ejs-stream2
A nodejs stream template renderer based on ejs syntax.
The library ejs supports string only to output,
but we need to output stream sometimes(see #102).
For example, with React'srenderToNodeStream API. This library makes it possible.
Install
Please note the package name is ejs-stream2 rather than ejs-stream in
npm, for ejs-stream is occupied by another people.
npm install ejs-stream2
# or var yarn
yarn add ejs-stream2Usage
import { compile } from 'ejs-stream2';
import express from 'express';
import { renderToNodeStream } from 'react-dom/server';
const template = compile(`
<!DOCTYPE html>
<html>
<head>
<title><%= title %></title>
</head>
<body>
<div id=root><%- content %></div>
<script async defer src="<%- scriptBundle %>"></script>
</body>
</html>
`);
const app = express();
app.get('/', (req, res) => {
const stream = template({
title: 'Hello world',
content: renderToNodeStream(<App />),
scriptBundle: '/bundle.js',
});
// please note you must listen the `error` event of `Readable`, or your
// application with exit if error occurs.
stream.on('error', (error) => {
console.error(error);
res.end();
});
stream.pipe(res);
});Features
- Support all the syntax set of
ejs, see syntax.md - Support the following variables to output directly by
<%- variable %>or<%= variable %>NodeJS.ReadableStream | Uint8Array | stringPromise<NodeJS.ReadableStream | Uint8Array | string>Array<NodeJS.ReadableStream | Uint8Array | string | Promise<NodeJS.ReadableStream | Uint8Array | string>>
For simplify the test cases, we removed the following features from ejs
- file system relative features, such as
renderFile,include - options to change delimiters
-
asyncmode - cache
LICENSE
This project is published under MIT license
The MIT License (MIT)
Copyright (c) 2019 acrazing
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
most code of the compiler comes from mde/ejs, license of this project at https://github.com/mde/ejs/blob/master/LICENSE.