CODEWITHSUNDEEP
node.jsexpress
Shamoon
Shamoon

Reputation: 43491

Why does req.params return an empty array?

I'm using Node.js and I want to see all of the parameters that have been posted to my script. To get to my function, in my routes/index.js I'm doing:

app.post('/v1/order', order.create);

Then in my function, I have:

exports.create = function(req, res, next) {
 console.log( req.params );

But it's returning an empty array. But when I do:

exports.create = function(req, res, next) {
 console.log( req.param('account_id') );

I get data. So I'm a bit confused as to what's going on here.

Upvotes: 32

Views: 46833

Answers (5)

user10893516
user10893516

Reputation: 11

Add this for your server.js or app.js:

app.use(express.urlencoded({ extended: true })) // for parsing application/x-www-form-urlencoded

Upvotes: 1

Dr4kk0nnys
Dr4kk0nnys

Reputation: 767

With postman, you can have two types of get requests:

  1. Using x-www-form-urlencoded and passing data through the body.
  2. Using url parameters

You can always use this code snippet to always capture the data, no matter how you pass it.

/*
    * Email can be passed both inside a body of a json, or as 
    a parameter inside the url.

    * { email: '[email protected]' } -> [email protected]
    * http://localhost/buyer/get/[email protected] -> [email protected]
        */
    let { email }: { email?: string } = req.query;
    if (!email) email = req.body.email;
        
    console.log(email);

Upvotes: 1

Scott Wager
Scott Wager

Reputation: 868

I had a similar problem and thought I'd post the solution to that for those coming here for the same reason. My req.params was coming out as an empty object because I declared the URL variable in the parent route. The solution is to add this option to the router:

const router = express.Router({ mergeParams: true });

Upvotes: 30

Eddy
Eddy

Reputation: 3723

req.params
can only get the param of request url in this pattern:/user/:name

req.query
get query params(name) like /user?name=123 or body params.

Upvotes: 67

Marius Kjeldahl
Marius Kjeldahl

Reputation: 6824

req.params only contain the route params, not query string params (from GET) and not body params (from POST). The param() function however checks all three, see:

http://expressjs.com/4x/api.html#req.params

Upvotes: 38

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