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kingsleyh/g.cr

Created January 2, 2018 16:53
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generics
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g.cr
def onParams(context, klass : T, &block) forall T
result = klass.parse(contextToJson(context))
p typeof(result)
if result.is_a?(T)
yield result
else
HTTPCodes.notFound(context, {message: result})
end
end
onParams(context, AddGroup) do |addGroup|
# do stuff
end
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