Receive form data in an array in node.js using Express?

Question

I want to create a form which makes a request of type POST and send the data to the node.js server (using express).

How can the form sent and received as an array in the server?

Please put some code, html + server files

parwatcodes
– parwatcodes

2017-03-05 15:22:17 +00:00
Commented Mar 5, 2017 at 15:22 — parwatcodes
– parwatcodes, Commented Mar 5, 2017 at 15:22

Quentin · Accepted Answer · 2017-03-05 17:04:31Z

12

PHP introduced an extension to the application/x-www-form-urlencoded data format that allows complex data structures to be encoded. Express has support for that format via the body-parser module.

Name the fields with [] at the end of the name.

<fieldset>
    <legend>What animals do you like?</legend>
    <label><input type="checkbox" name="animals[]" value="Cats"> Cats</label>
    <label><input type="checkbox" name="animals[]" value="Dogs"> Dogs</label>
    <label><input type="checkbox" name="animals[]" value="Tortoises"> Tortoises</label>
</fieldset>

Then, in express, use the body-parser middleware and turn on extended support.

app.use(bodyParser.urlencoded({ extended: true }))

When you read the request body, animals will be an array (or unset if none of the checkboxes were checked).

answered Mar 5, 2017 at 17:04

Quentin

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1 Comment

kshitij Over a year ago

Thanks man, it was helpful and I am a noobie in nodejs

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