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koa-compose

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koa-compose

compose Koa middleware

  • 4.1.0
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What is koa-compose?

The koa-compose package is a middleware composition utility for Koa, a web framework for Node.js. It allows developers to combine multiple middleware functions into a single middleware without altering their signature. This is particularly useful for creating complex sequences of asynchronous operations that can be executed in a defined order.

What are koa-compose's main functionalities?

Middleware Composition

This feature allows the combination of multiple middleware functions into a single middleware chain. The code sample demonstrates how to compose two middleware functions and apply them to a Koa application.

const Koa = require('koa');
const compose = require('koa-compose');

const app = new Koa();

async function randomMiddleware(ctx, next) {
  // perform some operations
  await next();
}

async function anotherMiddleware(ctx, next) {
  // perform other operations
  await next();
}

const allMiddlewares = compose([randomMiddleware, anotherMiddleware]);

app.use(allMiddlewares);

app.listen(3000);

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Package last updated on 22 May 2018

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