jq对象数组转对象：curl响应ID重映射与结构转换需求

Got it, let's sort this out for you! Transforming that response data to map IDs and switch from an array to a key-value object is totally doable—here's how to pull it off in two common languages:

JavaScript (Frontend/Node.js) #

First, let's define your input data and ID mapping, then run the transformation:

// Your raw curl response data
const responseData = [
  { "list": [ { "value": 1, "id": 12 }, { "value": 15, "id": 13 }, { "value": -4, "id": 14 } ] },
  // Add other objects from your response here...
];

// Your ID-to-newID mapping
const idMap = { "12": "newId1", "13": "newId2", "14": "newId3" };

// Transform the data
const transformedData = responseData.map(item => {
  // Convert the list array to a key-value object using reduce
  const mappedList = item.list.reduce((acc, currentEntry) => {
    // Convert the numeric ID to a string to match the map's keys
    const newId = idMap[currentEntry.id.toString()];
    // Only add entries that have a valid mapping
    if (newId) {
      acc[newId] = currentEntry.value;
    }
    return acc;
  }, {});
  return { list: mappedList };
});

// Check the result
console.log(transformedData);

How this works: #

• map() loops through every top-level object in your response array
• reduce() builds a new object from the original list array, using the mapped ID as the key and the entry's value as the value
• We convert the numeric id to a string to ensure it matches the string keys in your idMap (this is a common gotcha!)

Python (Backend Scripting) #

If you're working with Python to process the response, here's an equivalent solution:

import json

# Your raw response data (parsed from curl output)
response_data = [
    {"list": [{"value": 1, "id": 12}, {"value": 15, "id": 13}, {"value": -4, "id": 14}]},
    # Add other objects here...
]

# Your ID mapping
id_map = {"12": "newId1", "13": "newId2", "14": "newId3"}

transformed_data = []
for item in response_data:
    mapped_list = {}
    for entry in item["list"]:
        # Convert numeric ID to string to match the map
        new_id = id_map.get(str(entry["id"]))
        if new_id:
            mapped_list[new_id] = entry["value"]
    transformed_data.append({"list": mapped_list})

# Print the formatted result
print(json.dumps(transformed_data, indent=2))

Key notes for Python: #

• We use a nested loop to iterate through each top-level object and its list entries
• id_map.get() safely checks for a matching ID (avoids errors if an ID isn't in the map)
• json.dumps() prints the result in a readable JSON format

Either of these solutions will output exactly the structure you need:

[ { "list": { "newId1": 1, "newId2": 15, "newId3": -4 } }, ... ]

内容的提问来源于stack exchange，提问作者Thomas