JSON response to text (string)
Hey guys,
I want to display the full JSON response from my Shopify Storefront API call inside a Voiceflow variable so that my AI agent can access and read the product data.
The API call works fine in the Test Request, I can see the product data (title, description, image, price, etc.).
However, when I capture the response into a variable (e.g. {rawProducts}), the variable ends up empty ([]) instead of showing the full JSON content.
Solutions that I've already tried:
1. Capturing data.products.edges directly into {rawProducts} or with response
2. Using JSON.stringify(rawProducts) in a Set block
3. Testing with different variable types (array, string, object)
So how can I correctly capture the entire JSON response from my Shopify Storefront API into a Voiceflow variable, so that it’s not empty and my AI agent can actually access the product information, please?
4 Replies
Here’s what usually trips people up 👇
1. In the Capture Response field you must prefix the path with response.
For a Shopify Storefront GraphQL call the JSON you see in the preview looks like:
So the correct path to the array of products is: (or
For a Shopify Storefront GraphQL call the JSON you see in the preview looks like:
So the correct path to the array of products is: (or
response
if you really need the whole object).
2. Map that path to a Voiceflow variable whose type can hold what you’re storing:
• For the whole object → create the variable as object (or string if you plan to JSON-stringify it).
• For just the edges array → create the variable as array.
3. Test again – the variable should now be populated. If you still want the entire payload as a single string for your AI step, add a Set (or Function) step right after and do:
Now the assistant can read it as plain text.
Common reasons it shows []:
• The path was entered without the leading response.
• The variable’s type doesn’t match (e.g. saving an array into a string variable).
Doc reference: “A path always starts with response
followed by the desired mapping path.” https://docs.voiceflow.com
Give that a try and your product data should come through intact! 👍Tried that and it still looks like that





Help please someone
???