Rack 3 update: Call rewind on request body

Author: jochenehret

app/controllers/internal/app_crashed_controller.rb

@@ -26,7 +26,8 @@ def crashed(lrp_process_guid)
     private
 
     def crashed_request
-      payload = body.read
+      request.body.rewind
+      payload = request.body.read
       Oj.load(payload)
     rescue StandardError => e
       logger.error('diego.app_crashed.parse-error', payload: payload, error: e.to_s)

app/controllers/internal/app_readiness_changed_controller.rb

@@ -25,7 +25,8 @@ def readiness_changed(process_guid)
     private
 
     def readiness_request
-      payload = body.read
+      request.body.rewind
+      payload = request.body.read
       Oj.load(payload)
     rescue StandardError => e
       logger.error('diego.app_readiness_changed.parse-error', payload: payload, error: e.to_s)

app/controllers/internal/app_rescheduling_controller.rb

@@ -25,7 +25,8 @@ def rescheduling(process_guid)
     private
 
     def rescheduling_request
-      payload = body.read
+      request.body.rewind
+      payload = request.body.read
       Oj.load(payload)
     rescue StandardError => e
       logger.error('diego.app_rescheduling.parse-error', payload: payload, error: e.to_s)