Rails External Service Exception Handling -


i connecting application third party api pull , push data. 1 thing i'd implement exception handling users receive related error message if happens api.

i have show action has main call third party service inside. i've wrapped service in begin rescue block. i'm receiving following error:

render and/or redirect called multiple times in action.

my show action looks this

def show   begin     client = foobarrest::client.new     [api request code here]   rescue => e     rails.logger.error { "#{e.message} #{e.backtrace.join("\n")}" }     redirect_to signing_error_path   end   render_wizard end

i understand have 2 renders/redirects (the render_wizard there satisfy wizard's requirements) happening in block- i'm unsure how redirect signing_error_path other way.

i have errors controller , views built handle 404s, 500s etc:class 

errorscontroller < applicationcontroller    def not_found   end     def unavailable   end     def internal_error   end    def unauthorized_access   end    def signing_error   end  end

the corresponding views in views/errors folder. how can display signing_error view if exception raised current show method?

you can use code as-is if add and return on redirect_to line

from api docs

if need redirect on condition of something, sure add “and return” halt execution.

alternatively, place render_wizard call inside begin block, right before rescue => e line


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