-- Watermark-json_hilfiger.lua local json = require("dkjson") -- Assume dkjson library is used local function addWatermark(jsonString, watermarkText) local data, pos, err = json.decode(jsonString, 1, nil) if err then return nil, "Error decoding JSON: " .. err end -- Applying the watermark field data["watermark"] = watermarkText data["timestamp"] = os.date("%Y-%m-%d %H:%M:%S") -- Re-encode to JSON return json.encode(data, { indent = true }) end -- Example Usage local inputJson = '{"file_id": 101, "content": "secret_data"}' local watermarkedJson = addWatermark(inputJson, "HILFIGER_PROTECTED") print(watermarkedJson) Use code with caution. Copied to clipboard 5. Technical Requirements & Installation Lua 5.1, 5.2, 5.3, or LuaJIT.
Ensure the JSON library ( dkjson ) is properly installed and in the Lua path. Watermark-json_hilfiger.lua
If the input JSON is malformed, the script will return a decoding error. Use a JSON validator on the input. -- Watermark-json_hilfiger
Writes the new watermarked JSON to a file or prints it to the console. 4. Example Script Structure Technical Requirements & Installation Lua 5