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Versions: 13
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Stored size: 1.19 KB
Contents
require 'rest-core/middleware'
require 'rest-core/util/json'
class RestCore::JsonResponse
def self.members; [:json_response]; end
include RestCore::Middleware
class ParseError < Json.const_get(:ParseError)
attr_reader :cause, :body
def initialize cause, body
msg = cause.message.force_encoding('utf-8')
super("#{msg}\nOriginal text: #{body}")
@cause, @body = cause, body
end
end
JSON_RESPONSE_HEADER = {'Accept' => 'application/json'}.freeze
def call env, &k
return app.call(env, &k) if env[DRY]
return app.call(env, &k) unless json_response(env)
app.call(env.merge(REQUEST_HEADERS =>
JSON_RESPONSE_HEADER.merge(env[REQUEST_HEADERS]||{}))){ |response|
yield(process(response))
}
end
def process response
# StackExchange returns the problematic BOM! in UTF-8, so we need to
# strip it or it would break JSON parsers (i.e. yajl-ruby and json)
body = response[RESPONSE_BODY].to_s.sub(/\A\xEF\xBB\xBF/, '')
response.merge(RESPONSE_BODY => Json.decode("[#{body}]").first)
# [this].first is not needed for yajl-ruby
rescue Json.const_get(:ParseError) => error
fail(response, ParseError.new(error, body))
end
end
Version data entries
13 entries across 13 versions & 1 rubygems