express-handler-loader

handler-loader

Introduction

This module make handlers loading easier and it can validate some data format.

Installation

$ npm install --save express-handler-loader

Use

This module provide an interface object with two methods.

interface object

This interface method have two arguments,and the usefuness of this interface method is different when the number of arguments changed.

namespace(argument 0)

If you use method only with this argument,you can query namespace that created.This argument is string.

option(argument 1)

If you use method with two arguments,you can create a new namespace.This argument is a object with attributes pathname and exclude.Pathname is the path that handlers located those will be loaded.Exclude is the condition to filter the handlers.

resolve

This method is used to create an array include the absolute path of file.

option(argument)

This argument is the same with the above option.

remove

This method is used to delete that created.

namespace(argument)

This argument is the same with the above namespace.

namespace

This an object that has you loaded handlers as attributes and four prototype methods:$register,$testParams,$testQuery,$testBody,$isAllowed.These three methods use ajv schema as argument and return a handler to validate data format.

$register

It is used to register middlewave by yourself.

$testParams

It is used to validate the data format of req.params.

$testQuery

It is used to validate the data format of req.query.

$testBody

It is used to validate the data format of req.body.

$isAllowed

It is return status 405 when the clientsend a request that not match the mappedHTTP method.

Application Side

ajv

Documentation: https://www.npmjs.com/package/ajv

debug

Documentation: https://www.npmjs.com/package/debug

Example

const loader = require('express-handler-loader');
{resolve, remove} = loader;