Error while checking if URL is exists in Flutter
115
Would something like this work for what you want?
Future<bool> _checkUrl(String url) async {
try {
http.Response _urlResponse = await http.get(Uri.parse(url));
return _urlResponse.statusCode == 200;
// return _urlResponse.statusCode < 400 // in case you want to accept 301 for example
} on SocketException {
return false;
}
}
Comments
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Superjay 10 months
I want to check that the url exists or not.
Fuction:
Future _checkUrl(String url) async { http.Response _urlResponse = await http.get(Uri.parse(url)); if (_urlResponse.statusCode == 200) { return true; } else { return false; } }
Call:
_checkUrl("https://stackoverf").then((value) => { print(value) });
It works when I give
https://fonts.google.com/?category=Sans+Serif
(returns true) orhttps://stackoverflow.com/qu
(returns false).But when I try with
https://stackoverf
which is not valid, it gives me[ERROR:flutter/lib/ui/ui_dart_state.cc(209)] Unhandled Exception: SocketException: Failed host lookup: 'stackoverf' (OS Error: No address associated with hostname, errno = 7)
.How to make
_checkUrl
returns false with this call?-
jamesdlin almost 2 yearsHave you tried catching the exception instead of leaving it unhandled?
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gretal almost 2 yearsREFER HERE: URL CHECK
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