Best practice to execute background task in c#

Question

I'd like to know what is the best practice to execute background task in c#?

For example, in my application I have a save() function, and when I execute this function, I'd like to run another task in background - in my case, using google maps geocoder to convert address in lat/lng.

Answer 1

I suggest that you collect and/or calculate all the information you need to save before you save it.

Consider this: If the conversion from address to lat/lng fails. Should the Save() method actually save the object or not? I would recommend that you put that logic somewhere else than in the Save() method.

You could do like this:

// example object
private ObjectToSave PrepareObjectForPersistance()
{
    return new ObjectToSave { LatLng = await ConvertAddressToLatLng(address) };
}

Then pass the object you want to save to the Save() method:

public void Save(ObjectToSave obejctToSave)
{
    // Do whatever has to be done to save your object
}