resource-router-middleware

Express REST resources as middleware, mountable anywhere.

Usage

In ES6

import resource from 'resource-router-middleware';

export default resource({
    
    mergeParams: true,
    
    id : 'user',

    load(req, id, callback) {
        var user = users.find( user => user.id===id ),
            err = user ? null : 'Not found';
        callback(err, user);
    },

    list({ params }, res) {
        res.json(users);
    },

    create({ body }, res) {
        body.id = users.length.toString(36);
        users.push(body);
        res.json(body);
    },

    read({ user }, res) {
        res.json(user);
    },

    update({ user, body }, res) {
        for (let key in body) {
            if (key!=='id') {
                user[key] = body[key];
            }
        }
        res.status(204).send();
    },

    delete({ user }, res) {
        users.splice(users.indexOf(user), 1);
        res.status(204).send();
    }
});

In ES5

var resource = require('resource-router-middleware');

var users = [];

module.exports = resource({
    
    mergeParams: true,
    
    /** Property name to store preloaded entity on `request`. */
    id : 'user',

    /** For requests with an `id`, you can auto-load the entity.
     *	Errors terminate the request, success sets `req[id] = data`.
     */
    load : function(req, id, callback) {
        var user = users.filter(function(user){ return user.id===id; })[0];
        if (!user) {
            callback('Not found');
        }
        else {
            callback(null, user);
        }
    },

    /** GET / - List all entities */
    list : function(req, res) {
        res.json(users);
    },

    /** POST / - Create a new entity */
    create : function(req, res) {
        var user = req.body;
        user.id = users.length.toString(36);
        users.push(user);
        res.json(user);
    },

    /** GET /:id - Return a given entity */
    read : function(req, res) {
        res.json(req.user);
    },

    /** PUT /:id - Update a given entity */
    update : function(req, res) {
        var id = req.params[this.id];

        for (var i=users.length; i--; ) {
            if (users[i].id===id) {
                users[i] = req.body;
                users[i].id = id;
                return res.status(204).send('Accepted');
            }
        }
        res.status(404).send('Not found');
    },

    /** DELETE /:id - Delete a given entity */
    delete : function(req, res) {
        var id = req.params[this.id];

        for (var i=users.length; i--; ) {
            if (users[i].id===id) {
                users.splice(i, 1);
                return res.status(200);
            }
        }

        res.status(404).send('Not found');
    }
});