instance method `uuid`

Ruby on Rails 4.0.13

Since v3.2.22.5

Available in: v3.2.22.5 v4.0.13 v4.1.16 v4.2.9 v5.2.8.1 v6.0.6 v6.1.7.10 v7.0.10 v7.1.6 v7.2.3 v8.0.4 v8.1.2

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uuid()

Returns the unique request id, which is based off either the X-Request-Id header that can be generated by a firewall, load balancer, or web server or by the RequestId middleware (which sets the action_dispatch.request_id environment variable).

This unique ID is useful for tracing a request from end-to-end as part of logging or debugging. This relies on the rack variable set by the ActionDispatch::RequestId middleware.

Source

# File actionpack/lib/action_dispatch/http/request.rb, line 214
    def uuid
      @uuid ||= env["action_dispatch.request_id"]
    end

Defined in actionpack/lib/action_dispatch/http/request.rb line 214 · View on GitHub · Improve this page · Find usages on GitHub

Defined in ActionDispatch::Request

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