image.resize(size);
});

faktory.work();

Despite my efforts, I keep encountering the error message

TypeError: Cannot read property 'register' of undefined

. It seems like I need to use const to properly create an object, but I'm struggling to grasp the concept.

While I could continue using this syntax, Typescript guidelines recommend following the rule

no-var-requires: require statement not part of an import statement

javascript typescript

Answer 1

Answer №1

To ensure proper integration, it is important to incorporate typescript definitions for the module as well. You can find the necessary definitions at this link: index.d.ts

For example, save the downloaded file to a folder named typings in the root directory and include the following configuration in your tsconfig.json:

{
   "compilerOptions": {
       "typeRoots" : ["./typings"]
   }
}

By doing so, you will be able to access the interfaces and utilize the methods provided by the module.

Alternatively, there are other approaches available to achieve similar results, such as using @types, typeRoots, and types

Answer 2

To ensure proper integration, it is important to incorporate typescript definitions for the module as well. You can find the necessary definitions at this link: index.d.ts

For example, save the downloaded file to a folder named typings in the root directory and include the following configuration in your tsconfig.json:

{
   "compilerOptions": {
       "typeRoots" : ["./typings"]
   }
}

By doing so, you will be able to access the interfaces and utilize the methods provided by the module.

Alternatively, there are other approaches available to achieve similar results, such as using @types, typeRoots, and types

Answer 3

Answer №2

To fix the problem I was having, I found that including

 "esModuleInterop": true

in my tsconfig.json did the trick:

{
  "compilerOptions": {
    "esModuleInterop": true
    // ...
  }
}

Answer 4

To fix the problem I was having, I found that including

 "esModuleInterop": true

in my tsconfig.json did the trick:

{
  "compilerOptions": {
    "esModuleInterop": true
    // ...
  }
}

Tips for converting Javascript require to Typescript import using the const keyword

Answer №1

Answer №2

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