Execute multiple queries synchronously

[mohamednagy]

I'm doing multiple queries to get steps, calories, sleep and heart rates.
I want to execute those queries synchronsously so I can show the user a spinner till all data got retrieved.
How can execute those queries synchronsously ?

[dariosalvi78]

what od you mean "synchronously"? Queries are synchronous. If you mean "in parallel", it can't be done. See #294

[BenLaKnet]

You could serialize queries.

First query starts the spinner in success, you start too the second query and in the last, you stop spinner.

You could try that :

function getSyncDatasSteps(nbjours) {
	
	cordova.plugins.health.queryAggregated({
	  startDate: new Date(new Date().getTime() - (nbjours * 24 * 60 * 60 * 1000)),
	  endDate: new Date(), // now
	  dataType: 'steps',
	  bucket: 'day'
	}, function(data) {
		startSpinner();
                successSyncDatasCB(data);
		getSyncDatasCalories(nbjours);
		
	}, errorCB);
	
}

function getSyncDatasCalories(nbjours) {
	
	cordova.plugins.health.queryAggregated({
	  startDate: new Date(new Date().getTime() - (nbjours * 24 * 60 * 60 * 1000)),
	  endDate: new Date(), // now
	  dataType: 'calories',
	  bucket: 'day'
	}, function(data) {
		successSyncDatasCB(data);
		getSyncDatasGlycemie(nbjours);
	
		
	}, errorCB);

}

function getSyncDatasGlycemie(nbjours) {
	
	cordova.plugins.health.query({
	  startDate: new Date(new Date().getTime() - (nbjours * 24 * 60 * 60 * 1000)),
	  endDate: new Date(), // now
	  dataType: 'blood_glucose',
	  limit: 1000
	}, function(data) {
		
		successSyncDatasCB(data);
	        stopSpinner();
		
	}, errorCB);
}

successSyncDatasCB records all datas in an array.