I am trying to add additional functions users can use through the PQ Advanced editor on top of the published function for my connector. I have used this technique in other connectors but having trouble with getting the Connector to build when the published function has optional or no inputs. Here is the error message I get when building in VSCode with MakePQX:
Failed to display extension info due to [DataFormat.Error] We were unable to infer data source path information from the set of functions associated with the data source kind 'HelloWorld'., failed to execute c:\Users\fieldsj\.vscode\extensions\powerquery.vscode-powerquery-sdk-0.2.2-win32-x64\.nuget\Microsoft.PowerQuery.SdkTools.2.114.4\tools\PQTest.exe info --extension "d:\Source\Repos\PQ-HelloWorld\bin\AnyCPU\Debug\PQ-HelloWorld.mez" --prettyPrint
Here is a snip of the code I mocked up in a simple HelloWorld that triggers the same error:
[DataSource.Kind="HelloWorld", Publish="HelloWorld.Publish"]
shared HelloWorld.Contents = (optional message as text) =>
let
_message = if (message <> null) then message else "(no message)",
a = "Hello from HelloWorld: " & _message
in
a;
[DataSource.Kind="HelloWorld"]
shared HelloWorld.Message = (message as text) =>
let
a = "Hello from HelloWorld: " & message
in
a;
I only added the .Message function to a fresh project. If I remove "optional" on the .Contents input, it builds just fine. Without the .Message function, it builds fine even with the optional input on .Contents but as soon as you introduce another DataSource.Kind with a required input, the error gets thrown. Is there any way to have an optional input or no input for the published function but also have the additional functions that do require inputs?
