Merging/Consolidating Child Items of the same parent element

Questions
1

Hi,
I am trying to consolidate items that have similar parent item. I tried with item list node but wasn’t able to figure out if its the right option. I need item_attribute_values which have similar attribute_name to be consolidated under one element. For example, one Duration attribute name with 1-Hour and 2-Hours and one Diving Gear which has two attribute value items “Included” and “Excluded”.

Appreciate if someone can guide me in the right direction, thanks.

[
	{
		"attribute_name": "Kayak Type",
		"item_attribute_values": [
			{
				"attribute_value": "single-kayak",
				"abbr": "pa_kayak-type"
			}
		]
	},
	{
		"attribute_name": "Duration",
		"item_attribute_values": [
			{
				"attribute_value": "1-hour",
				"abbr": "pa_duration"
			}
		]
	},
	{
		"attribute_name": "Duration",
		"item_attribute_values": [
			{
				"attribute_value": "2-hours",
				"abbr": "pa_duration"
			}
		]
	},
	{
		"attribute_name": "Diving Gear",
		"item_attribute_values": [
			{
				"attribute_value": "Excluded",
				"abbr": "diving-gear"
			}
		]
	},
	{
		"attribute_name": "Diving Gear",
		"item_attribute_values": [
			{
				"attribute_value": "Included",
				"abbr": "diving-gear"
			}
		]
	}
]
2

Assuming the output is an array on multiple items instead of an array of one item. You can use the following function node.

const attributeNames = {}

for (const item of items) {
  if (attributeNames.hasOwnProperty(item.json.attribute_name)) continue
  else {
    attributeNames[item.json.attribute_name] = [];
  }
}

for (const item of items) {
   attributeNames[item.json.attribute_name].push(...item.json.item_attribute_values) 
}

return [
  {
    json: {
      ...attributeNames,
    }
  }
]
Example workflow
3

@RicardoE105 Thanks a lot for your continuous support… Its close to what I am trying to achieve, two things:

  • The function returns a single list/result, I need to send one HTTP request for each attribute name + attribute values (same structure as the json example I provided)
  • The rest api I am using expects to have attribute name, the function you shared strips the attribute name/key (same structure as the json example I provided)
4

Gotcha. In that case, the function below should do it:

const attributeNames = {}

for (const item of items) {
  if (attributeNames.hasOwnProperty(item.json.attribute_name)) continue
  else {
    attributeNames[item.json.attribute_name] = [];
  }
}

for (const item of items) {
   attributeNames[item.json.attribute_name].push(...item.json.item_attribute_values) 
}

return Object.keys(attributeNames).map(attributeName => ({ json: { attribute_name: attributeName, item_attribute_values: attributeNames[attributeName]   } }))
Example workflow
1 Like
5

@RicardoE105 Thanks a lot, its exactly what I am looking for, thanksss.