Error "No address associated with hostname" from my flutter app #5776
Replies: 6 comments 24 replies
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How have you initialized your Appwrite client within your Flutter code? |
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Yes and I am able to create a document also . after creating the document. i am getting this error . |
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Can you share those code parts? |
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class AppWriteConstants {
static const String project = '';
static const String endpoint = 'https://cloud.appwrite.io/v1';
static const String databaseId = '';
static const String collectionId = '';
}
final client = Client()
.setEndpoint(AppWriteConstants.endpoint)
.setProject(AppWriteConstants.project)
.setSelfSigned(status: true);
ChangeNotifierProvider(
create: (context) => ChatProvider(
realtime: Realtime(client),
database: Databases(client),
),
),these are the code snippets |
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Have you added |
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Can you share the code? Or a link to it |
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its a smaller portion of a bigger project. let me extract that code snippets |
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//initialize in the main class
//Initialize AppWrite
final client = Client()
.setEndpoint(AppWriteConstants.endpoint)
.setProject(AppWriteConstants.project)
.setEndPointRealtime(AppWriteConstants.endpoint)
.setSelfSigned(status: true);
//Provider declaration in main class
ChangeNotifierProvider(
create: (context) => ChatProvider(
realtime: Realtime(client),
database: Databases(client),
),
),
//appwrite constants class. ( these all values I have removed )
class AppWriteConstants {
static const String project = '';
static const String endpoint = 'https://cloud.appwrite.io/v1';
static const String databaseId = '';
static const String collectionId = '';
static const String apiKey =‘’;
}
//chat provider
import 'package:cdrt/appwrite_constants.dart';
import 'package:cdrt/models/chat_message.dart';
import 'package:flutter/material.dart';
import 'package:appwrite/appwrite.dart';
class ChatProvider extends ChangeNotifier {
final Realtime realtime;
final Databases database;
final String collectionId = AppWriteConstants.collectionId;
List<ChatMessage> _messages = [];
List<ChatMessage> get messages => _messages;
ChatProvider({
required this.realtime,
required this.database,
}) {
//final subscription = realtime.subscribe( [collectionId]);
final subscription = realtime.subscribe(
[
'databases………collections……….documents’. // here also I have removed the ids
],
);
subscription.stream.listen((event) {
final senderId = event.payload['senderId'];
final senderName = event.payload["senderName"];
final content = event.payload["content"];
final timestamp = DateTime.now();
final chatMessage = ChatMessage(
senderId: senderId,
senderName: senderName,
content: content,
timestamp: timestamp,
);
_messages.add(chatMessage);
notifyListeners();
});
}
void sendMessage(
String senderId,
String senderName,
String content,
String documentId,
) async {
final doc = await database.createDocument(
databaseId: AppWriteConstants.databaseId,
collectionId: collectionId,
documentId: documentId,
data: {
'senderId': senderId,
'senderName': senderName,
'content': content,
},
);
if (doc != null) {
final message = ChatMessage(
senderId: senderId,
senderName: senderName,
content: content,
timestamp: DateTime.now(),
);
_messages.add(message);
notifyListeners();
}
}
}
//in chat room page I have these codes
Expanded(
// child: Text(
// 'Welcome to Chat Room',
// style: TextStyle(fontWeight: FontWeight.w600, fontSize: 16),
// ),
child: ListView.builder(
itemCount: chatProvider.messages.length,
itemBuilder: (context, index) {
final message = chatProvider.messages[index];
return ListTile(
title: Text('${message.senderName}: ${message.content}'),
subtitle: Text(message.timestamp.toString()),
);
},
),
),
//on send button click
onPressed: () {
final message = _messageController.text.trim();
if (message.isNotEmpty) {
chatProvider.sendMessage(
authData.userEmail!,
authData.userName!,
message,
documentId,
);
_messageController.clear();
}
}, |
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Okay, .setEndPointRealtime(AppWriteConstants.endpoint)In general, you don't even need to set it up, If you like to set it up - It's not needed - then do it like this class AppWriteConstants {
static const String project = '';
static const String endpoint = 'https://cloud.appwrite.io/v1';
static const String endpointRealtime = 'https://cloud.appwrite.io/v1/realtime';
static const String databaseId = '';
static const String collectionId = '';
}
...
.setEndPointRealtime(AppWriteConstants.endpointRealtime) |
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both i have tried but same issue . |
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@vnjayakumar, FYI, it's best to wrap code in backticks to format a bit nicer. You can use 1 backtick for inline code (https://www.markdownguide.org/basic-syntax/#code) and 3 backticks for multiline code (https://www.markdownguide.org/extended-syntax/#syntax-highlighting. Also, if you're still having trouble, I recommend creating a support post on our Discord server as it would be much easier to troubleshoot via chat than in a GitHub Discussion. |
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So i have the same problem, I am using vscode and there is a breakpoints in the run and debug untick "All Exception" and "Uncaught Exception" that all now its working |
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untick "All Exception" is good，but tick "All Exception" is error |
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I have same problem |
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why this error "No address associated with hostname" from my flutter app. the error is in socket_patch.dart file lookup method
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