Set credentials dynamically using expressions
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Deborah
Description
How it works
This workflow shows how to set credentials dynamically using expressions. It accepts an API key via a form, then uses it in the NASA node to authenticate a request.
Setup steps
First, set up your NASA credential:
Create a new NASA credential.
Hover over API Key.
Toggle Expression on.
In the API Key field, enter {{ $json["Enter your NASA API key"] }}.
Then, test the workflow:
Get an API key from NASA
Select Test workflow
Enter your key using the form.
The workflow runs and sends you to the NASA picture of the day.
For more information on expressions, refer to n8n documentation | Expressions.
This workflow was created by Deborah and shared publicly on the n8n community template library. n8nFind indexes it for discovery — the workflow remains the property of its original creator.