How to pass arguments from Pipeline to Data Flow parameter of type 'map'

Question

If one has a data flow with a parameter of type map[string, string], how do you pass in the argument when calling from a pipeline. See image below.

If i'm not mistaken, you cannot create a mapping in Pipelines using '->' notation. I tried a few approaches such as making string templates and/or equivalent jsons but none of the approaches seem to work.

Answer 1

Hi @Hochmanj ,

Thanks for using Microsoft Q&A !!

I have tried passing a values to dataflow parameter (having data type as map(string,string)) and it works fine for me. When you select the DataFlow activity on Pipeline canvas you will be presented with the parameters defined for the specific data flow and you can then pass the values either using DataFlow Expressions and Pipeline Expressions.

When "DataFlow expressions" are used you can access the functions, parameters, or any other schema defined in your data flow and when you use "Pipeline Expressions" then you can refer to system variables, functions, pipeline parameters/variables. Also, pipeline expressions type does not need to match the parameters type as defined in Data Flow. Please refer to the documentation.
I have tried using both these ways and able to pass the values correctly against a map datatype. Please refer to the below gif.

Hope this helps. Please let me know if you have any questions.

Thanks
Saurabh

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