Encode requests and decode responses as JSON.

This middleware requires poison (or other engine) as dependency.

Remember to add {:poison, ">= 1.0"} to dependencies (and :poison to applications in mix.exs) Also, you need to recompile tesla after adding :poison dependency:

mix deps.clean tesla
mix deps.compile tesla

Example usage

defmodule MyClient do
  use Tesla

  plug Tesla.Middleware.JSON # use poison engine
  # or
  plug Tesla.Middleware.JSON, engine: JSX, engine_opts: [strict: [:comments]]
  # or
  plug Tesla.Middleware.JSON, decode: &JSX.decode/1, encode: &JSX.encode/1
end

Options

• :decode - decoding function
• :encode - encoding function
• :engine - encode/decode engine, e.g Poison or JSX (defaults to Poison)
• :engine_opts - optional engine options
• :decode_content_types - list of additional decodable content-types