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Versions: 4
Compression:
Stored size: 1.82 KB
Contents
require 'json'
module Quandl
module Client
module Middleware
class ParseJSON < Faraday::Response::Middleware
def on_complete(env)
env[:body] = case env[:status]
when 204
parse('{}', env)
else
parse(env[:body], env)
end
end
def parse(body, env)
json = parse_json(body, env)
json.has_key?(:docs) ? format_collection( json, env ) : format_record( json, env )
end
def format_record(json, env)
errors = json.delete(:errors) || {}
metadata = json.delete(:metadata) || {}
# collect some response data
metadata.merge!({
status: env[:status],
headers: env[:response_headers],
})
# return object
object = {
:data => json,
:errors => errors,
:metadata => metadata
}
env[:status] = 200
object
end
def format_collection(json, env)
errors = json.delete(:errors) || {}
metadata = json.delete(:metadata) || {}
docs = json.delete(:docs)
# collect some response data
metadata.merge!(json).merge!({
status: env[:status],
headers: env[:response_headers],
})
# each doc metadata references metadata
docs.each{|d| d[:metadata] = metadata }
# return object
object = {
:data => docs,
:errors => errors,
:metadata => metadata
}
env[:status] = 200
object
end
def parse_json(body = nil, env)
body ||= '{}'
json = begin
JSON.parse(body).symbolize_keys!
rescue JSON::ParserError
nil
end
# invalid json body?
if json.blank?
# fallback to error message
json = {
id: 1,
errors: {
parse_error: "Quandl::Client::ParseJSON error. status: #{env[:status]}, body: #{body.inspect}"
}
}
end
json
end
end
end
end
end
Version data entries
4 entries across 4 versions & 1 rubygems