RequestTraceId

A small plug similar to Plug.RequestId except that it appends ids allowing for simple request tracing. Because of this distinction the header used is instead X-Request-Trace-Id and the following terminology is adopted (adapted from Zipkin):

span-id

• A randomized id generated for each client/server request/response.

request-trace-id

• A semicolon delimited string of all span-ids generated during the lifecycle of a single upstream request.

Installation

If available in Hex, the package can be installed by adding request_trace_id to your list of dependencies in mix.exs:

def deps do
  [
    {:request_trace_id, "~> 0.1.0"}
  ]
end

Usage

To use it, just plug it into the desired module:

plug RequestTraceId

Docs

See: https://hexdocs.pm/request_trace_id/RequestTraceId.html