pipline-demo.ts

interface Context {
    [key: string]: any
}

const engine = pipeline<Context>((ctx, next) => {
    ctx.foobar="baz";
    next();
})

engine.use((ctx, next) => {
  ctx.another = 123;
  next();
});

(async () => {
  const context: Context = {};
  await engine.exec(context);
  console.log(context);
})();

// => { foobar: "baz", another: 123 }