具有iOS Swift請求時序輸出的Express.js服務器

我正在嘗試使用iOS Swift應用程序向Express.js服務器發出HTTP POST請求。在發佈請求中，我發送JSON數據，使用dict和SwiftyJSON創建JSON對象。但是，請求繼續超時。我認爲它與'body-parser'有關，這是我用來解析HTTP正文的。這裏是我的SWIFT代碼：具有iOS Swift請求時序輸出的Express.js服務器

override func viewDidLoad() { 
    super.viewDidLoad() 


    var dict = ["name": "FirstChannel", "verified": 0, "private": 1, "handle": "firstChannel", "subscribers": 0] as [String : Any] 
    var jsonData = JSON(dict) 

    do { 
     let post:NSData = try jsonData.rawData() as NSData 
     var postLength: NSString = String(post.length) as NSString 
     var url = URL(string: "http://10.0.0.220:3000/channel/createChannel")! 
     var request = NSMutableURLRequest(url: url) 
     request.httpMethod = "POST" 
     request.httpBody = post as Data 
     request.setValue(postLength as String, forHTTPHeaderField: "Content-Length") 
     request.setValue("application/json", forHTTPHeaderField: "Content-Type") 
     request.setValue("application/json", forHTTPHeaderField: "Accept") 

     NSURLConnection.sendAsynchronousRequest(request as URLRequest, queue: OperationQueue.main, completionHandler: { (resposne, data, error) in 
      if(error != nil) { 
       print(error) 
      } 
      else { 
       print(data) 
      } 
     }) 



    } 
    catch { 
     print(error.localizedDescription) 
    } 
}

這裏是代碼我在express.js路由器使用：

var express = require('express'); 
var router = express.Router(); 
var http = require('http'); 
var url = require('url'); 
var util = require('util'); 
var bodyParser = require('body-parser') 
var ObjectID = require('mongodb').ObjectID; 

router.use(bodyParser.json()); 
router.use(bodyParser.urlencoded({extended: true})); 

var mongoose = require('mongoose'); 
mongoose.connect('mongodb://localhost/my_db'); 

var channelSchema = mongoose.Schema({ 
    name: String, 
    verified: String, 
    private: String, 
    channelID: String, 
    handle: String, 
    subscribers: String 
}); 

var Channel = mongoose.model("Channel", channelSchema); 
router.post('/createChannel', bodyParser, function(req, res, next) { 
    req.body = true; 
    if(!req.body) return res.sendStatus(400); 
    var objID = new ObjectID(); 

    var newChannel = new Channel({ 
     name: req.body["name"], 
     verified: req.body["verified"], 
     private: req.body["private"], 
     channelID: objID, 
     handle: req.body["handle"], 
     subscribers: (req.body["subscribers"]) 
    }); 

newChannel.save(function(err, point){ 
    if(err) console.log(err); 
    else res.end(); 
}); 

});

如果有人可以幫助我，幫助這個POST請求成功，我將不勝欣賞它。謝謝！

來源

2017-05-27 Aidan Kaiser

您的路線成功後，您看起來並不像您送回HTTP 200 - 您只能處理錯誤。在路線末端添加一個res.end();（可能在數據庫調用的回調中）並重試。

來源

2017-05-27 20:03:34

嗨，謝謝你的回覆。我加了res.end（）;在DB保存調用結束時，但請求仍超時。任何其他想法？ –

你對我的迴應是空的是正確的。我還需要發送在我的數據庫保存回調中聲明的點對象。 –

具有iOS Swift請求時序輸出的Express.js服務器

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