express-crudl

About

Motivation for the module is to provide simple and consistent structure to controllers handling CREATE, READ, UPDATE, DELETE and LIST operations to resources and their subresources.

Example controller

 
exports.name = "test";
exports.subresources = {
    'subroute': require('./subroute')
}
 
exports.before = function(req, res, next) {
  if(req.params.test_id) {
    Tests.load(req.params.test_id, function(error, test) {
      if(test) {
        req.test = test;
        return next();
      } else {
        return next(error || new Error("test "+req.params.test_id+" not found"));
      }
    });
  } else {
    return next();
  }
};
 
exports.read = function(req, res, next) {
  res.send(req.test);
};
 
exports.create = function(req, res, next) {
  Tests.create(req.body, function(err, test) {
    if(err) {
      return next(err);
    } else {
      res.send(test);
    }
  });
};

And to use the controllers:

var express = require('express')
  , crudl = require('express-crudl');
 
var app = express();
app.set('controller path', __dirname + '/controllers/');
// Will mount all the controllers to app and print the routes with verbose:true
crudl(app, {verbose: true});
console.log(app.controllers);

For an example directory structure for controllers see test/controllers

Api

Only has the one method for loading and mounting the routes, express-crudl(app, options);

options available are: verbose controller_path

Functions in controllers

.before(req, res, next)

Middleware that is executed before the routes and before subresources.

.error(error, req, res, next)

Error handler for the route, if you want to have controller specific error handler.

.create(req, res, next)

The function executed for CREATE operation, ie POST /name

.read(req, res, next)

The function executed for READ operation, ie GET /name/:name_id

.update(req, res, next)

The function executed for UPDATE operation, ie PUT /name/:name_id

.del(req, res, next)

The function executed for DELETE operation, ie DELETE /name/:name_id

.list(req, res, next)

The function executed for LIST operation, ie GET /name

Variables in controllers

.subresources

Object mapping the subresources in name:module pairs {'name': require('./name')}

.prefix

prefix this controller under this path, exports.prefix = '/resource'; exports.name = 'sub'; maps the controller to '/resource/:resource_id/sub';

.name

overrides the name of the controller, by default the file/directory name is used.

.options

options are .set(key, value) to the app created for handling the routes.

Notes

Inspired by express-mvc