app.rb in voom-presenters-2.0.0

- old
+ new

@@ -1,9 +1,8 @@
 require 'sinatra'
+require 'honeybadger' if ENV.fetch('HONEYBADGER_API_KEY'){false}
 require 'json'
-require 'voom/presenters'
-require 'voom/presenters/api/router'
 
 module Voom
   module Presenters
     module Api
       # This is the Rest API for voom services/component commands
@@ -29,27 +28,48 @@
         end
 
 
         private
 
+        # analogous to Voom::Presenters::WebClient::App#render_presenter
         def render_presenter(presenter)
-          # puts "/presenters/api/#{params[:version]}/#{params[:presenter]}/"
-          # puts "Parameters: #{params.inspect}"
-          presenter = Voom::Presenters::App[presenter].call
-          pom = presenter.expand(router: router, context: prepare_context)
-          content_type :json
-          JSON.dump(pom.to_hash)
+          begin
+            before_render = Presenters::Settings.config.presenters.before_render
+            render_instead, ctx = before_render
+                                    .lazy
+                                    .map { |p| p.call(request) }
+                                    .detect(&:itself)
+
+            if Presenters::App.registered?(render_instead)
+              presenter = render_instead
+            end
+
+            p = params.merge(ctx || {})
+            presenter = Voom::Presenters::App[presenter].call
+            pom = presenter.expand(router: router, context: prepare_context(p))
+            content_type :json
+            JSON.dump(pom.to_hash)
+          rescue StandardError => e
+            presenter_name = presenter.respond_to?(:name) ? presenter.name : '(unknown)'
+            Presenters::Settings.config.presenters.error_logger.call(
+              @env['rack.errors'],
+              e,
+              params,
+              presenter_name
+            )
+            raise e
+          end
         end
 
         def router
           settings.router_.new(base_url: "#{request.base_url}#{env['SCRIPT_NAME']}")
         end
 
-        def prepare_context
+        def prepare_context(base_params = params)
           prepare_context = Presenters::Settings.config.presenters.web_client.prepare_context.dup
           prepare_context.push(method(:scrub_context))
-          context = params.dup
+          context = base_params.dup
           prepare_context.reduce(context) do |params, context_proc|
             context_proc.call(params, session, env)
           end
           context
         end
@@ -61,6 +81,6 @@
           params
         end
       end
     end
   end
-end
\ No newline at end of file
+end