Preface

This article is only for the principles of Internet of things connectivity in the new world 、 Preliminary understanding of the steps , Not as a final realization .

One 、 Simple understanding SDK and API The difference between ？

There's a sealed drink , It's called “SDK”.
There's a straw in the drink , The name of the straw is “API”.
Call you “XX System ”.
If you want to drink SDK Drinks in （ Having the system makes SDK The function of ）, You have to pass API This straw to achieve （ adopt API Connect your system to SDK tool kit ）, Otherwise you won't have a drink .
therefore ：
SDK＝ A software package with the features you want
API＝SDK The only interface on

Two 、 Use steps

1. Import and stock in

introduce ：

using NLECloudSDK;
using Newtonsoft.Json;

2. Code implementation ：

namespace WpfCLoud
{
    
    public partial class MainWindow : Window
    {
    
        NLECloudAPI api = new NLECloudAPI ("http://api.nlecloud.com");//  Pass in api Interface 
        AccountLoginDTO dto = new AccountLoginDTO ();//  Account login data transfer object （DTO： Data transmission object ）
        string Token = "";//  Define global variable storage Token Login token 
        dynamic Data;//  Defines all the universal variables used to receive the returned Json(【 Data returned from the web page 】Json: Data ultra lightweight data exchange format )
        string value;//  The number 
        public MainWindow ()
        {
    
        	InitializeComponent ();
 			dto.Account = "1111111111";//  For example, the variables in the log in transmission data class are written to the account number of the cloud platform  
			dto.Password = "aaaaaaaaaa";//  Write the cloud platform password to the variables in the login transport class 
			dto.IsRememberMe = true;//rememberMe
			Data = api.UserLogin (dto);//  Exchange for Token
		if (Data.IsSuccess ())
		{
    
	        //  Parsing returns Json data , extract Token token 
			Token = Data.ResultObj.AccessToken;
		}
		//  get data , equipment ID、 Sensor identification name api, Login token （Token）
		Data = api.GetSensorInfo (173736, "z_humidity", Token);
		// sensorData Data coming through 
		string SensorData = Data.ResultObj.Value.ToString ();//  If the value is not obtained, an error will be reported here ！
		value = SensorData;
	}
	
	// Button event 
	private void bt_get_Click (object sender, RoutedEventArgs e)
    {
    
	    //  Give Way label Display the value obtained 
   		label.Content = value;
    }

}

To learn more about linking cloud platforms, please click here ：link

I could have endured the darkness , If I have never seen light
But now , The sun makes my loneliness more desolate .