express-object-router

This library facilitate describing endpoints for REST API servers. The main feature of this library is determining method, path, controller, middlewares, and validation of query object, url object and body object with one object.

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Getting Started

Follow to install module

• npm install express-object-router --save
• Look example.

Example

More examples here

Library configuration

/* app.js */
const express = require('express');
const { createRouter } = require('express-object-router');
const path = require('path');
 
const customMiddleware = (req, res, next) => {
  req.user = {
    id: 10,
    name: 'John',
    age: 20,
  };
 
  next();
};
 
const app = express();
 
const router = createRouter({
  routesPaths: ['./routes/*.js'], /* routes paths  */
  pathsRelateTo: __dirname, /* set current work directory */
  routePrefix: 'v1', /* prefix before every route (i.e. /v1/route/path) */
  extraControllerProps: ['user'], /* properties which will be added to controller from req object */
  middlewaresSequence: ({ /* determining middlewares sequence for every route */
    PARAMS_VALIDATION,
    QUERY_VALIDATION,
    BODY_VALIDATION,
    ROUTER_MIDDLEWARES,
  }) => [
    PARAMS_VALIDATION,
    QUERY_VALIDATION,
    BODY_VALIDATION,
    customMiddleware,
    ROUTER_MIDDLEWARES,
  ],
  defaultValidation: { /* default routes validation */
    query: {
      accessToken: joi.string(),
    },
    body: {},
    params: {},
  },
  onReply: data => ({ data }), /* reply object builder */
});
 
app.use(router);
app.listen(8080);

Describing routes

/* routes/main.js */
const { GET, POST } = require('express-object-router/methods');
const joi = require('joi');
 
const testCtrl = ({
  req, /* express req object */
  res, /* express res object */
  next, /* express next function */
  reply, /* function for sending reply to client */
  error, /* function calls error */
  headers, /* headers object from req */
  params, /* req.params */
  body, /* req.body */
  query, /* req.query */
  user, /* property which determined in "extraControllerProps" */
}) => {
  reply({
    user,
    ok: 1,
  });
};
 
const testMiddleware = ({
  req, /* express req object */
  res, /* express res object */
  next, /* express next function */
  headers, /* req.headers */
  error, /* function calls error */
  pass, /* function pass to next middleware */
  props, /* values from "middlewaresProps" */
  setToReq, /* function assign property to req object */
  params, /* req.params */
  body, /* req.body */
  query, /* req.query */
}) => {
  pass();
};
module.exports = [
  {
    method: GET, /* http method */
    path: '/article', /* route path */
    controller: testCtrl, /* controller function */
    middlewares: [testMiddleware], /* middlewares for this route */
    middlewaresProps: {}, /* props for middleware */
    validation: { /* validation */
      query: {
        limit: joi.number(),
        offset: joi.number(),
      },
      body: {},
      params: {},
    },
  },
];

Changelog

[1.3.4] - 2018-05-25

Updated

• errorP now avaliable from package.
• reply now supports promises as argument

[1.3.3] - 2018-04-18

Added

• errorP fuction to controller params

[1.3.1] - 2018-04-09

Updated

• interface of build-docs has been changed
• fix apidoc text generation

[1.3.0] - 2018-04-06

Added

• Add info to the Route interface
• Add cli command oe-router build-docs (alpha)
• Remove spread operator for node 6 compatibility

[1.2.0] - 2017-12-20

Added

• Update package-lock.json
• Add body, params and query to middleware object of arguments

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MIT License

Copyright (c) 2017 Artur A.