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async-fetch-helper

Async Fetch Helper 2.13.2

AsyncFetchHelper is wrapper for async that using unirest or soap to fetch data with less code.

Install

$ npm install async-fetch-helper --save

Usage

var AsyncFetchHelper = require('async-fetch-helper');
var initSettings = {};
var asyncFetchHelper = new AsyncFetchHelper(initSettings);

asyncFetchHelper.need(['soap', 'rest']).then(function(soap, rest){
	return [
		soap('http://soapApi.com', function(client){
			client.method(paramObj);
		}),
		rest('get', 'http://restApi.com', params)
	];
}).end(function(results){
	console.log(results);
	// [soapResult, restResult]
})

AsyncFetchHelper initial - setting

• settings - Object;

The options we have:

• apiUrl - String; If your api have the same domain,your can setting this param
• connectionPool - Object; Set http agent object here

example : if you have two apis that url is [rest] http://api.com.tw/api1 and [soap] http://api.com.tw/api2

// settings
var initSettings = {
	"apiUrl" : "http://api.com.tw",
	"connectionPool": {
		"rest" : { "keepAlive": true, "keepAliveMsecs": 600000 , "maxSockets":5, "maxFreeSockets": 5},
		"soap" : { "keepAlive": true, "keepAliveMsecs": 600000 , "maxSockets":5, "maxFreeSockets": 5}
	}
};

AsyncFetchHelper initial - new function

var AsyncFetchHelper = require('async-fetch-helper');
var initSettings = {something : "setting at here, please view 'AsyncFetchHelper initial - setting'"};
var asyncFetchHelper = new AsyncFetchHelper(initSettings);

AsyncFetchHelper prototype Api

need(apiTypeList)

• apiTypeList - ArrayList; api type (rest, soap, etc...)

need(['soap', 'rest'])

The method will return constructor of AsyncFetchHelper at follow.

then(callback)

• callback - Function; The function "then" will apply the api type you need, and it must return an array that about the api request settings

then(function(rest, soap){
	return [rest(),soap()];
})

end(callback)

• callback - Function; The function will get all api response using array

end(function(result){
	console.log(results);
	// [soapResult, restResult]
})

AsyncFetchHelper static Api

AsyncFetchHelper.register(apiType, handler)

• apiType - String; Naming for handler

• handler - Function; Other method for call api defined by user

  This method will add your handler to method options of need, so you can call your handler by need(['youApiTypeName'])

AsyncFetchHelper.setConnectionPool(settings)

• settings - Object; Set http agent object here

{
	rest : { keepAlive: true, keepAliveMsecs: 600000 , maxSockets:5, maxFreeSockets: 5},
	soap : { keepAlive: true, keepAliveMsecs: 600000 , maxSockets:5, maxFreeSockets: 5}
}

AsyncFetchHelper methods by function need()

rest(method, url, params, returnKey, restCallback)

• method - String; Request type (GET, PUT, POST, etc...)
• url - String; api url
• params - Object; Request params, if request type is get or delete, it will be query uri, or it will be request body
• headers - Object; Optional; Request headers, ex: {"Content-Type":"application/x-www-form-urlencoded"}
• returnKey - String; Optional; Return value of key at first level in Result
• restCallback - Function; Optional; This function will get current request result, and it is like function then that must return an array that about the api request settings

soap(url, soapCallback)

• url - String; api url

• soapCallback - Function; This function will get soap client, and method wrapper

  method wrapper(params, returnKey, methodCallback)

  • params - Object; Optional; Request params
  • returnKey - String; Optional; Return value of key at first level in Result
  • restCallback - Function; Optional; This function will get current request result, and it is like function then that must return an array that about the api request settings