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Resource

Method

Description/Payload schema/Response schema

api/sessions

GET(It might make sense for this to return only the current session, but in theory it would return all sessions that the current session is allowed to access, so for an administrator, it might return all open sessions. An individual session would be accessed at GET api/sessions/SESSIONID.)

api/sessions

POSTParameters: ?token=API_TOKEN

api/sessions/SESSIONID

DELETEor


DELETE api/sessions?session=SESSIONID (get SESSIONID from api/sessions)api/users

GET

 

api/users/USERID/messages

GET

(get USERID from api/session)

api/users/USERID/messages

GET

(long-poll?) should support/encourage a stream-based interface

api/users/USERID/followees

GET 

api/users/USERID/followers

GET 

api/users/USERID/followees/USERID2USERID

POST,DELETE

or POST api/users/USERID/followees?user=USERID2

api/users/USERID/followees/USERID2

DELETE

or DELETE api/users/USERID/followees?user=USERID2

api/users/USERID/tracks

GET

 

api/users/USERID/tracks

POST

Parameters: ?track=TEXT_TO_TRACK

,POST

api/users/USERID/tracks/TRACKID

DELETE 

api/users/USERID/actions

GET

(Actions probably don't make sense outside of the context of a specific user.)

api/users/USERID/actions

POST

Parameters: ?name=NAME&test=TEST&action=ACTION

,POST

api/users/USERID/actions/ACTIONID

PUTParameters: ?enabled=true|false (This is actually a general outlet to update any attribute of an action, including whether or not it is enabled.)

api/users/USERID/actions/ACTIONID

DELETE 

api/messages/MESSAGEID

GETGets a particular message. ,PUT?,DELETE?

api/messages

POST

parameters: message=MESSAGE_BODY&via=CLIENT&tags=TAGS&metadata=XML&replyto=MESSAGEID

api/messages/MESSAGEID

PUT

(payload the same as POST)

api/messages/MESSAGEID

DELETE

 

api/tags

GET

Return all of the tags, or user-specific tags (GET api/tags/USERID?) and let the front-end decide what to do with it.

api/tags/TAGID

GET

Gets the information about a particular tag

api/conversations/CONVERSATIONID

GET 

One point to note is that most many HTTP clients do not currently support the "PUT" or "DELETE" methods, so these may have to be simulated through POST methods with an extra parameter. I think that because of the close mapping to resource verbs, is worth using these methods in the specification and defining the simulation method for the entire API separately.

...

  • ESME API instance (api/)
    • Sessions (api/sessions)
    • Users (api/users)
      • Messages posted by a user (api/users/USERID/messages) (1)
      • Users followed by a user (api/users/USERID/followees)
      • Users following a user (api/users/USERID/followers)
      • Trackers belonging to a user (api/users/USERID/tracks)
      • Actions belonging to a user (api/users/USERID/actions)
    • Messages (api/messages) (1)
    • Tags (api/tags) (1)
    • Conversations (api/conversations) (1)
    • Pools (api/pools) (1)
      • ?
    • Searches ?? (1)
    • Trends ??

(1) Stream interface should be available and use should be encouraged

Each of these bullets represents a set of objects. The resource representing an individual object lives at api/objects/OBJECTID. For example, api/sessions/SESSIONID. As much as is reasonable, one would expect to be able to GET (read), POST (create), PUT (update/amend), or DELETE (delete) any individual member of each of these object sets. Going through each of these objects to ask what it would mean to create, read, update, or delete that object may reveal holes in the existing API, some of which I have filled in above.

...

  1. Is the use of HTTP sessions necessary? Is it desirable?
  2. Request signing methods?
  3. Payload and response schemas must be defined
  4. Should API contain admin functions?
  5. Webhooks (http://blog.webhooks.org/)
    • ESME has webhooks as part of its actions framework, but we may want to document their existence as part of the API, and possibly improve the functionality if there are use cases (http://incubator.apache.org/esme/actions.html)
  6. What is a conversation?
  7. Authorization approach (see above)