A DataMapper adapter for REST Web Services
DM Rest Adapter requires the use of a model which is the same name as the resource you are using. For example, if you have a resource named “posts” you will create a standard datamapper object called post.rb in app/models. The only difference in this model is you will need to define the rest adapter for the model. The following is an example of a post model, where the host settings point to the app you are running the resource on. In addition I have included a basic auth login which will be used if your resource requires auth:
:adapter => 'rest', :format => 'xml', :host => 'localhost', :port => 4000, :login => 'user', :password => 'verys3crit'
include DataMapper::Resource property :id, Serial property :title, String property :body, Text
If you notice this looks exactly like a normal datmapper model. Every property you define will map itself with the xml returned or posted from/to the resource.
Now for some code examples. DM Rest Adapter uses the same methods as datamapper including during creation.
Post.first => returns the object from the resouce Post.get(1) => returns the object from the resource p = Post.new(:title => “My awesome blog post”, :body => “I really have nothing to say…”) p.save => saves the resource on the remote
Posts do not honor RESTful HTTP status codes. I might fix this…
Nested resources Put verb actions