Brendan Vanous
started a topic on Thu, 14 May 2015 at 2:06 PM
Question from a developer:
I need to write to a Key which is defined in a string, as part of a Cloud Script call. But each time I try this, I get the variable name as the Key. What's going on here, and how do I get this to work?
Best Answer
Brendan Vanous said on Thu, 14 May 2015 at 2:07 PM
Basically, JSON Keys are treated as strings, whether they're quoted or not. So if you have:
var keyString = "foo";
server.UpdateUserData({
PlayFabId: currentPlayerId,
Data: { keyString : keyString }
});
You'd get the Key/Value pair { "keyString" : "foo" }. Really irritating, right? Fortunately, there's a workaround. If you define it as an object like this, it works:
var keyString = "foo";
var dataPayload = {};
dataPayload[keyString] = "bar";
server.UpdateUserData({
PlayFabId: currentPlayerId,
Data: dataPayload
});
This results in the Key/Value pair { "foo" : "bar" }, which is what you're gong for. Note that you can't initialize it with the values, though. Defining dataPayload like this wouldn't work:
var keyString = "foo";
var dataPayload = { keyString, "bar" };
server.UpdateUserData({
PlayFabId: currentPlayerId,
Data: dataPayload
});
Yep, you guessed it - the keyString is now a Key, making the Key/Value pair { "keyString", "bar" } - not what you want.
1 Comment
Brendan Vanous said on Thu, 14 May 2015 at 2:07 PM
Basically, JSON Keys are treated as strings, whether they're quoted or not. So if you have:
var keyString = "foo";
server.UpdateUserData({
PlayFabId: currentPlayerId,
Data: { keyString : keyString }
});
You'd get the Key/Value pair { "keyString" : "foo" }. Really irritating, right? Fortunately, there's a workaround. If you define it as an object like this, it works:
var keyString = "foo";
var dataPayload = {};
dataPayload[keyString] = "bar";
server.UpdateUserData({
PlayFabId: currentPlayerId,
Data: dataPayload
});
This results in the Key/Value pair { "foo" : "bar" }, which is what you're gong for. Note that you can't initialize it with the values, though. Defining dataPayload like this wouldn't work:
var keyString = "foo";
var dataPayload = { keyString, "bar" };
server.UpdateUserData({
PlayFabId: currentPlayerId,
Data: dataPayload
});
Yep, you guessed it - the keyString is now a Key, making the Key/Value pair { "keyString", "bar" } - not what you want.
