Surprising behavior when setting a “type” key in Swift SDK parameters payload

[jaanus]

I’m not sure if this is a bug or expected behavior, and whether the error is in the software, or between chair and keyboard with the user (me 😄) but I had a WTF moment today when working with the Swift SDK.

I had a call like this:

TelemetryDeck.signal("someSignalName", parameters: ["type": "someType"])

In the web UI in recent signals, I was expecting to see a signal with name "someSignalName" having a parameter of "type" with value "someType".

Instead, I saw a signal with name "someType" 🤯

I guess if I set a custom parameter with key "type", it just overwrites the signal name. This was unexpected to me.

I’m not sure what would be the expected behavior here. Since I was developing in Xcode in debug mode as we all should before deploying things live, I would have been fine with the SDK either crashing with fatalError, or warning something in the console, if I try to use a “reserved” name as a custom payload key.