The exports `package.json` needs a new paint job

[mmomtchev]

Here is the exports section of the package.json :

{
  "type": "module",
  "main": "dist-node/geotiff.js",
  "module": "dist-module/geotiff.js",
  "jsdelivr": "dist-browser/geotiff.js",
  "unpkg": "dist-browser/geotiff.js",
  "exports": {
    ".": {
      "import": "./dist-module/geotiff.js",
      "require": "./dist-node/geotiff.js",
      "browser": "./dist-browser/geotiff.js"
    }
  }
}

First of all, the require version does not work anymore - it hasn't been working for some time - since quick-lru does not support CJS anymore. As it adds to the complexity, I suggest to remove it.

Second, the correct form of exports would have been (https://webpack.js.org/guides/package-exports/, https://nodejs.org/api/packages.html#packages_package_entry_points):

  "exports": {
    ".": {
      "node": {
        "import": "./dist-module/geotiff.js",
        "require": "./dist-node/geotiff.js"
      },
      "browser": "./dist-browser/geotiff.js"
    }
  }

Currently, it is not well defined what to include when importing from an ES6-capable browser bundler such as webpack - is it import or is it browser? Well, webpack picks import - which pulls the Node.js web-worker.

Then the browser bundle is a CJS (UMD?) bundle - which is correct as this is the node_modules official standard, but these days almost all browser packages use ES6 (look at OpenLayers). If you want to be perfect to a fault, you should include both:

  "exports": {
    ".": {
      "node": {
        "import": "./dist-module/geotiff.js",
        "require": "./dist-node/geotiff.js"
      },
      "browser": {
        "import": "./dist-browser/geotiff.mjs",
        "require": "./dist-browser/geotiff.cjs"
      }
    }
  }

Anyway most bundlers do not like the CJS (which is in fact an UMD?) - as there is no way to identify its named exports until it is actually loaded. So they quietly switch to the Node.js import version.

[mmomtchev]

Are you interested in maintaining a Node.js CJS version? In this case quick-lru must be bundled in the dist file, rollup is capable of doing it - currently the CJS is produced by tsc which does not have this capability.

If I spend a day fixing this, would you be interested in merging the PR?

[pcace]

Are you interested in maintaining a Node.js CJS version? In this case quick-lru must be bundled in the dist file, rollup is capable of doing it - currently the CJS is produced by tsc which does not have this capability.

If I spend a day fixing this, would you be interested in merging the PR?

hi there, i am facing the same problem - i cannot get this to run because of quick-lru (const quick_lru_1 = __importDefault(require("quick-lru"));)

did you make a pr? or a fork of a working version?

Thanks a lot for your help!

[brandonfcohen1]

Hi- has there been any movement on this? I am using 2.1.2 and still having this issue