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HTTP client library, with support for middleware and multiple adapters.

Security advisory: This version has known vulnerabilities. View advisories
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tesla lib tesla middleware json json_adapter.ex
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lib/tesla/middleware/json/json_adapter.ex 

if Code.ensure_loaded?(JSON) do

  defmodule Tesla.Middleware.JSON.JSONAdapter do

    @moduledoc false

    # An adapter for Elixir's built-in JSON module introduced in Elixir 1.18

    # that adjusts for Tesla's assumptions about a JSON engine, which are not satisfied by

    # Elixir's JSON module. The assumptions are:

    # - the module provides encode/2 and decode/2 functions

    # - the 2nd argument to the functions is opts

    # - the functions return {:ok, json} or {:error, reason} - not the case for JSON.encode!/2

    #

    # We do not support custom encoders and decoders.

    # The purpose of this adapter is to allow `engine: JSON` to be set easily. If more advanced

    # customization is required, the `:encode` and `:decode` functions can be supplied to the

    # middleware instead of the `:engine` option.

    def encode(data, _opts), do: {:ok, JSON.encode!(data)}

    def decode(binary, _opts), do: JSON.decode(binary)

  end

end