Pulp

1) Create a post sync notifier in pulp. There may be a pulp-admin way of doing this -> but Katello does it in the following way

path = /pulp/api/v2/events/, args = post,{"notifier_type_id":"http","notifier_config":{"url":"https://<SAT FQDN>/katello/api/v2/repositories/sync_complete?token=test"},"event_types":["repo.sync.finish"]},{"content_type"=>"application/json", "accept"=>"application/json", "Authorization"=>"OAuth oauth_body_hash=\"2jmj7l5rSw0yVb%2FvlWAYkK%2FYBwk%3D\", oauth_consumer_key=\"5N52BJQuADMGfHKMhzRV8NUfKUZvePw4\", oauth_nonce=\"b5L7Mkm0QXEi4WiM2j3Sdqz4CCPsdxnYClgBJ2dxyko\", oauth_signature=\"s%2BhM%2FjS%2FBMaFuu%2FpS%2FezpubMdcs%3D\", oauth_signature_method=\"HMAC-SHA1\", oauth_timestamp=\"1454430929\", oauth_version=\"1.0\"", "pulp-user"=>"admin"}

2) Sync any repo

Katello logs noticed the following error

2016-02-02T11:05:03 [app] [D] With body: {                                                                           
 |   "error": {"message":"'Content-Type: application/x-www-form-urlencoded' is unsupported in API v2 for POST and PUT
requests. Please use 'Content-Type: application/json'."}                                                             
 | }                                                                                                                 

So the sync complete notifier didnt set the content type correctly.