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Contents
module Datadog
module Ext
module DistributedTracing
# HTTP headers one should set for distributed tracing.
# These are cross-language (eg: Python, Go and other implementations should honor these)
HTTP_HEADER_TRACE_ID = 'x-datadog-trace-id'.freeze
HTTP_HEADER_PARENT_ID = 'x-datadog-parent-id'.freeze
HTTP_HEADER_SAMPLING_PRIORITY = 'x-datadog-sampling-priority'.freeze
SAMPLING_PRIORITY_KEY = '_sampling_priority_v1'.freeze
HTTP_HEADER_ORIGIN = 'x-datadog-origin'.freeze
ORIGIN_KEY = '_dd.origin'.freeze
# B3 headers used for distributed tracing
B3_HEADER_TRACE_ID = 'x-b3-traceid'.freeze
B3_HEADER_SPAN_ID = 'x-b3-spanid'.freeze
B3_HEADER_SAMPLED = 'x-b3-sampled'.freeze
B3_HEADER_SINGLE = 'b3'.freeze
# Distributed tracing propagation options
PROPAGATION_STYLE_DATADOG = 'Datadog'.freeze
PROPAGATION_STYLE_B3 = 'B3'.freeze
PROPAGATION_STYLE_B3_SINGLE_HEADER = 'B3 single header'.freeze
PROPAGATION_STYLE_INJECT_ENV = 'DD_PROPAGATION_STYLE_INJECT'.freeze
PROPAGATION_STYLE_EXTRACT_ENV = 'DD_PROPAGATION_STYLE_EXTRACT'.freeze
# NOTE: the below inject/extract values are deprecated and were defined erronously
# they were never part of the datadog language client standard or documentation
# some users may already be relying on them, but we should look to remove these in the future
# or before 1.0.
PROPAGATION_INJECT_STYLE_ENV_OLD = 'DD_PROPAGATION_INJECT_STYLE'.freeze
PROPAGATION_EXTRACT_STYLE_ENV_OLD = 'DD_PROPAGATION_EXTRACT_STYLE'.freeze
# gRPC metadata keys for distributed tracing. https://github.com/grpc/grpc-go/blob/v1.10.x/Documentation/grpc-metadata.md
GRPC_METADATA_TRACE_ID = 'x-datadog-trace-id'.freeze
GRPC_METADATA_PARENT_ID = 'x-datadog-parent-id'.freeze
GRPC_METADATA_SAMPLING_PRIORITY = 'x-datadog-sampling-priority'.freeze
GRPC_METADATA_ORIGIN = 'x-datadog-origin'.freeze
end
end
end
Version data entries
7 entries across 7 versions & 1 rubygems