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# frozen_string_literal: true
module Gitlab
module Graphql
module Tracers
# This tracer writes logs for certain trace events.
# It reads duration metadata written by TimerTracer.
class LoggerTracer
def self.use(schema)
schema.tracer(self.new)
end
def trace(key, data)
result = yield
case key
when "execute_query"
log_execute_query(**data)
end
result
end
private
def log_execute_query(query: nil, duration_s: 0)
# execute_query should always have :query, but we're just being defensive
return unless query
analysis_info = query.context[:gl_analysis]&.transform_keys { |key| "query_analysis.#{key}" }
info = {
trace_type: 'execute_query',
query_fingerprint: query.fingerprint,
duration_s: duration_s,
operation_name: query.operation_name,
operation_fingerprint: query.operation_fingerprint,
is_mutation: query.mutation?,
variables: clean_variables(query.provided_variables),
query_string: query.query_string
}
info.merge!(::Gitlab::ApplicationContext.current)
info.merge!(analysis_info) if analysis_info
::Gitlab::GraphqlLogger.info(info)
end
def clean_variables(variables)
filtered = ActiveSupport::ParameterFilter
.new(::Rails.application.config.filter_parameters)
.filter(variables)
filtered&.to_s
end
end
end
end
end
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