middlewerewolf

Lightweight ES6 async/await middleware library

Installation

  yarn add middlewerewolf

Usage

import middlewerewolf from "middlewerewolf";
let app = new middlewerewolf();

// This middleware will execute without issue
app.use(async (ctx, next) => {
  ctx.foo = true;
  await next();
});

// This middleware will execute, but does not call next()
app.use(async ctx => {
  ctx.bar = true;
});

// This middleware will not execute, as the previous middleware
// did not call next()
app.use(async ctx => {
  ctx.baz = true;
});

// Register multiple middleware with a single command
app.all([
  async ctx => {
    ctx.foo = true;
    await next();
  },
  async ctx => {
    ctx.bar = true;
    await next();
  }
]);

// Compose a new middleware execution chain
let fn = app.compose();

// Execute the chain
fn({
  initial_context: true
}).then(ctx => {
  console.log("All done here!");
}).catch(err => {
  console.log("Handle errors like a boss.");
});

Build middlewerewolf

git clone [email protected]:aewing/middlewerewolf.git
cd middlewerewolf/
make lint
make flow
make test
make build

Contributing

Pull requests are welcome, but I intend to keep this package as lightweight and future compliant as possible.

Credits

Much love to koa-compose, which inspired this package.