module GraphQL::Backtrace::LegacyTracer
Public Instance Methods
trace(key, metadata) { || ... }
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Implement the {GraphQL::Tracing} API.
# File lib/graphql/backtrace/legacy_tracer.rb, line 8 def trace(key, metadata) case key when "lex", "parse" # No context here, don't have a query yet nil when "execute_multiplex", "analyze_multiplex" # No query context yet nil when "validate", "analyze_query", "execute_query", "execute_query_lazy" query = metadata[:query] || metadata[:queries].first push_data = query multiplex = query.multiplex when "execute_field", "execute_field_lazy" # The interpreter passes `query:`, legacy passes `context:` context = metadata[:context] || ((q = metadata[:query]) && q.context) push_data = context multiplex = context.query.multiplex else # Custom key, no backtrace data for this nil end if push_data multiplex.context[:last_graphql_backtrace_context] = push_data end if key == "execute_multiplex" begin yield rescue StandardError => err # This is an unhandled error from execution, # Re-raise it with a GraphQL trace. potential_context = metadata[:multiplex].context[:last_graphql_backtrace_context] if potential_context.is_a?(GraphQL::Query::Context) || potential_context.is_a?(GraphQL::Query::Context::FieldResolutionContext) raise TracedError.new(err, potential_context) else raise end ensure metadata[:multiplex].context.delete(:last_graphql_backtrace_context) end else yield end end