Using angularjs has led me to incorporate these ng-init calls in my partials:
<div ng-init="invited()">
Within my controller, the structure of the invited call includes a gapi asynchronous call:
$scope.invited = function () {
gapi.client.conference.invited().
execute(function(resp){
$scope.$apply(function() {
if (resp.error){
$log.error('An Error Occurred');
}
else {
$log.info("Successful");
$scope.invitedHangouts = []
$scope.invitedHangout=[]
angular.forEach(resp.items, function(invitedHangout){
$scope.invitedHangouts.push(invitedHangout);
});
}
});
});
};
The issue arises when I refresh the page containing the above partial, resulting in a TypeError: Cannot read property 'invited' of undefined.
Fascinatingly, after refreshing and encountering the error, navigating away and returning to the same partial with ng-init leads to successful execution. The output displays "Successful" alongside the correct information.
Why does this TypeError occur upon refreshing, only to be resolved by navigating away and back to the page?
My assumption is that the backend server code - specifically, the gapi which houses the invited() function I created in my Python code - may not have fully loaded yet.
Based on my observation, the successful execution upon returning to the page hints at a delay in front-end calling the backend before initialization. However, the response differs from what I expect when deliberately misspelling the gapi call for a nonexistent function in the backend.
When typing out an incorrect gapi call like so: gapi.client.conference.boomshakalaka(), results initially mirror the initial TypeError. Yet, upon returning to the page, a different error surfaces: TypeError: gapi.client.conference.boomshakalaka is not a function
This transition prompts contemplation on how the system distinguishes the non-functionality of boomshakalaka when it seemingly hasn't fully loaded the backend. Shouldn't both scenarios yield similar errors upon page refresh?
Perhaps there's a transitional phase between loading specific sections of gapi.client.conference on the backend, hampering the recognition of missing functions. How can I enforce synchronization between frontend initiation and backend completion? This discrepancy in error occurrence post-refresh versus post-navigation remains perplexing.
Any insights or suggestions are welcomed!