debian-mirror-gitlab/lib/gitlab/graphql/tracers/application_context_tracer.rb

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2021-12-11 22:18:48 +05:30
# frozen_string_literal: true
module Gitlab
module Graphql
module Tracers
# This graphql-ruby tracer sets up `ApplicationContext` for certain operations.
class ApplicationContextTracer
def self.use(schema)
schema.tracer(self.new)
end
# See docs on expected interface for trace
# https://graphql-ruby.org/api-doc/1.12.17/GraphQL/Tracing
def trace(key, data)
case key
when "execute_query"
operation = known_operation(data)
::Gitlab::ApplicationContext.with_context(caller_id: operation.to_caller_id) do
yield
end
else
yield
end
end
private
def known_operation(data)
# The library guarantees that we should have :query for execute_query, but we're being defensive here
query = data.fetch(:query, nil)
return ::Gitlab::Graphql::KnownOperations.UNKNOWN unless query
::Gitlab::Graphql::KnownOperations.default.from_query(query)
end
end
end
end
end