Hi. 

I just replaced Matterhorn 1.1. with Matterhorn 1.2 and I have noticed lots of 
changes to the Rest Endpoint API.  I think I also noticed some bugs.


To improve Matterhorn, I think is is necessary to document the Rest Endpoint 
API. API Changes should also be reflected in the "Release Notes". I think those 
are important - right? 

Assuming somebody improved / developed his capture agent or extension to 
Matterhorn (like his custom API, custom scheduler) - it will be a huge not to 
change the version from Matterhorn 1.1 to Matterhorn 1.2.
(a) you do not expect the API to change
(b) once it changes you cannot tell what changed
(c) once you design anything that supposed to work with Matterhorn, you do not 
have a clue how to use the REST Endpoints properly other than guessing or 
looking into the source code. 


Does anybody from Opencast community agrees with this ?
If there any way I could get a support on this one, so once it is written down 
- it will not change? So once Matterhorn will be upgraded to 1.3 all this work 
will not be just wasted? 



==========
Here is something I would like to start with /it's a simple example:

My capture agent is retrieving information about scheduler recordings. 
My CA Configuration is URL to Matterhorn/username and password. 
URL is: http://matterhorn:8080


So it gets the URL for Matterhorn and in 1.1.:

/scheduler/my_agent/calendar
I retrieve a ICalendar file. 
In Matterhorn 1.2. I think I need to change it to:

/recordings/calendars?agentid=my_agent
And the content of ICalendar file has also changed. 



Other than this, I have noticed that "agentid" is not quite agent's id. 
calls to:

/recordings/calendars?agentid=my_agent
/recordings/calendars?agentid=my
/recordings/calendars?agentid=agent

are not quite equivalent, but they all work. 
So what I actually need to do right now is to:


(1) query for /recordings/calendars?agentid=my_agent
(2) decode binary data (attachments)
(3) see if agentid in decoded data matches my agent
(4) handle appropriate events.


So what I would love to have is to specify:
 
1. what is field "agentid"
2. what is the return value of this query. 
3. what is field "seriesid"
4. is current behavior or this endpoint bogus or proper. 

5. a confirmation that this endpoint will not change in 1.3, 1.4, 1.5 so that 
if I create a solution using Matterhorn - I will not have to rewrite 20% of the 
code each time I upgrade Matterhorn. 


===========
Last think I do not quite understand, why the rest endpoint url's are inside 
configuration files. It looks like a problem in design. 
Imagine a browser with an option to configure HTML tags:

Option HTML language:
Tag that starts the HTML page:  HTML
Tag that starts a content of HTML page: BODY
Tag that starts a table: TABLE

and people changing it....

Rest endpoint not supposed to change unless it is necessary, right ? 


-Pawel

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