Net

Net is a HttpRequest wrapper written in Swift

Features

• GET, POST, PUT, DELETE method
• Powerful request params: nested params, number, string, dic, array, image, data
• Json, Image, Xml Response
• Download file: resume, suspend, cancel
• Upload file, data, params(multi-part)
• Progress closure
• Background donwload, upload
• Authentication
• Batch of operations
• BaseURL
• Customizable header

Demo app

Usage

Use one of the following methods to create a Net instance

// without baseURL
let net = Net()

// with baseURL
let net = Net(baseUrlString: "http://www.puqiz.com/") 

HttpRequest

GET Request

let url = "get_path"
let params = ["integerNumber": 1, "doubleNumber": 2.0, "string": "hello"]

net.GET(url, params: params, successHandler: { responseData in
		let result = responseData.json(error: nil)
		NSLog("result \(result)")
	}, failureHandler: { error in
		NSLog("Error")
	})

// you can also make a request with absolute url
let url = "http://www.puqiz.com/get_path"
net.GET(absoluteUrl: url, params: params, successHandler: { responseData in
		let result = responseData.json(error: nil)
		NSLog("result \(result)")
	}, failureHandler: { error in
		NSLog("Error")
	})

You can also use nested params

// nested params
let params = ["string": "test",
            "integerNumber": 1,
            "floatNumber": 1.5,
            "array": [10, 20, 30],
            "dictionary": ["x": 100.0, "y": 200.0],
            "image": NetData(pngImage: img, filename: "myIcon")]

By using responseData in sucessHandler closure you can quickly

• get json dictionary
• get image
• parse xml

for GET, POST, PUT, DELETE request.

// get json dictionary from response data
let jsonDic = responseData.json(error: error)

// get image from response data
let image = responseData.image()

// parse xml with delegate
let result = responseData.parseXml(delegate: self)

POST Request

Net will automatically check your params to send request as a URL-Encoded request or a Multi-Part request. So you can easily post with number, string, image or binary data.

• URL-Encoded Request

let url = "post_path"
let params = ["string": "test", "integerNumber": 1, "floatNumber": 1.5]
        
net.POST(url, params: params, successHandler: { responseData in
		let result = responseData.json(error: nil)
		NSLog("result: \(result)")
	}, failureHandler: { error in
		NSLog("Error")
	})

• Multi-Part Request

let url = "post_path"
let img = UIImage(named: "puqiz_icon")
        
let params = ["string": "test", "integerNumber": 1,
            "icon": NetData(pngImage: img, filename: "myIcon")]
        
net.POST(url, params: params, successHandler: { responseData in
		let result = responseData.json(error: nil)
		NSLog("result: \(result)")
	}, failureHandler: { error in
		NSLog("Error")
	})

PUT Request

let url = "put_path"
let params = ["string": "test", "integerNumber": 1, "floatNumber": 1.5]
        
net.PUT(url, params: params, successHandler: { responseData in
		let result = responseData.json(error: nil)
		NSLog("result: \(result)")
	}, failureHandler: { error in
		NSLog("Error")
	})

DELETE Request

let url = "delete_path"
let params = ["id": 10]
        
net.DELETE(url, params: params, successHandler: { responseData in
		NSLog("result: \(result)")
	}, failureHandler: { error in
		NSLog("Error")
	})

Task

Before using download/upload function you have to call setupSession method to setup the session.

// setup session without backgroundIdentifier
net.setupSession()

To perform background downloads or uploads, you have to call setupSession method with a background identifier string. Then your download/upload tasks can be run even when the app is suspended, exits or crashes.

// setup session with backgroundIdentifier
net.setupSession(backgroundIdentifier: "com.nghialv.download")

// you can set eventsForBackgroundHandler closure
// this closure will be invoked when a task is completed in the background
net.eventsForBackgroundHandler = { urlSession in
		urlSession.getDownloadingTasksCount{ downloadingTaskCount in
		if downloadingTaskCount == 0 {
			NSLog("All files have been downloaded!")
		}
	}
}

Download

let downloadTask = net.download(absoluteUrl: url, progress: { progress in
		NSLog("progress \(progress)")
	}, completionHandler: { fileUrl, error in
		if error != nil {
			NSLog("Download failed")
		}
		else {
			NSLog("Downloaded to  : \(fileUrl)")
		}
	})

// you can control your task
downloadTask.resume()
downloadTask.suspend()
downloadTask.cancel()

Upload

• Upload with file path

let task = net.upload(absoluteUrl: url, fromFile: file, progressHandler: { progress in
		NSLog("progress \(progress)")
	}, completionHandler: { error in
		if error != nil {
			NSLog("Upload failed : \(error)")
		}
		else {
			NSLog("Upload completed")
		}
	})

• Upload with data

let yourData = NSData(...)
        
net.upload(absoluteUrl: url, data: yourData, progressHandler: { progress in
		NSLog("progress: \(progress)")
	}, completionHandler: { error in
		NSLog("Upload completed")
	})

• Upload with params

let image = UIImage(named: "image_file")
let imageData = UIImagePNGRepresentation(image)
let params = ["number": 1, "string": "net", "data": imageData]

net.upload(absoluteUrl: imgUrl, params: params, progressHandler: { progress in
		NSLog("progress: \(progress)")
	}, completionHandler: { error in
		NSLog("Upload completed")
	})

By default, the upload task will be performed as POST method and

• Content-Type = application/octet-stream (upload with file or data)
• Content-Type = multipart/form-data (upload with params)

But you can configure the upload task before resuming.

// set method
yourUploadTask.setHttpMethod(.PUT)

// set header field
yourUploadTask.setValue(value: "your_value", forHttpHeaderField: "header_field")

Integration

Just drag Net folder to the project tree