Guides HTTP Workflows Tutorial doesn't work - here is how to fix it.

[JarekLisowski]

I'm trying to create the HTTP workflow from the tutorial and found errors:

1. In "first Set Variable activity" there is:
   {{ Variables.QueryData.status ?? "all" }} | Liquid.
   This is wrong. Should be:
   {{ Variables.QueryData.status | default: "all" }}

?? is JS syntax.

2. HTTP Response content:
   First of all Task in JS is task (lowercase) so it should be:
   variables.Tasks
   But it still desn't work becasue it tries to serialize the .net types which are unknown so it throws the exception:
   System.ArgumentException, System.Private.CoreLib: Object of type '<>f__AnonymousType0#44[System.Int32,System.String,System.String,System.String][]' cannot be converted to type 'System.Collections.Generic.IEnumerable1[System.Int32]'.

The solution is to set content to
variables.Tasks
and syntax to Variable. Then it works.