Using the PUT method with Express.js

Question

I'm trying to implement update functionality to an Express.js app, and I'd like to use a PUT request to send the new data, but I keep getting errors using PUT. From everything I've read, it's just a matter of using app.put, but that isn't working. I've got the following in my routes file:

send = function(req, res) { 
    req.send(res.locals.content);
};

app.put('/api/:company', function(res,req) {
    res.send('this is an update');
}, send);

When I use postman to make a PUT request, I get a "cannot PUT /api/petshop" as an error. I don't understand why I can't PUT, or what's going wrong.

Have you tried using methodOverride()? http://stackoverflow.com/a/8378414/918608 http://stackoverflow.com/a/14174177/918608 — Josh C., Sep 04 '13 at 01:49

score 22 · Accepted Answer · edited May 29 '22 at 17:47

22

You may be lacking the actual update function. You have the put path returning the result back to the client but missing the part when you tell the database to update the data.

If you're using MongoDB and ExpressJS, you could write something like this :

app.put('/api/:company', function (req, res) {
    var company = req.company;
    company = _.extend(company, req.body);
    company.save(function(err) {
    if (err) {
        return res.send('/company', {
            errors: err.errors,
            company: company
        });
    } else {
        res.jsonp(company);
    }   
  })
});

This mean stack project may help you as it covers this CRUD functionality which I just used here swapping their articles for your companies. same same.

edited May 29 '22 at 17:47

Maoz Zadok

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answered Jan 28 '14 at 01:26

headwinds

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1

are the `req` and `res` arguments in the callback in the wrong order? Should be `function(req,res)`? http://expressjs.com/api.html#app.put.method – Akurn Sep 07 '15 at 14:26
@Akurn, yes should be req res. – danilodeveloper Oct 07 '15 at 18:56

score 5 · Answer 2 · edited Jul 22 '20 at 09:29

5

Your callback function has the arguments in the wrong order.

Change the order of callback to function(req, res). Don't use function(res, req).

edited Jul 22 '20 at 09:29

Jean-François Fabre

137,073
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answered Sep 18 '19 at 07:06

jet street

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score 0 · Answer 3 · answered Aug 20 '19 at 16:14

0

Also if you want to redirect in put or delete (to get adress), you can't use normal res.redirect('/path'), you should use res.redirect(303, '/path') instead. (source)

If not, you'll get Cannot PUT error.

answered Aug 20 '19 at 16:14

yaya

7,675
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score -6 · Answer 4 · edited Jul 13 '19 at 19:07

-6

Have you been checking out your headers information? Because header should be header['content-type'] = 'application/json'; then only you will get the update object in server side (node-express), otherwise if you have content type plain 'text/htm' like that you will get empty req.body in your node app.

edited Jul 13 '19 at 19:07

MarvMan

41
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answered Dec 19 '16 at 07:19

selvaraj

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1

Using the PUT method with Express.js

4 Answers4

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