I am new to clojure.

My question how to handle version if we expose data directly as api, any 
schema change will break the api which may impact third party users.

On Friday, 17 October 2014 15:23:10 UTC+11, Armando Blancas wrote:
>
> Sure, that's the theory behind encapsulation, but I'm not convinced there 
>> are many cases in practice where the API can remain consistent while the 
>> data changes.
>>  
>>
>  
> I'm not, either. Models that have little or no abstraction --basically 
> aggregates of related items-- end up having APIs that just reflect their 
> contents. For years, my tools were the Eclipse refactoring features and the 
> code (re)generation of the Eclipse Modeling Framework, not encapsulation. I 
> started using Clojure practices, though not totally convinced until a while 
> ago Stuart Sierra wrote: "The data *is* the API," which helped me 
> understand what I was really doing. Whereas I never faced the proverbial 
> computed-field change, I've now taken good advantage of generic functions 
> over maps and records. 
>

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