check that the server response has a JSON content-type

1 files changed, 8 insertions, 2 deletions

diff --git a/lib/polyjuice/client/endpoint.ex b/lib/polyjuice/client/endpoint.ex
index b75ee6c..41c0a86 100644
--- a/lib/polyjuice/client/endpoint.ex
+++ b/lib/polyjuice/client/endpoint.ex
@@ -87,8 +87,14 @@ defmodule Polyjuice.Client.Endpoint do
         ) :: any
   def parse_response(%{} = endpoint_args, status_code, headers, body)
       when is_integer(status_code) and is_list(headers) and is_binary(body) do
-    # FIXME: check if content type is "application/json"
-    with {:ok, json} <- Jason.decode(body) do
+    # make sure it's JSON content
+    with {_, "application/json"} <-
+           Enum.find(
+             headers,
+             {nil, nil},
+             fn {name, _} -> String.downcase(name, :ascii) == "content-type" end
+           ),
+         {:ok, json} <- Jason.decode(body) do
       case status_code do
         200 ->
           Polyjuice.Client.Endpoint.BodyParser.parse(endpoint_args, json)