您需要使用JSON库.有几种，一种是常用的一种是毒物(在

You need to use a JSON library. There are several, one commonly used one is Poison (there are others on hex):

string |> Base.url_decode64 |> Poison.decode!

这使用 Poison.decode！/2 函数.

每当我使用时，我都希望将其别名为JSON，以便在我的整个代码中都没有对Poison的引用:

Whenever I use I like to alias it as JSON so that I don't have references to Poison throughout my code:

alias Poison, as: JSON
string |> Base.url_decode64 |> JSON.decode!