express-partial

Adds partial rendering support to Express so that you can render multiple templates in a single render call. Each template is provided its own template data object on render and the method, by default, will respond to the request with a json object containing the partial name and associated rendered html. Useful for when your frontend wants to request multiple templates in parallel, e.g. updating sections of a page using Ajax.

Installation

npm install express-partial

Usage

express-partial is a middleware that adds a renderPartials() method to the res object. Initialize it with:

var express = require('express');
var partial = require('express-partial');
var app = express();
 
app.use(partial());

Then, use it within your routes with:

app.get('/partials', function () {
  res.renderPartials({
    hello: { data: 'for hello template' },
    world: { data: 'for world template' }
  });
});

which will render something like:

{
  "hello": "<div>Hello template output</div>",
  "world": "<div>World template output</div>"
}

Documentation

res.renderPartials(partials, callback)

Render multiple partials and send a json body response with the partial name as the object key and the rendered html string as its value. When a callback is provided, the possible error and partial name/rendered html object are passed and no automated response is performed.

• partials Object - An object of partial name => locals data to render
  • name String - The name of the partial to render
  • locals Object - The data object to send to the partial when rendering
• callback Function - A callback function that is passed (err, renderedPartials)
  • err Error - An error object when an error occurs during rendering
  • renderedPartials Object - An object of partial name => rendered html