How to extract form fields with koa?

Member

by ryleigh , in category: Javascript , a month ago

How to extract form fields with koa?

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1 answer

Member

by rollin , a month ago

@ryleigh 

In order to extract form fields with Koa, you can make use of the koa-bodyparser middleware which is designed to parse the request body in different ways including form fields.


Here's an example of how you can use koa-bodyparser to extract form fields in a Koa application:

  1. Install koa-bodyparser package using npm or yarn:
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npm install koa-bodyparser


  1. Import and use the koa-bodyparser middleware in your Koa application:
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const Koa = require('koa');
const bodyParser = require('koa-bodyparser');

const app = new Koa();

// Use the bodyParser middleware to parse form fields
app.use(bodyParser());

app.use(async ctx => {
  // Access form fields from the parsed body
  const formData = ctx.request.body;

  // Use the form data as needed
  console.log(formData);

  // Send a response
  ctx.body = 'Form fields extracted successfully';
});

app.listen(3000, () => {
  console.log('Server is running on http://localhost:3000');
});


  1. Now you can send a POST request containing form fields to your Koa application and access the form data in your route handler. The form fields will be available in the ctx.request.body object.


That's it! You have successfully extracted form fields in a Koa application using koa-bodyparser middleware.