try streamed approach

app/models/symphony_reader.rb

@@ -9,12 +9,11 @@ class ResponseError < StandardError; end
   attr_reader :catkey
 
   def self.client
-    Faraday.new(headers: Settings.catalog.symphony.headers) do |conn|
-      conn.request :multipart
-      conn.request :url_encoded
-      conn.use FaradayMiddleware::Chunked
-      conn.adapter :net_http
-    end
+    Faraday.new(headers: Settings.catalog.symphony.headers) # do |conn|
+    #   conn.request :url_encoded
+    #   conn.use FaradayMiddleware::Chunked
+    #   conn.adapter :net_http
+    # end
   end
 
   def initialize(catkey:)
@@ -50,6 +49,22 @@ def client
   def symphony_response
     resp = client.get(format(Settings.catalog.symphony.json_url, catkey: catkey))
 
+    if resp.headers['transfer-encoding'] == 'chunked'
+      streamed = []
+
+      conn.get(format(Settings.catalog.symphony.json_url, catkey: catkey)) do |req|
+        # Set a callback which will receive tuples of chunk Strings
+        # and the sum of characters received so far
+        req.options.on_data = Proc.new do |chunk, overall_received_bytes|
+          puts "Received #{overall_received_bytes} characters"
+          streamed << chunk
+        end
+      end
+
+      resp.body = streamed.join
+      resp.status = 200
+    end
+
     if resp.status == 200
       validate_response(resp)
       return resp