express-fsr
v2.2.3
Published
Simple Pluggable File System Routing inspired by NuxtJS
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express-fsr
Simple Pluggable File System Routing for ExpressJS, inspired by NuxtJS's router.
Getting Started
Install express-fsr
as a dependency:
$ yarn add express-fsr
Add the router to your existing Express
app:
// src/index.js
const { createRouter } = require('express-fsr');
const path = require('path');
const routerOpts = {
// point to your routes directory
baseDir: path.join(__dirname, 'routes'),
};
const router = createRouter(routerOpts);
app.use('/', router);
Directory Structure
express-fsr
reads all files inside your routes
(or wherever you point it to) directory,
and builds the route based on the file's path and applies the exported verb (const get, post, put, // etc...
) as the handlers.
Router Config
| Field | Type | Description | Default |
| ------------------ | ----------------- | ------------------------------------------------------------ | ----------- |
| baseDir
| string
| Change the base directory to include. Path must be absolute. | /routes
|
| strictExports
| boolean
| Throw an error if a file exports an unknown variable. | false
|
| router
| object
| Options to pass to Express router. | undefined
|
| middlewares
| function\|array
| Middlewares to add to all router's routes. | undefined
|
| dirs
| array
| A string or regex array to test for allowed directories. | undefined
|
| excludeDirs
| array
| A string or regex array to test for excluded directories. | undefined
|
| includeRootFiles
| boolean
| Include files inside the root directory. | true
|
Sample Routes
├── routes/
│ ├── users/
│ │ └── _id/
│ │ ├── index.js
│ │ └── data.js
│ └── index.js
Sample Handlers
Important: delete
method is aliased as del
, since delete
is a reserved keyword.
// src/routes/index.js
// GET /
const get = (req, res) => {
res.json({ message: 'Hello world!' });
}
module.exports = { get };
// src/routes/users/_id/index.js
// GET /users/:id
const get = (req, res) => {
res.json({ userId: req.params.id });
}
// DELETE /users/:id
const del = (req, res) => {
res.json({ userId: req.params.id, deleted: 1 });
}
module.exports = { get, del };
// src/routes/users/_id/data.js
// GET /users/:id/data
const get = (req, res) => {
res.json({ userId: req.params.id, name: 'foo' });
}
// POST /users/:id/data
const post = (req, res) => {
res.json({ userId: req.params.id, ok: 1 });
}
module.exports = { get, post };
Middlewares
express-fsr
grabs middlewares from an exported variable middlewares
.
Usage
// Per-router middleware
const { createRouter } = require('express-fsr');
const middlewares;
const router = createRouter({ middlewares });
// Per-file middleware
const middlewares;
module.exports = { middlewares };
Per-file middlewares
// single middleware
const middlewares = async (req, res, next) => {
console.log('this route was called!');
next();
};
// multiple middlewares
const middlewares = [
myMiddleware1,
myMiddleware2,
];
Per-handler middlewares
// single/multiple middlewares
const middlewares = {
async get(req, res, next) {
console.log('get handler was called!');
next();
},
post: [myAuthMiddleware, async (req, res, next) => {
console.log('post handler authenticated!')
next();
}],
}
Advanced Usage
Router composition
You can include/exclude directories with each router, allowing you to easily compose multiple routes with custom middlewares.
const { Router } = require('express');
const { createRouter } = require('express-fsr');
// Base router where we attach our actual routes
const baseRouter = Router();
// Router where we add auth middlewares
const authRouter = createRouter({
// Only add routes inside /routes/auth/*
includeDirs: ['auth'],
// Attach our auth middlewares
middlewares: async (req, res, next) => {
// do authentication
console.log('request authenticated!');
next();
},
});
// Router where any requests can go through
const publicRouter = createRouter({
// Exclude our authenticated routes
excludeDirs: ['auth'],
// Optional: only enable if you have files like /routes/index.js
includeRootFiles: true,
});
// Attach our routers to our base router
baseRouter.use(authRouter);
baseRouter.use(publicRouter);
// Use our router
app.use('/api', baseRouter);
Typescript
This package is written using Typescript, so types are supported out of the box!
// Interfaces
import { Middlewares, RouterOpts } from 'express-fsr';
const middlewares: Middlewares = [];
const routerOpts: RouterOpts = {};
// Handlers
import { Middlewares, RequestHandler } from 'express-fsr';
export const middleware: Middlewares = {
async get(req, res, next) {
}
}
export const get: RequestHandler = async (req, res, next) => {
};