CODEWITHSUNDEEP
javascriptjsonnode.jsrestexpress
Zachary Jacobi
Zachary Jacobi

Reputation: 1073

Use .json extension to force JSON output from an Express.js endpoint

Is it possible to set up endpoints in Express.js in such a way that the user can signal they'd like only JSON output by appending .json to the URL?

For example, if I have the endpoint example.com/data/:data_id, is there a function someFunction such that if I hit the endpoint example.json/data/:data_id with the following code I would be able to get JSON output out?

router.get('/data/:data_id', function(req, res, next) {
    var extension = req.someFunction();
    if (extension === 'json') {
        res.json({...});
    } else {
        res.render('view', {...});
    };
});

I know there is probably a way to do that with content headers, but I've seen it recommended that content type be specified by an extension so that APIs can be browsed by a browser.

Upvotes: 0

Views: 407

Answers (1)

NBeydon
NBeydon

Reputation: 703

I think you could just add a format parameter in the query url

router.get('/data/:data_id', function(req, res, next) {
    if (req.query.format && req.query.format === 'json') {
        res.json({...});
    } else {
        res.render('view', {...});
    };
});

something like this !

Upvotes: 1

Related Questions