How to return multiple array from expressjs routes?

Question

Currently I have the following statement for return an array from a get route:-

return res.json(dataChunk);

Now I also have another array results[1] which I also want to return. So how to do it?

jfriend00 · Accepted Answer · 2017-12-17 00:50:24Z

1

You only get one response from a given request. So, if you want to respond with two separate pieces of data, you need to combine them somehow into a single response and send that. You can either merge their data into one data structure or you can send an object with multiple properties where each property represents one piece of you data.

Without seeing the actual code for your request handler, we can't really know exactly what to suggest, but if you had two separate pieces of data dataChunk and results[1] available at the same time and wanted to send them both, you would just do:

res.send({data: dataChunk, results: results[1]});

This would make the response by an object with two properties data and results and the recipient of the response could examine both properties to get both pieces of the response.

answered Dec 17, 2017 at 0:50

jfriend00

711k104 gold badges1.1k silver badges1k bronze badges

Sign up to request clarification or add additional context in comments.

Comments

Cisco · Accepted Answer · 2017-12-16 19:41:15Z

1

You want to return multiple things from a response? Just wrap it in an object.

const myArray = [1, 2, 3]
const myObject = { foo: 'bar'}

res.json({ myArray, myObject })

answered Dec 16, 2017 at 19:41

Cisco

23.5k6 gold badges44 silver badges67 bronze badges

1 Comment

datavinci Over a year ago

Then on client sde can i access by using myArray? If i want to access myArray object from response.

Collectives™ on Stack Overflow

How to return multiple array from expressjs routes?

2 Answers 2

Comments

1 Comment

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

1 Comment

Your Answer

Sign up or log in

Post as a guest

Related