Registry / web-framework / rax-server-renderer

rax-server-renderer

library1.4.1jsnpmunverified

rax-server-renderer is a server-side rendering (SSR) package specifically designed for applications built with Rax, Alibaba's lightweight React-compatible framework. It enables Rax components to be rendered into HTML strings on the server, facilitating faster initial page loads, improved SEO, and better user experience for Rax-based web applications. The current stable version is 1.4.1. While the provided release history details updates primarily through v1.2.2 around late 2020 to early 2021, the current version indicates ongoing development, though the package hasn't seen a new npm release in the past 12 months according to external reports. Its primary differentiator is its tight integration within the Rax ecosystem, providing the necessary tools to implement isomorphic Rax applications.

web-framework serialization

npm install rax-server-renderer

github ↗package ↗homepage ↗

INSTALL

IMPORT

SIG · RAX-SERVER-RENDERE

rax-server-renderer

web-frameworkjavascriptv1.4.1

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

renderer

✓ import renderer from 'rax-server-renderer';

✗ import { renderer } from 'rax-server-renderer'; const renderer = require('rax-server-renderer');

The default export `renderer` provides the `renderToString` method. CommonJS `require` is generally discouraged in modern Rax applications favoring ESM imports.

renderToString

✓ import renderer from 'rax-server-renderer'; const html = renderer.renderToString(<MyComponent />);

✗ import { renderToString } from 'rax-server-renderer';

The `renderToString` method is accessed via the default `renderer` object, not as a direct named export.

createElement, Component

✓ import { createElement, Component } from 'rax';

✗ import { createElement, Component } from 'rax-server-renderer';

Core Rax utilities like `createElement` and `Component` are imported from the `rax` package, not `rax-server-renderer`.

Demonstrates rendering a simple Rax component to an HTML string using `renderToString`.

import {createElement, Component} from 'rax'; import renderer from 'rax-server-renderer'; class MyComponent extends Component { render() { return <div>Hello World from SSR!</div>; } } // Render the Rax component to an HTML string const htmlString = renderer.renderToString(<MyComponent />); console.log(htmlString); // Example of a basic server setup (Node.js/Express) // const express = require('express'); // const app = express(); // const PORT = 3000; // app.get('/', (req, res) => { // const htmlContent = ` // <!DOCTYPE html> // <html> // <head><title>Rax SSR App</title></head> // <body> // <div id="root">${htmlString}</div> // <script src="/client.js"></script>  // </body> // </html> // `; // res.send(htmlContent); // }); // app.listen(PORT, () => { // console.log(`Server listening on port ${PORT}`); // });

Debug

Known issues

gotchaThe package `rax-server-renderer` depends on `rax` as a peer dependency. Ensure `rax` is installed in your project, e.g., `npm install rax`.

fix

Install the `rax` package: `npm install rax` or `yarn add rax`.

affects: *

breakingIn `v1.2.1`, the package underwent a refactor to change its output result format, specifically to avoid mixing IIFE and CJS. This could potentially affect build pipelines or tooling that relied on specific module formats, though it was not an API breaking change.

fix

Review your build configuration and module resolution settings if you encounter unexpected bundling issues after upgrading to or beyond v1.2.1. Ensure your bundler correctly handles ESM or the updated module format.

affects: >=1.2.1

gotchaSupport for React-like error boundaries using `componentDidCatch` and `getDerivedStateFromError` was added in `v1.2.0`. Applications using older versions will not benefit from this server-side error handling for component trees.

fix

Upgrade to `rax-server-renderer@^1.2.0` or newer to leverage robust error handling mechanisms during server-side rendering.

affects: <1.2.0

deprecatedWhile the npm listing shows `v1.4.1`, external reports indicate that the package's maintenance is 'Inactive' and it hasn't seen new npm releases in the past 12 months. Consider the long-term support implications for new projects.

fix

For new projects, evaluate the overall Rax ecosystem's activity and consider community support or alternatives if long-term active development is a critical requirement. For existing projects, be aware that future updates may be infrequent.

affects: >=1.4.1

Errors

Common errors & fixes

Error: Cannot find module 'rax' or 'rax-server-renderer'

The package or its peer dependency `rax` is not installed.

fix

Run `npm install rax-server-renderer rax` or `yarn add rax-server-renderer rax`.

TypeError: renderer.renderToString is not a function

The `renderer` object was imported incorrectly, or `renderToString` is being called on an undefined variable.

fix

Ensure you are using the correct default import: `import renderer from 'rax-server-renderer';` and then call `renderer.renderToString(<YourComponent />);`

Hydration error: Did not expect server HTML to contain a <%s> in <%s>.

The HTML generated on the server (`rax-server-renderer`) does not precisely match the component tree rendered on the client side (by `rax`). Common causes include different data, environment-specific rendering, or mismatches in prop values.

fix

Ensure that the initial data used for rendering on both the server and client is identical. Avoid using browser-specific APIs (like `window` or `document`) during SSR, or conditionally guard their access. Debug by comparing the server-rendered HTML and client-rendered virtual DOM.

Upgrade

Version history

1.4.1latest on npm

Audit

Dependencies

raxrequiredCore rendering engine for Rax components, providing `createElement` and `Component`.

Agent activity

10 hits · last 30 days

node

Resources

githubhttps://github.com/alibaba/rax ↗

packagehttps://www.npmjs.com/package/rax-server-renderer ↗

homepagehttps://rax.alibaba.io ↗