anchor.diff:  end_per_group(_, _Config) ->
       ok.
   
  +init_per_testcase(channel_create_with_app_name=_Case, Config) ->
  +    ChannelName = <<"test-app">>,
  +    Token = <<"test">>,
  +    [{channel_name, ChannelName}, {channel_token, Token} | Config];
   init_per_testcase(v2_canary_session=Case, Config) ->
       Channel = logplex_channel:create(atom_to_binary(Case, latin1)),
       ChannelId = logplex_channel:id(Channel),
  
positive.code: 
  end_per_testcase(_Case, Config) ->
      Config.
  
  v2_canary_session(Config) ->
      Api = ?config(api, Config) ++ "/v2/canary-sessions",
  
negative.code:     request(get, Url, Opts).
  
  post(Url, Opts) ->
      ct:pal("POST url=~p, opts=~p", [Url, Opts]),
      request(post, Url, Opts).
  
  request(Method, Url, Opts) ->
  