Where can I found, if exist, a list of all items name that I can use in a subscribe request to a EMA service (eg: DIRECT_FEED, ELEKTRON_DD)?
DIRECT_FEED is a dummy feed name used by our example Provider applications - this allows you to connect a Consumer Example to a Provider example and request dummy data. So, you can request a dummy RIC code (instrument name) and the provider will create a dummy record with a few sample fields using that RIC code.
ELEKTRON_DD is typically the service name used by most organisations for data from our Elektron Realtime feed - and also the default service name if you are connecting to our Elektron Realtime in Cloud service.
In terms of RIC codes of instruments available on ELEKTRON - there are over 5 million instruments carried on Elektron - so it is not practical to get a list of all 5 million+ item names.
In order to get a list of RIC codes that you may be interested in - you have a few of choices
Is there any way to get the data for only selected fid values with Elektron APi EMA java snapshot class as currently we see it gives the entire list of data for a particular service name and RIC feed value