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Connection refused when trying to connect local host with my own values

Unable to make calls to Localhost using Flutter, random port being assigned to HTTP GET callNo connection could be made because the target machine actively refused it?java.net.ConnectException - Connection Refused Android EmulatorLocal Host RefusedSocket -> Connection refused issueDart servers refusing connection in local networkAndroid Local Host Refused to connectReceiving data from localhost throws 'Connection Refused Error'Flutter gRPC error - OS Error: Connection refusedI want to connect rest api with my own <keyvaluepair> valuesHow to manage web socket connection refused errors?

0

I want to connect my localhost and take a token with my parameters.When I was connecting in my device with this code I have an error connection refused!

Here is my code.

class _MyHomePageState extends State<MyHomePage> 

 var formContent = 
 "grant_type": "1",
 "branchcode": "0",
 "password": "1",
 "username": "1",
 "dbname": "1",
 "dbuser": "1",
 "dbpassword": "1",
 "dbtype": "0"
 ;

 Future<String> getData() async 
 var postBody= json.encode(formContent);
 var response = await http.post(
 Uri.encodeFull("http://localhost:7070/api/v2/token"),
 body:postBody,
 headers: "Accept": "application/json");
 if(response.statusCode == 200)
 return String.fromCharCode(json.decode(response.body));
 else
 throw Exception('Failed');
 
 

 @override
 Widget build(BuildContext context) 
 return new Scaffold(
 body: new Center(
 child: new RaisedButton(
 child: new Text("Get The Data"),
 onPressed: getData,
 ),
 ),
 );
 
 

I cannot connect my localhost with my own values. I have an error like connection refused but I don't understand why ?

Unhandled Exception: SocketException: OS Error: Connection refused, errno = 111, address = localhost, port = 40109

android ios dart flutter socketexception

share|improve this question

edited Mar 8 at 11:00

Sabbir Ahmed

1957

asked Mar 8 at 9:44

Kaan KaramanoğluKaan Karamanoğlu

195

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You are aware that localhost is the phone/emulator and not your development PC? You can either use adb to create a redirect or use the public IP address of your PC to connect from the phone if the service you try to connect to listens on that IP and your phone is connected to the same network (WiFi).
  
  – Günter Zöchbauer
  Mar 8 at 9:47
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes ı know that so how can ı solve it ?
  
  – Kaan Karamanoğlu
  Mar 8 at 9:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  stackoverflow.com/questions/49855754/… might help and not using localhost as mentioned above.
  
  – Günter Zöchbauer
  Mar 8 at 9:52
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I cannot understand how ı am use this adb reverse —list command
  
  – Kaan Karamanoğlu
  Mar 8 at 9:55
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I don’t understand what ı am exactly do
  
  – Kaan Karamanoğlu
  Mar 8 at 9:57
  

  
  
  
  

 | 
show 1 more comment

0

I want to connect my localhost and take a token with my parameters.When I was connecting in my device with this code I have an error connection refused!

Here is my code.

class _MyHomePageState extends State<MyHomePage> 

 var formContent = 
 "grant_type": "1",
 "branchcode": "0",
 "password": "1",
 "username": "1",
 "dbname": "1",
 "dbuser": "1",
 "dbpassword": "1",
 "dbtype": "0"
 ;

 Future<String> getData() async 
 var postBody= json.encode(formContent);
 var response = await http.post(
 Uri.encodeFull("http://localhost:7070/api/v2/token"),
 body:postBody,
 headers: "Accept": "application/json");
 if(response.statusCode == 200)
 return String.fromCharCode(json.decode(response.body));
 else
 throw Exception('Failed');
 
 

 @override
 Widget build(BuildContext context) 
 return new Scaffold(
 body: new Center(
 child: new RaisedButton(
 child: new Text("Get The Data"),
 onPressed: getData,
 ),
 ),
 );
 
 

I cannot connect my localhost with my own values. I have an error like connection refused but I don't understand why ?

Unhandled Exception: SocketException: OS Error: Connection refused, errno = 111, address = localhost, port = 40109

android ios dart flutter socketexception

share|improve this question

edited Mar 8 at 11:00

Sabbir Ahmed

1957

asked Mar 8 at 9:44

Kaan KaramanoğluKaan Karamanoğlu

195

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  You are aware that localhost is the phone/emulator and not your development PC? You can either use adb to create a redirect or use the public IP address of your PC to connect from the phone if the service you try to connect to listens on that IP and your phone is connected to the same network (WiFi).
  
  – Günter Zöchbauer
  Mar 8 at 9:47
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Yes ı know that so how can ı solve it ?
  
  – Kaan Karamanoğlu
  Mar 8 at 9:48
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  stackoverflow.com/questions/49855754/… might help and not using localhost as mentioned above.
  
  – Günter Zöchbauer
  Mar 8 at 9:52
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I cannot understand how ı am use this adb reverse —list command
  
  – Kaan Karamanoğlu
  Mar 8 at 9:55
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  I don’t understand what ı am exactly do
  
  – Kaan Karamanoğlu
  Mar 8 at 9:57
  

  
  
  
  

 | 
show 1 more comment

I want to connect my localhost and take a token with my parameters.When I was connecting in my device with this code I have an error connection refused!

Here is my code.

class _MyHomePageState extends State<MyHomePage> 

 var formContent = 
 "grant_type": "1",
 "branchcode": "0",
 "password": "1",
 "username": "1",
 "dbname": "1",
 "dbuser": "1",
 "dbpassword": "1",
 "dbtype": "0"
 ;

 Future<String> getData() async 
 var postBody= json.encode(formContent);
 var response = await http.post(
 Uri.encodeFull("http://localhost:7070/api/v2/token"),
 body:postBody,
 headers: "Accept": "application/json");
 if(response.statusCode == 200)
 return String.fromCharCode(json.decode(response.body));
 else
 throw Exception('Failed');
 
 

 @override
 Widget build(BuildContext context) 
 return new Scaffold(
 body: new Center(
 child: new RaisedButton(
 child: new Text("Get The Data"),
 onPressed: getData,
 ),
 ),
 );
 
 

I cannot connect my localhost with my own values. I have an error like connection refused but I don't understand why ?

Unhandled Exception: SocketException: OS Error: Connection refused, errno = 111, address = localhost, port = 40109

android ios dart flutter socketexception

share|improve this question

edited Mar 8 at 11:00

Sabbir Ahmed

1957

asked Mar 8 at 9:44

Kaan KaramanoğluKaan Karamanoğlu

195

class _MyHomePageState extends State<MyHomePage> 

 var formContent = 
 "grant_type": "1",
 "branchcode": "0",
 "password": "1",
 "username": "1",
 "dbname": "1",
 "dbuser": "1",
 "dbpassword": "1",
 "dbtype": "0"
 ;

 Future<String> getData() async 
 var postBody= json.encode(formContent);
 var response = await http.post(
 Uri.encodeFull("http://localhost:7070/api/v2/token"),
 body:postBody,
 headers: "Accept": "application/json");
 if(response.statusCode == 200)
 return String.fromCharCode(json.decode(response.body));
 else
 throw Exception('Failed');
 
 

 @override
 Widget build(BuildContext context) 
 return new Scaffold(
 body: new Center(
 child: new RaisedButton(
 child: new Text("Get The Data"),
 onPressed: getData,
 ),
 ),
 );
 
 

Unhandled Exception: SocketException: OS Error: Connection refused, errno = 111, address = localhost, port = 40109

android ios dart flutter socketexception

android ios dart flutter socketexception

share|improve this question

edited Mar 8 at 11:00

Sabbir Ahmed

1957

asked Mar 8 at 9:44

Kaan KaramanoğluKaan Karamanoğlu

195

share|improve this question

edited Mar 8 at 11:00

Sabbir Ahmed

1957

asked Mar 8 at 9:44

Kaan KaramanoğluKaan Karamanoğlu

195

edited Mar 8 at 11:00

Sabbir Ahmed

1957

edited Mar 8 at 11:00

Sabbir Ahmed

1957

asked Mar 8 at 9:44

Kaan KaramanoğluKaan Karamanoğlu

195

asked Mar 8 at 9:44

Kaan KaramanoğluKaan Karamanoğlu

195