express-promise-render-ts

A simple wrapper for express render method which allows you to receive the rendering result through promise.

This is a typescript support express middleware that attach to a response object a method, that wraps the result of calling a standard render method and returns it through promises, without sending it to the client.

Install

# With npm
npm install --save express-promise-render-ts

# With yarn
yarn add express-promise-render-ts

Usage

First you need to declare and mount this middleware the express app object.

import promiseRender from "express-promise-render-ts";

//...

app.use(promiseRender);

Then in your route handler you may call a promiseRender wrapper method like this

app.get('/', (req: Request, res: Response) => {
  res.promiseRender("path/to/view")
    .then((html) => {
        console.info(html) // --> rendered HTML string
    })
    .catch((err) => { // rejected promise if something went wrong
        console.error(err) // --> catched error
    });
})

This solution will be useful if you don't want to immediately send the rendered HTML string to client, but just get it for later use. For example, as a template for sending an email.