Add tests and tweak behavior of opentelemetry_req

instrumentation/opentelemetry_req/config/config.exs

@@ -0,0 +1,7 @@
+import Config
+
+try do
+  import_config "#{Mix.env()}.exs"
+rescue
+  _ -> :ok
+end

instrumentation/opentelemetry_req/config/test.exs

@@ -0,0 +1,5 @@
+import Config
+
+config :opentelemetry,
+  processors: [:simple],
+  traces_exporter: :none

instrumentation/opentelemetry_req/lib/opentelemetry_req.ex

@@ -53,7 +53,6 @@ defmodule OpentelemetryReq do
   alias OpenTelemetry.SemanticConventions.Trace
   require Trace
   require Tracer
-  require Logger
 
   def attach(%Req.Request{} = request, options \\ []) do
     request
@@ -105,7 +104,7 @@ defmodule OpentelemetryReq do
   end
 
   defp end_errored_span({request, exception}) do
-    OpenTelemetry.Tracer.set_status(OpenTelemetry.status(:error, format_exception(exception)))
+    OpenTelemetry.Tracer.set_status(OpenTelemetry.status(:error, format_error(exception)))
 
     OpenTelemetry.Tracer.end_span()
 
@@ -115,19 +114,16 @@ defmodule OpentelemetryReq do
     {request, exception}
   end
 
-  defp format_exception(%{__exception__: true} = exception) do
-    Exception.message(exception)
-  end
-
-  defp format_exception(_), do: ""
+  defp format_error(exception) when is_exception(exception), do: Exception.message(exception)
+  defp format_error(error), do: inspect(error)
 
   defp span_name(request) do
     case request.options[:span_name] do
       nil ->
         method = http_method(request.method)
 
         case Req.Request.get_private(request, :path_params_template) do
-          nil -> method
+          nil -> "#{method} #{request.url.path}"
           params_template -> "#{method} #{params_template}"
         end
 
@@ -202,30 +198,46 @@ defmodule OpentelemetryReq do
 
   defp maybe_put_trace_headers(request) do
     if request.options[:propagate_trace_ctx] do
-      Map.put(request, :headers, :otel_propagator_text_map.inject(request.headers))
+      Req.Request.put_headers(request, :otel_propagator_text_map.inject(request.headers))
     else
       request
     end
   end
 
   defp require_path_params_option(request) do
-    if !request.options[:no_path_params] and !request.options[:path_params] do
-      {Req.Request.halt(request), __MODULE__.PathParamsOptionError.new()}
-    else
-      request
+    cond do
+      request.options[:span_name] ->
+        request
+
+      request.options[:path_params] ->
+        request
+
+      request.options[:no_path_params] ->
+        request
+
+      true ->
+        {Req.Request.halt(request), __MODULE__.PathParamsOptionError.exception(_default = [])}
     end
   end
 
   defmodule PathParamsOptionError do
-    defexception [:message]
+    defexception message: ~S"""
+                 :path_params option must be set
 
-    def new do
-      %__MODULE__{}
-    end
+                 Span names cannot have unbounded names, so path_params should always be provided to
+                 ensure that paths have a proper template. For example:
 
-    @impl true
-    def message(_) do
-      ":path_params option must be set"
-    end
+                   /users/:id
+
+                 instead of:
+
+                   /users/42
+
+                 In you can ensure paths have no dynamic parts, for example:
+
+                   /users
+
+                 Then you can skip this check by via :no_path_params option. 
+                 """
   end
 end

instrumentation/opentelemetry_req/mix.exs

@@ -25,9 +25,7 @@ defmodule OpentelemetryReq.MixProject do
 
   # Run "mix help compile.app" to learn about applications.
   def application do
-    [
-      extra_applications: [:logger]
-    ]
+    []
   end
 
   defp description do
@@ -56,11 +54,12 @@ defmodule OpentelemetryReq.MixProject do
   # Run "mix help deps" to learn about dependencies.
   defp deps do
     [
-      {:jason, "~> 1.3"},
+      {:ex_doc, "~> 0.30", only: [:dev, :test]},
+      {:opentelemetry, "~> 1.0", only: [:dev, :test]},
       {:opentelemetry_api, "~> 1.0"},
-      {:opentelemetry_semantic_conventions, "~> 0.2"},
-      {:req, ">= 0.3.5"},
-      {:ex_doc, "~> 0.29", only: [:dev, :test]}
+      {:opentelemetry_exporter, "~> 1.0", only: [:dev, :test]},
+      {:opentelemetry_semantic_conventions, "~> 0.2.0"},
+      {:req, "~> 0.3.5"}
     ]
   end
 end

instrumentation/opentelemetry_req/mix.lock

@@ -1,20 +1,30 @@
 %{
-  "castore": {:hex, :castore, "0.1.22", "4127549e411bedd012ca3a308dede574f43819fe9394254ca55ab4895abfa1a2", [:mix], [], "hexpm", "c17576df47eb5aa1ee40cc4134316a99f5cad3e215d5c77b8dd3cfef12a22cac"},
-  "earmark_parser": {:hex, :earmark_parser, "1.4.31", "a93921cdc6b9b869f519213d5bc79d9e218ba768d7270d46fdcf1c01bacff9e2", [:mix], [], "hexpm", "317d367ee0335ef037a87e46c91a2269fef6306413f731e8ec11fc45a7efd059"},
-  "ex_doc": {:hex, :ex_doc, "0.29.2", "dfa97532ba66910b2a3016a4bbd796f41a86fc71dd5227e96f4c8581fdf0fdf0", [:mix], [{:earmark_parser, "~> 1.4.19", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "6b5d7139eda18a753e3250e27e4a929f8d2c880dd0d460cb9986305dea3e03af"},
-  "finch": {:hex, :finch, "0.14.0", "619bfdee18fc135190bf590356c4bf5d5f71f916adb12aec94caa3fa9267a4bc", [:mix], [{:castore, "~> 0.1", [hex: :castore, repo: "hexpm", optional: false]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.3", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2.6", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "5459acaf18c4fdb47a8c22fb3baff5d8173106217c8e56c5ba0b93e66501a8dd"},
+  "acceptor_pool": {:hex, :acceptor_pool, "1.0.0", "43c20d2acae35f0c2bcd64f9d2bde267e459f0f3fd23dab26485bf518c281b21", [:rebar3], [], "hexpm", "0cbcd83fdc8b9ad2eee2067ef8b91a14858a5883cb7cd800e6fcd5803e158788"},
+  "castore": {:hex, :castore, "1.0.3", "7130ba6d24c8424014194676d608cb989f62ef8039efd50ff4b3f33286d06db8", [:mix], [], "hexpm", "680ab01ef5d15b161ed6a95449fac5c6b8f60055677a8e79acf01b27baa4390b"},
+  "chatterbox": {:hex, :ts_chatterbox, "0.13.0", "6f059d97bcaa758b8ea6fffe2b3b81362bd06b639d3ea2bb088335511d691ebf", [:rebar3], [{:hpack, "~> 0.2.3", [hex: :hpack_erl, repo: "hexpm", optional: false]}], "hexpm", "b93d19104d86af0b3f2566c4cba2a57d2e06d103728246ba1ac6c3c0ff010aa7"},
+  "ctx": {:hex, :ctx, "0.6.0", "8ff88b70e6400c4df90142e7f130625b82086077a45364a78d208ed3ed53c7fe", [:rebar3], [], "hexpm", "a14ed2d1b67723dbebbe423b28d7615eb0bdcba6ff28f2d1f1b0a7e1d4aa5fc2"},
+  "earmark_parser": {:hex, :earmark_parser, "1.4.33", "3c3fd9673bb5dcc9edc28dd90f50c87ce506d1f71b70e3de69aa8154bc695d44", [:mix], [], "hexpm", "2d526833729b59b9fdb85785078697c72ac5e5066350663e5be6a1182da61b8f"},
+  "ex_doc": {:hex, :ex_doc, "0.30.5", "aa6da96a5c23389d7dc7c381eba862710e108cee9cfdc629b7ec021313900e9e", [:mix], [{:earmark_parser, "~> 1.4.31", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "88a1e115dcb91cefeef7e22df4a6ebbe4634fbf98b38adcbc25c9607d6d9d8e6"},
+  "finch": {:hex, :finch, "0.16.0", "40733f02c89f94a112518071c0a91fe86069560f5dbdb39f9150042f44dcfb1a", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.3", [hex: :mint, repo: "hexpm", optional: false]}, {:nimble_options, "~> 0.4 or ~> 1.0", [hex: :nimble_options, repo: "hexpm", optional: false]}, {:nimble_pool, "~> 0.2.6 or ~> 1.0", [hex: :nimble_pool, repo: "hexpm", optional: false]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: false]}], "hexpm", "f660174c4d519e5fec629016054d60edd822cdfe2b7270836739ac2f97735ec5"},
+  "gproc": {:hex, :gproc, "0.8.0", "cea02c578589c61e5341fce149ea36ccef236cc2ecac8691fba408e7ea77ec2f", [:rebar3], [], "hexpm", "580adafa56463b75263ef5a5df4c86af321f68694e7786cb057fd805d1e2a7de"},
+  "grpcbox": {:hex, :grpcbox, "0.16.0", "b83f37c62d6eeca347b77f9b1ec7e9f62231690cdfeb3a31be07cd4002ba9c82", [:rebar3], [{:acceptor_pool, "~> 1.0.0", [hex: :acceptor_pool, repo: "hexpm", optional: false]}, {:chatterbox, "~> 0.13.0", [hex: :ts_chatterbox, repo: "hexpm", optional: false]}, {:ctx, "~> 0.6.0", [hex: :ctx, repo: "hexpm", optional: false]}, {:gproc, "~> 0.8.0", [hex: :gproc, repo: "hexpm", optional: false]}], "hexpm", "294df743ae20a7e030889f00644001370a4f7ce0121f3bbdaf13cf3169c62913"},
+  "hpack": {:hex, :hpack_erl, "0.2.3", "17670f83ff984ae6cd74b1c456edde906d27ff013740ee4d9efaa4f1bf999633", [:rebar3], [], "hexpm", "06f580167c4b8b8a6429040df36cc93bba6d571faeaec1b28816523379cbb23a"},
   "hpax": {:hex, :hpax, "0.1.2", "09a75600d9d8bbd064cdd741f21fc06fc1f4cf3d0fcc335e5aa19be1a7235c84", [:mix], [], "hexpm", "2c87843d5a23f5f16748ebe77969880e29809580efdaccd615cd3bed628a8c13"},
-  "jason": {:hex, :jason, "1.4.0", "e855647bc964a44e2f67df589ccf49105ae039d4179db7f6271dfd3843dc27e6", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "79a3791085b2a0f743ca04cec0f7be26443738779d09302e01318f97bdb82121"},
+  "jason": {:hex, :jason, "1.4.1", "af1504e35f629ddcdd6addb3513c3853991f694921b1b9368b0bd32beb9f1b63", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fbb01ecdfd565b56261302f7e1fcc27c4fb8f32d56eab74db621fc154604a7a1"},
   "makeup": {:hex, :makeup, "1.1.0", "6b67c8bc2882a6b6a445859952a602afc1a41c2e08379ca057c0f525366fc3ca", [:mix], [{:nimble_parsec, "~> 1.2.2 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "0a45ed501f4a8897f580eabf99a2e5234ea3e75a4373c8a52824f6e873be57a6"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.16.0", "f8c570a0d33f8039513fbccaf7108c5d750f47d8defd44088371191b76492b0b", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "28b2cbdc13960a46ae9a8858c4bebdec3c9a6d7b4b9e7f4ed1502f8159f338e7"},
-  "makeup_erlang": {:hex, :makeup_erlang, "0.1.1", "3fcb7f09eb9d98dc4d208f49cc955a34218fc41ff6b84df7c75b3e6e533cc65f", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "174d0809e98a4ef0b3309256cbf97101c6ec01c4ab0b23e926a9e17df2077cbb"},
-  "mime": {:hex, :mime, "2.0.3", "3676436d3d1f7b81b5a2d2bd8405f412c677558c81b1c92be58c00562bb59095", [:mix], [], "hexpm", "27a30bf0db44d25eecba73755acf4068cbfe26a4372f9eb3e4ea3a45956bff6b"},
+  "makeup_elixir": {:hex, :makeup_elixir, "0.16.1", "cc9e3ca312f1cfeccc572b37a09980287e243648108384b97ff2b76e505c3555", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "e127a341ad1b209bd80f7bd1620a15693a9908ed780c3b763bccf7d200c767c6"},
+  "makeup_erlang": {:hex, :makeup_erlang, "0.1.2", "ad87296a092a46e03b7e9b0be7631ddcf64c790fa68a9ef5323b6cbb36affc72", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "f3f5a1ca93ce6e092d92b6d9c049bcda58a3b617a8d888f8e7231c85630e8108"},
+  "mime": {:hex, :mime, "2.0.5", "dc34c8efd439abe6ae0343edbb8556f4d63f178594894720607772a041b04b02", [:mix], [], "hexpm", "da0d64a365c45bc9935cc5c8a7fc5e49a0e0f9932a761c55d6c52b142780a05c"},
   "mint": {:hex, :mint, "1.5.1", "8db5239e56738552d85af398798c80648db0e90f343c8469f6c6d8898944fb6f", [:mix], [{:castore, "~> 0.1.0 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:hpax, "~> 0.1.1", [hex: :hpax, repo: "hexpm", optional: false]}], "hexpm", "4a63e1e76a7c3956abd2c72f370a0d0aecddc3976dea5c27eccbecfa5e7d5b1e"},
-  "nimble_options": {:hex, :nimble_options, "0.5.2", "42703307b924880f8c08d97719da7472673391905f528259915782bb346e0a1b", [:mix], [], "hexpm", "4da7f904b915fd71db549bcdc25f8d56f378ef7ae07dc1d372cbe72ba950dce0"},
-  "nimble_parsec": {:hex, :nimble_parsec, "1.2.3", "244836e6e3f1200c7f30cb56733fd808744eca61fd182f731eac4af635cc6d0b", [:mix], [], "hexpm", "c8d789e39b9131acf7b99291e93dae60ab48ef14a7ee9d58c6964f59efb570b0"},
-  "nimble_pool": {:hex, :nimble_pool, "0.2.6", "91f2f4c357da4c4a0a548286c84a3a28004f68f05609b4534526871a22053cde", [:mix], [], "hexpm", "1c715055095d3f2705c4e236c18b618420a35490da94149ff8b580a2144f653f"},
-  "opentelemetry_api": {:hex, :opentelemetry_api, "1.2.1", "7b69ed4f40025c005de0b74fce8c0549625d59cb4df12d15c32fe6dc5076ff42", [:mix, :rebar3], [{:opentelemetry_semantic_conventions, "~> 0.2", [hex: :opentelemetry_semantic_conventions, repo: "hexpm", optional: false]}], "hexpm", "6d7a27b7cad2ad69a09cabf6670514cafcec717c8441beb5c96322bac3d05350"},
+  "nimble_options": {:hex, :nimble_options, "1.0.2", "92098a74df0072ff37d0c12ace58574d26880e522c22801437151a159392270e", [:mix], [], "hexpm", "fd12a8db2021036ce12a309f26f564ec367373265b53e25403f0ee697380f1b8"},
+  "nimble_parsec": {:hex, :nimble_parsec, "1.3.1", "2c54013ecf170e249e9291ed0a62e5832f70a476c61da16f6aac6dca0189f2af", [:mix], [], "hexpm", "2682e3c0b2eb58d90c6375fc0cc30bc7be06f365bf72608804fb9cffa5e1b167"},
+  "nimble_pool": {:hex, :nimble_pool, "1.0.0", "5eb82705d138f4dd4423f69ceb19ac667b3b492ae570c9f5c900bb3d2f50a847", [:mix], [], "hexpm", "80be3b882d2d351882256087078e1b1952a28bf98d0a287be87e4a24a710b67a"},
+  "opentelemetry": {:hex, :opentelemetry, "1.3.1", "f0a342a74379e3540a634e7047967733da4bc8b873ec9026e224b2bd7369b1fc", [:rebar3], [{:opentelemetry_api, "~> 1.2.2", [hex: :opentelemetry_api, repo: "hexpm", optional: false]}, {:opentelemetry_semantic_conventions, "~> 0.2", [hex: :opentelemetry_semantic_conventions, repo: "hexpm", optional: false]}], "hexpm", "de476b2ac4faad3e3fe3d6e18b35dec9cb338c3b9910c2ce9317836dacad3483"},
+  "opentelemetry_api": {:hex, :opentelemetry_api, "1.2.2", "693f47b0d8c76da2095fe858204cfd6350c27fe85d00e4b763deecc9588cf27a", [:mix, :rebar3], [{:opentelemetry_semantic_conventions, "~> 0.2", [hex: :opentelemetry_semantic_conventions, repo: "hexpm", optional: false]}], "hexpm", "dc77b9a00f137a858e60a852f14007bb66eda1ffbeb6c05d5fe6c9e678b05e9d"},
+  "opentelemetry_exporter": {:hex, :opentelemetry_exporter, "1.6.0", "f4fbf69aa9f1541b253813221b82b48a9863bc1570d8ecc517bc510c0d1d3d8c", [:rebar3], [{:grpcbox, ">= 0.0.0", [hex: :grpcbox, repo: "hexpm", optional: false]}, {:opentelemetry, "~> 1.3", [hex: :opentelemetry, repo: "hexpm", optional: false]}, {:opentelemetry_api, "~> 1.2", [hex: :opentelemetry_api, repo: "hexpm", optional: false]}, {:tls_certificate_check, "~> 1.18", [hex: :tls_certificate_check, repo: "hexpm", optional: false]}], "hexpm", "1802d1dca297e46f21e5832ecf843c451121e875f73f04db87355a6cb2ba1710"},
   "opentelemetry_semantic_conventions": {:hex, :opentelemetry_semantic_conventions, "0.2.0", "b67fe459c2938fcab341cb0951c44860c62347c005ace1b50f8402576f241435", [:mix, :rebar3], [], "hexpm", "d61fa1f5639ee8668d74b527e6806e0503efc55a42db7b5f39939d84c07d6895"},
-  "req": {:hex, :req, "0.3.6", "541350d2cc359a8ad17059f2629c18be56d0c85ce0e4ddb27694b6ba482fe923", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.9", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 1.6 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "9181047f32b05f8737f6b5917af5ee5385219158bbe4e507f4ec57791a0a78c3"},
+  "req": {:hex, :req, "0.3.11", "462315e50db6c6e1f61c45e8c0b267b0d22b6bd1f28444c136908dfdca8d515a", [:mix], [{:brotli, "~> 0.3.1", [hex: :brotli, repo: "hexpm", optional: true]}, {:ezstd, "~> 1.0", [hex: :ezstd, repo: "hexpm", optional: true]}, {:finch, "~> 0.9", [hex: :finch, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:mime, "~> 1.6 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:nimble_csv, "~> 1.0", [hex: :nimble_csv, repo: "hexpm", optional: true]}, {:plug, "~> 1.0", [hex: :plug, repo: "hexpm", optional: true]}], "hexpm", "0e4b331627fedcf90b29aa8064cd5a95619ef6134d5ab13919b6e1c4d7cccd4b"},
+  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.7", "354c321cf377240c7b8716899e182ce4890c5938111a1296add3ec74cf1715df", [:make, :mix, :rebar3], [], "hexpm", "fe4c190e8f37401d30167c8c405eda19469f34577987c76dde613e838bbc67f8"},
   "telemetry": {:hex, :telemetry, "1.2.1", "68fdfe8d8f05a8428483a97d7aab2f268aaff24b49e0f599faa091f1d4e7f61c", [:rebar3], [], "hexpm", "dad9ce9d8effc621708f99eac538ef1cbe05d6a874dd741de2e689c47feafed5"},
+  "tls_certificate_check": {:hex, :tls_certificate_check, "1.19.0", "c76c4c5d79ee79a2b11c84f910c825d6f024a78427c854f515748e9bd025e987", [:rebar3], [{:ssl_verify_fun, "~> 1.1", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm", "4083b4a298add534c96125337cb01161c358bb32dd870d5a893aae685fd91d70"},
 }