Importing this package leads to ERR_REQUIRE_ESM error.

[totenn]

Problem Statement

Importing this module in node 13 leads to ERR_REQUIRE_ESM error.

Description

Seems to be related to this:
nodejs/node#29492
'require' is no longer allowed when "type":"module" is set in package.json.

Platform

Node v13.3.0

Expected behavior

No error occurs.

Observed behavior

The following error occurs:

(node:5061) Warning: require() of ES modules is not supported.
require() of ./node_modules/markdown-it-textual-uml/src/plantuml-parser.js from ./node_modules/markdown-it-textual-uml/src/index.js is an ES module file as it is a .js file whose nearest parent package.json contains "type": "module" which defines all .js files in that package scope as ES modules.
Instead rename plantuml-parser.js to end in .cjs, change the requiring code to use import(), or remove "type": "module" from ./node_modules/markdown-it-textual-uml/package.json.
internal/modules/cjs/loader.js:1163
      throw new ERR_REQUIRE_ESM(filename);
      ^

Error [ERR_REQUIRE_ESM]: Must use import to load ES Module: ./node_modules/markdown-it-textual-uml/src/plantuml-parser.js
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1163:13)
    at Module.load (internal/modules/cjs/loader.js:983:32)
    at Function.Module._load (internal/modules/cjs/loader.js:891:14)
    at Module.require (internal/modules/cjs/loader.js:1023:19)
    at require (internal/modules/cjs/helpers.js:72:18)
    at Object.<anonymous> (./markdown-it-textual-uml/src/index.cjs:3:24)
    at Module._compile (internal/modules/cjs/loader.js:1128:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:1167:10)
    at Module.load (internal/modules/cjs/loader.js:983:32)
    at Function.Module._load (internal/modules/cjs/loader.js:891:14) {
  code: 'ERR_REQUIRE_ESM'
}

Steps to reproduce behavior

Import the package:

import MarkdownItTextualUml from 'markdown-it-textual-uml';

Run with node.

Other notes

This can be fixed by deleting the line

"type":"module"

from package.json.

[manastalukdar]

Fixed in v0.1.3.