How to download file by name using express js?

Question

Express.js

There is a code:

app.get('/downloadJson', (req, res, next) => {
    let path = './data/';
    let fileName = 'name.json';

    res.download(path, fileName);
});

I want to send the name of any file that is in the folder in res.download (path, fileName) when requested. Please tell me how to do it.

Answer 1

Googled the solution:

app.get('/downloadJson/:file(*)', (req, res) => {
    let file = req.params.file;
    let fileLocation = path.join('./data', file);

    console.log(fileLocation);
    res.download(fileLocation, file);
});