While using my web application, I am executing a GET command to access a remote HTTP WebAPI service.
$http.get(url).then(function(data) { do_something(); });
When the WebAPI successfully returns data, everything functions as expected. However, in cases where it returns a 404 error (indicating no data to display), the corresponding function does not seem to trigger. How can I establish a callback for handling this situation?
$http.fetch(url).then(function(response) {
perform_action();
}, function(error) {
// custom error handling
if (error.status == 404) {
do_another_thing();
}
});
In order to handle 404 responses effectively, it is recommended to display a proper "not found" page. In AngularJS, you can achieve this by intercepting the response using the $injector service. By creating a service that checks for 404 responses and displays the appropriate page, you can enhance user experience.
angular.module('mymodule')
.service('APIInterceptor', function( $injector) {
return {
'request': function(config){
// Include request logic here.
},
'responseError' : function(response){
if (response.status === 404) {
$injector.get('$state').go('error_500');
}
return response;
}
};
});
$http retrieves the status code as its second argument.
$http.get(url)
.success(function(data, status) {
alert(status);
})
.error(function(data, status) {
alert('Error with status code: ' + status);
});
status – {number} – Indicates the HTTP status code of the response.
In case the status is an error code like 404, then the error block will be triggered.
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