TypeError: MercadoPago is not a constructor

[fof3096]

The error occurs in the following part of the code:

import MercadoPago from "mercadopago";

const client = new MercadoPago({
  accessToken: "ACCESS_TOKEN",
});

[romerosilva-meli]

Hi @fof3096 , thanks for reaching out to us.

This issue is fixed with a named import with version 2.0.1, like so:

import { MercadoPago } from "mercadopago";

const client = new MercadoPago({
  accessToken: "ACCESS_TOKEN",
});

[fof3096]

Thanks for responding, however the error appears again. I am on version 2.0.1

My dependencies:

"dependencies": {
    "cors": "^2.8.5",
    "express": "^4.18.2",
    "firebase": "^10.4.0",
    "mercadopago": "^2.0.1",
    "nodemon": "^3.0.1"
  }

[lucmkz]

Good afternoon @fof3096!
There really was an innocence to the examples added on github, for vanilla javascript integration.
To create your integration correctly with javascript, it is necessary to add the .default at the end of MercadoPago
Eg.

import MercadoPago from 'MercadoPago'
...
const client = new MercadoPago.default({
  accessToken: process.env.MERCADO_PAGO_ACCESS_TOKEN,
});

This happens because the bundle is built and delivered using commonjs.

Or to import in a named way, you must use the module is called MercadoPagoConfig
Eg.

import { MercadoPagoConfig } from 'MercadoPago'
...
const client = new MercadoPagoConfig({
  accessToken: process.env.MERCADO_PAGO_ACCESS_TOKEN,
});

This way it is not necessary to add .default at the end of the module, this makes the way of using the module more natural.
Feel free to choose the best form of integration for you.

Lucas.