Help with Fixed Collection Data Transformation in Declarative Style
Hi everyone,
I’m currently developing a custom node in the declarative style, as recommended, but I’m struggling with transforming data so that my API endpoint receives it in the expected format.
I have a Fixed Collection like this:
{
displayName: 'Item Test',
name: 'itemTest',
placeholder: 'Add Item Test',
type: 'fixedCollection',
default: '',
typeOptions: {
multipleValues: true,
},
options: [
{
name: 'itemValues',
displayName: 'Item',
values: [
{
displayName: 'Name',
name: 'name',
type: 'string',
default: 'Name of the Item',
},
{
displayName: 'Quantity',
name: 'quantity',
type: 'number',
default: '',
description: 'Item quantity',
},
],
},
],
}
With this setup, the node output looks like this:
{
"itemTest": {
"itemValues": [
{ "name": "Item 1", "quantity": 1 },
{ "name": "Item 2", "quantity": 2 }
]
}
}
However, my API expects the data in this format:
{
"items": [
{ "name": "Item 1", "quantity": 1 },
{ "name": "Item 2", "quantity": 2 }
]
}
Is there a way to transform the structure in declarative mode, or do I need to switch to programmatic mode? Any help or best practices would be greatly appreciated!
Thanks! 
This post was written with the help of AI to improve clarity, as English is not my native language.