电源自动化：JSON 格式问题

Question

I am using excel to generate a JSON file via a power automate flow. I have most of the functionality working but am stuck on a formatting issue where lists are being outputted as objects.

This is the format I need: "_source": { "title": null, "first_name": { "value": "Tony", "source": "48fa2a08-9137-49fa-8a7d-1d85570b7e5d" }, "last_name": { "value": "Stark", "source": "48fa2a08-9137-49fa-8a7d-1d85570b7e5d" }, "full_name": "Tony Stark",...

This is the format I am getting: "_source": { "title": null, "first_name": [ { "value": "Tony", "source": "48fa2a08-9137-49fa-8a7d-1d85570b7e5d" } ], "last_name": [ { "value": "Stark", "source": "48fa2a08-9137-49fa-8a7d-1d85570b7e5d" } ], "full_name": ["Tony Stark"],...

I am composing this in the following way:

How do I get rid of the square brackets?

Any help would be greatly appreciated. TIA

Answer 1

The output result of your data operations for (eg) first_name is an array.

In order to remove the square brackets, you need to drill down and get the item you want from the array.

Typically, an array is an array because you potentially expect more than one item to exist but in your case, it looks like that's all you expect, therefore, you need to use an expression that will get the first item in the array.

To do that, you can wrap the “Output” from the Data Operations step (whatever that action actually is) in a first() expression.

That will return the first object in your array and remove the square brackets.