如何在应用程序中使用.Node文件

Question

I want to use lwip in my node application. But when I tried npm install lwip , it failed on in my environment. So, I followed instructions on the github page, I have the project built for my environment. The output of which is three .Node files: lwip_decoder, lwip_encoder, and lwip_image. how do I use these within my application?

I have this but I keep getting an error that .open is undefined

var lwip = require('../../custom_modules/lwip_image');
var img = req.files.image;
var imgPath = path.join(__dirname, '../../public/images', img.name);
lwip.open(imgPath, function (err, image) {
    if (!err) {
        console.log(image.width);
        consoel.log(image.height);
    } else {
        console.log(err);
        console.log(imgPath);
    }
});

Answer 1

lwip_image is not the module you should be requiring.

You still need to require('lwip') . You just need to put your build modules into the appropriate place so that lwip can use them when it needs to.