Cannot use import statement outside a module

[gbelvedere]

Hi, I following the instructions and I get:

(node:5251) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
insert-product.js:19
import { rest } from 'prestashop-api-client';
^^^^^^

SyntaxError: Cannot use import statement outside a module
at wrapSafe (internal/modules/cjs/loader.js:1063:16)
at Module._compile (internal/modules/cjs/loader.js:1111:27)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:1167:10)
at Module.load (internal/modules/cjs/loader.js:996:32)
at Function.Module._load (internal/modules/cjs/loader.js:896:14)
at Function.executeUserEntryPoint [as runMain] (internal/modules/run_main.js:71:12)
at internal/main/run_main_module.js:17:47

If I add the type module to package.json or rename the file to mjs, I get:

(node:5260) ExperimentalWarning: The ESM module loader is experimental.
internal/modules/run_main.js:54
internalBinding('errors').triggerUncaughtException(
^

Error [ERR_MODULE_NOT_FOUND]: Cannot find package 'prestashop-api-client' imported from /var/www/vagrant/testScraper/insert-product.mjs
at packageResolve (internal/modules/esm/resolve.js:575:9)
at moduleResolve (internal/modules/esm/resolve.js:600:14)
at Loader.defaultResolve [as _resolve] (internal/modules/esm/resolve.js:644:13)
at Loader.resolve (internal/modules/esm/loader.js:94:40)
at Loader.getModuleJob (internal/modules/esm/loader.js:240:28)
at ModuleWrap. (internal/modules/esm/module_job.js:42:40)
at link (internal/modules/esm/module_job.js:41:36) {
code: 'ERR_MODULE_NOT_FOUND'
}

package.json:

{
"name": "test",
"version": "1.0.0",
"description": "",
"main": "index.js",
"scripts": {
"test": "echo "Error: no test specified" && exit 1"
},
"author": "",
"license": "ISC",
"dependencies": {
"cheerio": "^1.0.0-rc.3",
"download-file": "^0.1.5",
"node-rest-client": "^3.1.0",
"puppeteer": "^2.1.1",
"read-json-sync": "^2.0.1",
"sync-request": "^6.1.0"
}
}

and the code is the same of the instructions:

import { rest } from 'prestashop-api-client';
const client = new rest.Client({
language: 'en',
languages: {
'en': 1,
'es': 2,
},
webservice: {
key: 'my_key',
scheme: 'http',
host: 'my_url',
root: '/api',
},
});

[rich-choy]

@gbelvedere please try:

const { rest } = require('prestashop-api-client')

[gbelvedere]

it works now, but why? and should be changed in the docs?
thanks @rich-choy