Contract-Model-Model-View (CMMV)
Building scalable and modular applications using contracts.

Documentation • Report Issue

Description

The @cmmv/middleware module is designed to integrate Express middlewares into CMMV applications. It is based on the original implementation of Express and the features offered by the senchalabs/connect project. This module allows for flexible and modular addition of middlewares, providing a similar experience to Express. It supports a wide range of common middlewares, including authentication, session handling, request body parsing, and more, making it easy to create routes and handle HTTP requests efficiently and in an organized manner. Furthermore, the module maintains compatibility with custom middlewares, enabling developers to extend and adapt its functionality according to their application's specific needs.

Installation

Install the @cmmv/middleware package via npm:

$ pnpm add @cmmv/middleware

Quick Start

Below is a simple example of how to create a new CMMV application:

import cmmv from '@cmmv/server';
import * as cors from 'cors';
import * as compression from 'compression';
import helmet from 'helmet';
import _ from "./index";

const app = cmmv();

app.use(_(cors()));
app.use(_(helmet()));
app.use(_(compression({ level: 6, threshold: 0 })));

app.get("/", (req, res) => {
    res.json({Hello: "World"});
});

app.listen({ host: "127.0.0.1", port: 3000})
.then(server => {
    console.log(
        `Listen on http://${server.address().address}:${server.address().port}`,
    );
})
.catch(err => {
    throw Error(err.message);
});;

Middleware Compatibility Checklist

Middleware	Status	Notes
cors	✅ Working	Middleware tested and working as expected.
helmet	✅ Working	Middleware tested and working as expected.
compression	❌ Not Working	Middleware not working due to issues with triggering onHeaders event properly.
cookie-session	❌ Not Working	Middleware not functioning correctly; issues with session management and Set-Cookie.
express-session	❌ Not Working	Middleware incompatible; issues with session handling and storage.
serve-static	❌ Not Working	Middleware for serving static files not yet tested.
body-parser	✅ Working	Middleware tested and working as expected.
morgan	✅ Working	Middleware tested and working, logs requests correctly.
serve-favicon	⏳ Not Tested	Middleware for serving favicons not yet tested.
method-override	⏳ Not Tested	Middleware for method override not yet tested.
csurf	⚠️ Deprecated	Middleware deprecated; not tested.
multer	⏳ Not Tested	Middleware for file uploads not yet tested.

Native CMMV Middleware

CMMV provides native implementations for several common middlewares with enhanced performance optimizations. These native implementations are prefixed with @cmmv/ and include:

• @cmmv/body-parser (NPM)
• @cmmv/compression (NPM)
• @cmmv/cookie-parser (NPM)
• @cmmv/cors (NPM)
• @cmmv/etag (NPM)
• @cmmv/helmet (NPM)
• @cmmv/server-static (NPM)

Summary

• Working: cors, helmet, body-parser, and morgan have been tested and work as expected.
• Not Working: compression, cookie-session, and express-session have issues related to header management, session handling, or storage that need to be addressed.
• Not Tested: serve-static, serve-favicon, method-override, and multer have not been tested yet.
• Deprecated: csurf is deprecated and will not be tested.

Summary

• Working: cors, helmet, body-parser, morgan, serve-favicon, method-override, and multer have been tested and work as expected.
• Not Working: compression, cookie-session, express-session, and serve-static have issues related to header management, session handling, or file serving that need to be addressed.

If you encounter issues or have suggestions on how to improve compatibility, feel free to contribute or report them on GitHub.