xmake-docs/docs/api/scripts/extension-modules/core/base/json.md

core.base.json

Xmake provides a built-in json module, based on the implementation of lua_cjson, we can use it to quickly and directly interoperate between json and lua table.

We can use import("core.base.json") for direct import and use.

There are also some examples here: Json Examples

json.decode

• Get the lua table directly from the string decoding json

  import("core.base.json")
  local luatable = json.decode('[1,"2", {"a":1, "b":true}]')
  print(luatable)
  

  {
  1.0,
  "2",
  {
    b = true,
    a = 1.0
  }
  }
  

::: tip NOTE If there is null in it, you can use json.null to judge :::

json.encode

• Encode a lua table

  local jsonstr = json.encode({1, "2", {a = 1}})
  

It should be noted that if you need to encode null, you need to use json.null, for example

local jsonstr = json.encode({json.null, 1, "2", false, true})

json.loadfile

• Load the json file directly and parse it into a lua table

  local luatable = json.loadfile("/tmp/xxx.json")
  

json.savefile

• Save the lua table to the specified json file

  json.savefile("/tmp/xxx.json", {1, {a = 1}})