This middleware adds two properties to express's res object:

• promises - empty object for other middlewares to store promises on
• renderAfterPromises - method which waits for all promises on res.promises to resolve before calling res.render with promise resolutions

npm install res-promises

const express = require('express');
const resPromises = require('res-promises');

const app = express();

app.use(resPromises())

See example dir for how to use with other middleware.

• resPromises([overrideResRender]) - boolean to override res's render method. Default method name is renderAfterPromises