Trans.nvim/lua/Trans/query/youdao.lua

local youdao    = require("Trans").conf.engine.youdao
local uri       = 'https://openapi.youdao.com/api'
local salt      = tostring(math.random(bit.lshift(1, 15)))
local appid     = youdao.appid
local appPasswd = youdao.appPasswd

local post = require('Trans.util.curl').POST

local function get_field(word)
    -- local to = isEn and 'zh-'
    local len     = #word
    local curtime = tostring(os.time())
    local input   = len > 20 and
        word:sub(1, 10) .. len .. word:sub(-10) or word

    -- sign=sha256(应用ID+input+salt+curtime+应用密钥)；
    local hash = appid .. input .. salt .. curtime .. appPasswd
    local sign = vim.fn.sha256(hash)

    return {
        q        = word,
        from     = 'auto',
        to       = 'zh-CHS',
        signType = 'v3',
        appKey   = appid,
        salt     = salt,
        curtime  = curtime,
        sign     = sign,
    }
end

return function(word)
    -- return result
    -- local field  = get_field(word)
    -- local output = post(uri, {
    --     body = field,
    -- })

    -- if output.exit == 0 and output.status == 200 then
    --     local result = vim.fn.json_decode(output.body)
    --     if result and result.errorCode == 0 then
    --         --- TODO :
    --     end
    -- end
end