CODEWITHSUNDEEP
node.jsexpress
M.Asgari
M.Asgari

Reputation: 31

res.send() after res.redirect() in nodejs

I am trying to send a variable to the page after I have redirected to another page. I have very basic knowledge in Node.js and can't seem to figure out a way to do that. Here's my code. 

app.get('/search' , function (req, res) {
var postcode = req.query.search;
var ward = my_search.getWardNum(postcode,(ward) => {
    res.redirect('/:ward'+ ward);
   });
});


app.get('/ws/:postcode' , function (req, res) {
    var postcode = req.params.postcode.replace("+","");
    console.log(pc);
    my_search.postcodeLookUp(pc,(ward) => {
        var area = my_search.lookupWard(ward);
        res.send(area);
    });
});

So in the first app.get(), I get the postcode and redirect to another page. However, I still need that postcode with second app.get(). I understand that nature of node.js is async. Is there a way to do what I want to do?

Upvotes: 1

Views: 2324

Answers (1)

Avery
Avery

Reputation: 2293

When you "redirect", you're not just changing the URL the user sees, you're sending a HTTP response with a status code indicating that the client should try to access another page instead.

You can't send data after you redirect because the full response has already been sent! You should consider why you're redirecting and if it is really necessary. You could also redirect to a route containing the URL parameter that you want to be present:

res.redirect('/ward/' + ward + '/' + postcode);

...

app.get('/ward/:wardID/:postcode', (req, res, next) => {
   // route code here...
});

Note that you'll probably want a prettier format than that, but that is one way to accomplish this.

Upvotes: 1

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