Save an image and generate Thumb with nodejs

Question

I am trying to burn an image to disk and after that generate a Thumb of the images that was saved.

To do this I saved normal the image in Base64 that was sent and in the callback of Fs.writeFile I call the function to generate the Thumb.

I’m trying to generate Thumb using the package imagemagick

const im = require('imagemagick');
const fs = require('fs');

const imagemCapa        = objetoFolder + "\\" + comando.imagemCapa;
const imagemCapaThumb   = objetoFolder + "\\capa_thumb.jpg";

//Grava no disco
fs.writeFile(imagemCapa, comando.imagemCapaBase64, 'base64', (err) => {
    if(err) console.log(err);

    //Thumb
    const optionsThumb = {
        srcPath: imagemCapa,
        dstPath: imagemCapaThumb,
        width: 262                                  
    };
    im.resize(optionsThumb, (err, stdout, stderr) => {
        if (err) console.log(err);
        console.log('Thumb gerado');
    });

});

I can write the image to disk but it’s not generating Thumb.

Who can help thank you beforehand! A hug.