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IBM Connections application development state of the union - part 1

IBM Connections has been on the market for a lot of time now and has always been a real strong player when it comes to application development. I thought it was time to review where we are application development wise over what will probably be a couple of posts. First off is API's...

IBM Connections is and has always been strong from the point of API's - there is an API for almost all areas of the product and always has. I think IBM Connections was the first product (maybe still the only one) that was built by IBM Collaboration Solutions using an API first approach or at least with a strong emphasis on API's.

The API's are extensive and are pretty straight forward to use. The main caveat about the IBM Connections API's is that they were designed a looooong time ago and hasn't been updated since. I went to the documentation to check and the majority of the API's hasn't changed one bit since v. 2.5. This means they are still using the once cool Atom publishing protocol using lots of XML and lots of namespaces. Stability is very nice but an XML based API is really appdev unfriendly these days and the use of namespaces makes it even worse and difficult to handle - you either handle the complexity or you simply choose the parse without namespaces. Extracting data is either done using XPath or string parsing none of which is easy or performs well and again the namespaces makes XPath notoriously difficult.

This being said there is one exception to the XML based nature of the API's. When Activity Streams were added in IBM Connections 4.5 it was brought to market with a JSON based API and is still the only component in the IBM Connections suite using JSON based API's. Due to its roots in OpenSocial the API was however hard to grasp and I don't think it got much traction despite my best efforts to make it approachable. My presentation on how to use the Activity Stream remains one of my most popular presentations at conferences.

When this is said and done I think that the most important thing IBM could do for IBM Connections API wise would be to update the API's. In todays world a JSON based API is really expected and is the defacto way of accessing data. Do away with XML and namespaces and adopt a standards based JSON approach to messages being sent to the server and returned from the server. Of course the legacy Atom based API should be left in but it should really be augmented with a JSON ditto as soon as possible.

Besides the API's there is also a set of SPI's (Service Provider Interfaces) for stuff like hooking into the event subsystem, discovering features etc. The event SPI is pretty well designed and is very useful. However it seems that it was never really polished, completed and designed for customer / partner consumption as much of the functionality is reserved for IBM widgets and never documented or supported. Other pieces of the SPI's can only run within the same JVM as IBM Connections which really makes it unusable from a partner perspective.

The worst thing about the API or SPI is however what is not there...

There is no support for programmatic user registration or user deletion / deactivation. There is no support for feature discovery from outside the JVM. There is no support for getting a complete member lists for a community based on a (LDAP) directory groups. Using the community membership API will return a list of members some of which may be groups. If that's the case good luck. Your best / only option there would be to use WIM (WebSphere Identity Manager) to resolve the group and then manually combine that result with the direct community members. Of course if you are using IBM Domino as the LDAP server start by figuring out how IBM mangled the group UID before resolving it in WIM. That's really a can of worms of its own and maybe worth a blog post of its own. There is no support for a super-user that can access data on all users behalf. There is no support for easily reusing the IBM Connections header bar if using IBM Connections on-premises.

I don't want to finish this post being too pessimistic but there is really room for improvement from the API / integration standpoint. IBM needs to step up to the plate and update the platform and make it current from an API perspective. Oh and while you are at it document the API's, create up to date examples and actually make the documentation discoverable using Google...



Avatar: Frank van der Linden

Re: IBM Connections application development state of the union - part 1

 Well said. IBM has proved they can make modern API's, see the Watson services on BlueMix, there is the choice of XML or JSON output.


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