import json

def search_by_category(category, data):
    # Initialize an empty list to hold matching items
    matching_items = []
    for entry in data:
        # Check if the category matches
        if category in entry.values():
            matching_items.append(entry)

    # Convert dictonary of results into a list:
    list_of_matching_items = [list(d.keys())[0] for d in matching_items]
    return list_of_matching_items