How do I map all items from an array value into JSON format?

How do I map the output values from an Array aggregator into individual variables to use as text in a JSON body output? Specifically, I have a webhook which results in a nested Array (generated_images) with anywhere between 4-16 Collections inside. Inside each Collection there is a field “url” with a unique url value. I am wanting to take all 4-16 urls and use them in an API call using a standard JSON body format of:
“image_urls”: [

I know how I can map each URL to a unique field, but is there a way I can set to extract the values and list them in this format, so whether there are 4 URLS or 16 URLS the API call still works?

You should be able to use the map function to get an array of just the urls.

{{ map(image_gen_results.1.generated_images; url) }}

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Hi @mgbernier

If your objective is to aggregate all the URLs in the following format: url1, url2, url3, … from all collections, please follow these steps:

  1. Utilize an iterator to iterate through the “image_gen_results” array.
  2. Use a next iterator to iterate through the “generated_images” array.
  3. Finally, employ a text aggregator to create a comma-separated list of URLs.

Will result a message
you can map this to json directly.

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