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Next.js | Response Helpers

Next.js Response Helpers


Hello folks! welcome back to a new section of our tutorial on Next.js. In this tutorial, we are going to be discussing about the Next.js Response Helpers.

res object have helper methods similar with that of express.js to ease the development to create services.

Response Helper Methods

Following are the response helper methods -

  • res.status(code) - This method sets the status of response. Code passed must be a valid HTTP status.
  • req.json(json) - This method returns a JSON response. json passed must be a valid JSON object.
  • req.send(body) - This method sends an HTTP response. Response can be string, object or buffer.

Example

Let's create an example to demonstrate the same.

In this example, we'll update an user.js file in pages/api directory.

Let us update the nextjs project which was used in API Routes tutorial.

Create user.js file in pages/api directory with the following content -

export default (req, res) => {
   res.status(200).json({ name: 'Kennedy' });
}


Start Next.js Server

Run the following command below to start the server -

npm run dev

> nextjs@1.0.0 dev D:\Node\nextjs
> next

ready - started server on http://localhost:3000
info  - Loaded env from D:\Node\nextjs\.env.local
event - compiled successfully
event - build page: /api/user
wait  - compiling...
event - compiled successfully
event - build page: /next/dist/pages/_error
wait  - compiling...
event - compiled successfully

Output

Open http://localhost:3000/api/user in any browser of your choice to see the following result -

{ name: 'Kennedy' }


Alright guys! This is where we are going to be rounding up for this tutorial. In our next tutorial, we are going to be studying about Next.js TypeScript Support.

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