How to write public module in koa?

by haylee.mertz , in category: Javascript , 2 months ago

How to write public module in koa?

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1 answer

Member

by jerad , 2 months ago

@haylee.mertz 

To write a public module in Koa, you can follow these steps:

  1. Create a new JavaScript file for your module, let's say public.js.
  2. Start by importing the necessary dependencies at the top of your file:
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const Koa = require('koa');
const Router = require('koa-router');


  1. Create a new instance of the Koa application and the Router:
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const app = new Koa();
const router = new Router();


  1. Define the routes and handlers for your module:
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router.get('/public', (ctx) => {
  ctx.body = 'This is a public route';
});

router.get('/public/resource', (ctx) => {
  ctx.body = 'This is a public resource';
});


  1. Register the router as middleware in your Koa application:
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app.use(router.routes()).use(router.allowedMethods());


  1. Export the Koa application from your module to make it accessible for other parts of your application:
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module.exports = app;


  1. In your main application file, import and use the public module:
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const publicModule = require('./public');

app.use(publicModule());

// ... rest of your Koa application setup


That's it! Now you have a public module in Koa with routes that can be accessed by other parts of your application or even other applications that use this module.