chore: update Elixir, Erlang and dependencies

.formatter.exs

@@ -1,6 +1,9 @@
-
 [
-  inputs: ["mix.exs", "{config,lib,test}/**/*.{ex,exs}", "examples/*/{config,lib,priv}/*.ex"],
+  inputs: [
+    "{mix,.formatter}.exs",
+    "{config,lib,test}/**/*.{ex,exs}",
+    "examples/*/{config,lib,priv}/*.ex"
+  ],
   import_deps: [:protobuf],
   locals_without_parens: [rpc: 3, intercept: 1, intercept: 2, run: 1, run: 2],
   export: [

.github/workflows/ci.yml

@@ -12,10 +12,12 @@ jobs:
   check_format:
     runs-on: ubuntu-latest
     name: Check format
-    container:
-      image: elixir:1.9-slim
     steps:
       - uses: actions/checkout@v1
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: 24
+          elixir-version: 1.13.1
       - name: Install Dependencies
         run: |
           mix local.rebar --force
@@ -29,11 +31,15 @@ jobs:
     name: OTP ${{matrix.otp}} / Elixir ${{matrix.elixir}}
     strategy:
       matrix:
-        otp: [20.x, 21.x, 22.x]
-        elixir: [1.7.x, 1.8.x, 1.9.x, 1.10.x]
+        otp: [22.x, 23.x, 24.x, 25.x]
+        elixir: [1.10.x, 1.11.x, 1.12.x, 1.13.x]
         exclude:
-          - otp: 20.x
+          - otp: 25.x
             elixir: 1.10.x
+          - otp: 25.x
+            elixir: 1.11.x
+          - otp: 25.x
+            elixir: 1.12.x
     needs: check_format
     steps:
     - uses: actions/checkout@v2
@@ -52,11 +58,13 @@ jobs:
   interop-tests:
     runs-on: ubuntu-latest
     name: Interop tests
-    container:
-      image: elixir:1.9-slim
     needs: check_format
     steps:
     - uses: actions/checkout@v2
+    - uses: erlef/setup-beam@v1
+      with:
+        otp-version: 24
+        elixir-version: 1.13.1
     - name: Install Dependencies
       run: |
         mix local.rebar --force
@@ -71,10 +79,12 @@ jobs:
     runs-on: ubuntu-latest
     name: Check release
     needs: check_format
-    container:
-      image: elixir:1.9-slim
     steps:
       - uses: actions/checkout@v2
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: 24
+          elixir-version: 1.13.1
       - name: Install Dependencies
         run: |
           mix local.rebar --force

README.md

@@ -9,7 +9,7 @@ An Elixir implementation of [gRPC](http://www.grpc.io/).
 
 **WARNING: Be careful to use it in production! Test and benchmark in advance.**
 
-**NOTICE: Erlang/OTP needs >= 20.3.2**
+**NOTICE: Erlang/OTP needs >= 22 **
 
 **NOTICE: grpc_gun**
 

config/config.exs

@@ -1,3 +1,3 @@
-use Mix.Config
+import Config
 
 config :grpc, http2_client_adapter: GRPC.Adapter.Gun

examples/route_guide/lib/client.ex

@@ -89,9 +89,7 @@ defmodule RouteGuide.Client do
 
     Enum.each(result_enum, fn {:ok, note} ->
       IO.puts(
-        "Got message #{note.message} at point(#{note.location.latitude}, #{
-          note.location.longitude
-        })"
+        "Got message #{note.message} at point(#{note.location.latitude}, #{note.location.longitude})"
       )
     end)
   end

interop/config/config.exs

@@ -1,4 +1,4 @@
-use Mix.Config
+import Config
 
 config :prometheus, GRPCPrometheus.ServerInterceptor,
   latency: :histogram

interop/lib/interop/app.ex

@@ -10,7 +10,6 @@ defmodule Interop.App do
 
     GRPCPrometheus.ServerInterceptor.setup()
     GRPCPrometheus.ClientInterceptor.setup()
-    :prometheus_httpd.start()
     Interop.ServerInterceptor.Statix.connect()
 
     opts = [strategy: :one_for_one, name: __MODULE__]

interop/mix.exs

@@ -23,13 +23,11 @@ defmodule Interop.MixProject do
   defp deps do
     [
       {:grpc, path: "..", override: true},
-      {:cowlib, "~> 2.9.0", override: true},
       {:grpc_prometheus, ">= 0.1.0"},
       {:grpc_statsd, "~> 0.1.0"},
       {:statix, ">= 1.2.1"},
       {:extrace, "~> 0.2"},
-      {:prometheus, "~> 4.0", override: true},
-      {:prometheus_httpd, "~> 2.0"}
+      {:prometheus, "~> 4.0", override: true}
     ]
   end
 end

interop/mix.lock

@@ -1,17 +1,17 @@
 %{
   "accept": {:hex, :accept, "0.3.5", "b33b127abca7cc948bbe6caa4c263369abf1347cfa9d8e699c6d214660f10cd1", [:rebar3], [], "hexpm", "11b18c220bcc2eab63b5470c038ef10eb6783bcb1fcdb11aa4137defa5ac1bb8"},
-  "cowboy": {:hex, :cowboy, "2.7.0", "91ed100138a764355f43316b1d23d7ff6bdb0de4ea618cb5d8677c93a7a2f115", [:rebar3], [{:cowlib, "~> 2.8.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.7.1", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "04fd8c6a39edc6aaa9c26123009200fc61f92a3a94f3178c527b70b767c6e605"},
-  "cowlib": {:hex, :cowlib, "2.9.0", "8365736a2ada74d5e8640c9b03efff15aceffcf2c7cba2e5ffd0c549f54bf0da", [:rebar3], [], "hexpm", "e8a93bbdf5c4f3d63fbb0cae422de2b58227955bebad5fed978f7a83b0ca4c89"},
+  "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
+  "cowlib": {:hex, :cowlib, "2.11.0", "0b9ff9c346629256c42ebe1eeb769a83c6cb771a6ee5960bd110ab0b9b872063", [:make, :rebar3], [], "hexpm", "2b3e9da0b21c4565751a6d4901c20d1b4cc25cbb7fd50d91d2ab6dd287bc86a9"},
   "extrace": {:hex, :extrace, "0.2.1", "e234f1f64df8c989771b7b5d047a3412f10512c0e3d414fc7eb0e8fc633779f8", [:mix], [{:recon, "~> 2.5", [hex: :recon, repo: "hexpm", optional: false]}], "hexpm", "1b2d9fc4bacc208d5aaa97f61e7c47b66ff4dfc155e9b95647e68ca316ab3981"},
   "grpc": {:git, "https://github.com/elixir-grpc/grpc.git", "21422839798e49bf6d29327fab0a7add51becedd", []},
   "grpc_prometheus": {:hex, :grpc_prometheus, "0.1.0", "a2f45ca83018c4ae59e4c293b7455634ac09e38c36cba7cc1fb8affdf462a6d5", [:mix], [{:grpc, ">= 0.0.0", [hex: :grpc, repo: "hexpm", optional: true]}, {:prometheus, "~> 4.0", [hex: :prometheus, repo: "hexpm", optional: false]}, {:prometheus_ex, "~> 3.0", [hex: :prometheus_ex, repo: "hexpm", optional: false]}], "hexpm", "8b9ab3098657e7daec0b3edc78e1d02418bc0871618d8ca89b51b74a8086bb71"},
   "grpc_statsd": {:hex, :grpc_statsd, "0.1.0", "a95ae388188486043f92a3c5091c143f5a646d6af80c9da5ee616546c4d8f5ff", [:mix], [{:grpc, ">= 0.0.0", [hex: :grpc, repo: "hexpm", optional: true]}, {:statix, ">= 0.0.0", [hex: :statix, repo: "hexpm", optional: true]}], "hexpm", "de0c05db313c7b3ffeff345855d173fd82fec3de16591a126b673f7f698d9e74"},
-  "gun": {:hex, :grpc_gun, "2.0.0", "f99678a2ab975e74372a756c86ec30a8384d3ac8a8b86c7ed6243ef4e61d2729", [:rebar3], [{:cowlib, "~> 2.8.0", [hex: :cowlib, repo: "hexpm", optional: false]}], "hexpm", "03dbbca1a9c604a0267a40ea1d69986225091acb822de0b2dbea21d5815e410b"},
+  "gun": {:hex, :gun, "2.0.0-rc.2", "7c489a32dedccb77b6e82d1f3c5a7dadfbfa004ec14e322cdb5e579c438632d2", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}], "hexpm", "6b9d1eae146410d727140dbf8b404b9631302ecc2066d1d12f22097ad7d254fc"},
   "prometheus": {:hex, :prometheus, "4.2.2", "a830e77b79dc6d28183f4db050a7cac926a6c58f1872f9ef94a35cd989aceef8", [:mix, :rebar3], [], "hexpm", "b479a33d4aa4ba7909186e29bb6c1240254e0047a8e2a9f88463f50c0089370e"},
   "prometheus_ex": {:hex, :prometheus_ex, "3.0.5", "fa58cfd983487fc5ead331e9a3e0aa622c67232b3ec71710ced122c4c453a02f", [:mix], [{:prometheus, "~> 4.0", [hex: :prometheus, repo: "hexpm", optional: false]}], "hexpm", "9fd13404a48437e044b288b41f76e64acd9735fb8b0e3809f494811dfa66d0fb"},
   "prometheus_httpd": {:hex, :prometheus_httpd, "2.1.11", "f616ed9b85b536b195d94104063025a91f904a4cfc20255363f49a197d96c896", [:rebar3], [{:accept, "~> 0.3", [hex: :accept, repo: "hexpm", optional: false]}, {:prometheus, "~> 4.2", [hex: :prometheus, repo: "hexpm", optional: false]}], "hexpm", "0bbe831452cfdf9588538eb2f570b26f30c348adae5e95a7d87f35a5910bcf92"},
-  "protobuf": {:hex, :protobuf, "0.7.1", "7d1b9f7d9ecb32eccd96b0c58572de4d1c09e9e3bc414e4cb15c2dce7013f195", [:mix], [], "hexpm", "6eff7a5287963719521c82e5d5b4583fd1d7cdd89ad129f0ea7d503a50a4d13f"},
-  "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm", "451d8527787df716d99dc36162fca05934915db0b6141bbdac2ea8d3c7afc7d7"},
+  "protobuf": {:hex, :protobuf, "0.9.0", "9c1633ecc098f3d7ec0a00503e070541b0e1868114fff41523934888442319e7", [:mix], [{:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "15fb7cddc5f85b8055fedaf81a9093020e4cd283647a21deb8f7de8d243abb9d"},
+  "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
   "recon": {:hex, :recon, "2.5.0", "2f7fcbec2c35034bade2f9717f77059dc54eb4e929a3049ca7ba6775c0bd66cd", [:mix, :rebar3], [], "hexpm", "72f3840fedd94f06315c523f6cecf5b4827233bed7ae3fe135b2a0ebeab5e196"},
   "statix": {:hex, :statix, "1.2.1", "4f23c8cc2477ea0de89fed5e34f08c54b0d28b838f7b8f26613155f2221bb31e", [:mix], [], "hexpm", "7f988988fddcce19ae376bb8e47aa5ea5dabf8d4ba78d34d1ae61eb537daf72e"},
 }

interop/script/run.exs

@@ -1,6 +1,7 @@
 {options, _, _} = OptionParser.parse(System.argv(), strict: [rounds: :integer, concurrency: :integer, port: :integer])
 rounds = Keyword.get(options, :rounds, 100)
-concurrency = Keyword.get(options, :concurrency, 10)
+max_concurrency = System.schedulers_online() |> div(2) |> min(1)
+concurrency = Keyword.get(options, :concurrency, max_concurrency)
 port = Keyword.get(options, :port, 0)
 
 IO.puts "Rounds: #{rounds}; concurrency: #{concurrency}; port: #{port}"

lib/grpc/adapter/cowboy/handler.ex

@@ -249,9 +249,7 @@ defmodule GRPC.Adapter.Cowboy.Handler do
 
     if compressor && !Enum.member?(accepted_encodings, compressor.name()) do
       msg =
-        "A unaccepted encoding #{compressor.name()} is set, valid are: #{
-          :cowboy_req.header("grpc-accept-encoding", req)
-        }"
+        "A unaccepted encoding #{compressor.name()} is set, valid are: #{:cowboy_req.header("grpc-accept-encoding", req)}"
 
       req = send_error(req, state, msg)
       {:stop, req, state}

lib/grpc/codec/proto.ex

@@ -5,11 +5,11 @@ defmodule GRPC.Codec.Proto do
     "proto"
   end
 
-  def encode(struct) do
-    Protobuf.Encoder.encode(struct)
+  def encode(%mod{} = struct) do
+    mod.encode(struct)
   end
 
   def decode(binary, module) do
-    Protobuf.Decoder.decode(binary, module)
+    module.decode(binary)
   end
 end

mix.exs

@@ -7,7 +7,7 @@ defmodule GRPC.Mixfile do
     [
       app: :grpc,
       version: @version,
-      elixir: "~> 1.5",
+      elixir: "~> 1.10",
       elixirc_paths: elixirc_paths(Mix.env()),
       build_embedded: Mix.env() == :prod,
       start_permanent: Mix.env() == :prod,
@@ -36,14 +36,14 @@ defmodule GRPC.Mixfile do
 
   defp deps do
     [
-      {:protobuf, "~> 0.5"},
-      {:cowboy, "~> 2.7"},
-      {:gun, "~> 2.0.0", hex: :grpc_gun},
-      # 2.9.0 fixes some important bugs, so it's better to use ~> 2.9.0
-      # {:cowlib, "~> 2.9.0", override: true},
-      {:ex_doc, "~> 0.23", only: :dev},
+      # TO-DO: update protobuf to 0.10 (has breaking changes)
+      {:protobuf, "~> 0.9.0"},
+      {:cowboy, "~> 2.9"},
+      {:gun, "~> 2.0.0-rc.2"},
+      {:cowlib, "~> 2.11"},
+      {:ex_doc, "~> 0.28", only: :dev},
       {:inch_ex, "~> 2.0", only: [:dev, :test]},
-      {:dialyxir, "~> 1.0", only: [:dev, :test], runtime: false}
+      {:dialyxir, "~> 1.1", only: [:dev, :test], runtime: false}
     ]
   end
 

mix.lock

@@ -1,19 +1,18 @@
 %{
   "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"},
-  "cowboy": {:hex, :cowboy, "2.7.0", "91ed100138a764355f43316b1d23d7ff6bdb0de4ea618cb5d8677c93a7a2f115", [:rebar3], [{:cowlib, "~> 2.8.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.7.1", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "04fd8c6a39edc6aaa9c26123009200fc61f92a3a94f3178c527b70b767c6e605"},
-  "cowlib": {:hex, :cowlib, "2.8.0", "fd0ff1787db84ac415b8211573e9a30a3ebe71b5cbff7f720089972b2319c8a4", [:rebar3], [], "hexpm", "79f954a7021b302186a950a32869dbc185523d99d3e44ce430cd1f3289f41ed4"},
-  "dialyxir": {:hex, :dialyxir, "1.0.0", "6a1fa629f7881a9f5aaf3a78f094b2a51a0357c843871b8bc98824e7342d00a5", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "aeb06588145fac14ca08d8061a142d52753dbc2cf7f0d00fc1013f53f8654654"},
-  "earmark": {:hex, :earmark, "1.4.3", "364ca2e9710f6bff494117dbbd53880d84bebb692dafc3a78eb50aa3183f2bfd", [:mix], [], "hexpm", "8cf8a291ebf1c7b9539e3cddb19e9cef066c2441b1640f13c34c1d3cfc825fec"},
-  "earmark_parser": {:hex, :earmark_parser, "1.4.10", "6603d7a603b9c18d3d20db69921527f82ef09990885ed7525003c7fe7dc86c56", [:mix], [], "hexpm", "8e2d5370b732385db2c9b22215c3f59c84ac7dda7ed7e544d7c459496ae519c0"},
+  "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
+  "cowlib": {:hex, :cowlib, "2.11.0", "0b9ff9c346629256c42ebe1eeb769a83c6cb771a6ee5960bd110ab0b9b872063", [:make, :rebar3], [], "hexpm", "2b3e9da0b21c4565751a6d4901c20d1b4cc25cbb7fd50d91d2ab6dd287bc86a9"},
+  "dialyxir": {:hex, :dialyxir, "1.1.0", "c5aab0d6e71e5522e77beff7ba9e08f8e02bad90dfbeffae60eaf0cb47e29488", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "07ea8e49c45f15264ebe6d5b93799d4dd56a44036cf42d0ad9c960bc266c0b9a"},
+  "earmark_parser": {:hex, :earmark_parser, "1.4.26", "f4291134583f373c7d8755566122908eb9662df4c4b63caa66a0eabe06569b0a", [:mix], [], "hexpm", "48d460899f8a0c52c5470676611c01f64f3337bad0b26ddab43648428d94aabc"},
   "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
-  "ex_doc": {:hex, :ex_doc, "0.23.0", "a069bc9b0bf8efe323ecde8c0d62afc13d308b1fa3d228b65bca5cf8703a529d", [:mix], [{:earmark_parser, "~> 1.4.0", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm", "f5e2c4702468b2fd11b10d39416ddadd2fcdd173ba2a0285ebd92c39827a5a16"},
-  "gun": {:hex, :grpc_gun, "2.0.0", "f99678a2ab975e74372a756c86ec30a8384d3ac8a8b86c7ed6243ef4e61d2729", [:rebar3], [{:cowlib, "~> 2.8.0", [hex: :cowlib, repo: "hexpm", optional: false]}], "hexpm", "03dbbca1a9c604a0267a40ea1d69986225091acb822de0b2dbea21d5815e410b"},
+  "ex_doc": {:hex, :ex_doc, "0.28.4", "001a0ea6beac2f810f1abc3dbf4b123e9593eaa5f00dd13ded024eae7c523298", [: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", "bf85d003dd34911d89c8ddb8bda1a958af3471a274a4c2150a9c01c78ac3f8ed"},
+  "gun": {:hex, :gun, "2.0.0-rc.2", "7c489a32dedccb77b6e82d1f3c5a7dadfbfa004ec14e322cdb5e579c438632d2", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}], "hexpm", "6b9d1eae146410d727140dbf8b404b9631302ecc2066d1d12f22097ad7d254fc"},
   "inch_ex": {:hex, :inch_ex, "2.0.0", "24268a9284a1751f2ceda569cd978e1fa394c977c45c331bb52a405de544f4de", [:mix], [{:bunt, "~> 0.2", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "96d0ec5ecac8cf63142d02f16b7ab7152cf0f0f1a185a80161b758383c9399a8"},
-  "jason": {:hex, :jason, "1.1.2", "b03dedea67a99223a2eaf9f1264ce37154564de899fd3d8b9a21b1a6fd64afe7", [:mix], [{:decimal, "~> 1.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "fdf843bca858203ae1de16da2ee206f53416bbda5dc8c9e78f43243de4bc3afe"},
-  "makeup": {:hex, :makeup, "1.0.5", "d5a830bc42c9800ce07dd97fa94669dfb93d3bf5fcf6ea7a0c67b2e0e4a7f26c", [:mix], [{:nimble_parsec, "~> 0.5 or ~> 1.0", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "cfa158c02d3f5c0c665d0af11512fed3fba0144cf1aadee0f2ce17747fba2ca9"},
-  "makeup_elixir": {:hex, :makeup_elixir, "0.15.0", "98312c9f0d3730fde4049985a1105da5155bfe5c11e47bdc7406d88e01e4219b", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.1", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "75ffa34ab1056b7e24844c90bfc62aaf6f3a37a15faa76b07bc5eba27e4a8b4a"},
-  "nimble_parsec": {:hex, :nimble_parsec, "1.1.0", "3a6fca1550363552e54c216debb6a9e95bd8d32348938e13de5eda962c0d7f89", [:mix], [], "hexpm", "08eb32d66b706e913ff748f11694b17981c0b04a33ef470e33e11b3d3ac8f54b"},
-  "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], [], "hexpm"},
-  "protobuf": {:hex, :protobuf, "0.7.1", "7d1b9f7d9ecb32eccd96b0c58572de4d1c09e9e3bc414e4cb15c2dce7013f195", [:mix], [], "hexpm", "6eff7a5287963719521c82e5d5b4583fd1d7cdd89ad129f0ea7d503a50a4d13f"},
-  "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm", "451d8527787df716d99dc36162fca05934915db0b6141bbdac2ea8d3c7afc7d7"},
+  "jason": {:hex, :jason, "1.3.0", "fa6b82a934feb176263ad2df0dbd91bf633d4a46ebfdffea0c8ae82953714946", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "53fc1f51255390e0ec7e50f9cb41e751c260d065dcba2bf0d08dc51a4002c2ac"},
+  "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"},
+  "nimble_parsec": {:hex, :nimble_parsec, "1.2.3", "244836e6e3f1200c7f30cb56733fd808744eca61fd182f731eac4af635cc6d0b", [:mix], [], "hexpm", "c8d789e39b9131acf7b99291e93dae60ab48ef14a7ee9d58c6964f59efb570b0"},
+  "protobuf": {:hex, :protobuf, "0.9.0", "9c1633ecc098f3d7ec0a00503e070541b0e1868114fff41523934888442319e7", [:mix], [{:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "15fb7cddc5f85b8055fedaf81a9093020e4cd283647a21deb8f7de8d243abb9d"},
+  "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
 }

src/grpc_stream_h.erl

@@ -4,10 +4,6 @@
 -module(grpc_stream_h).
 -behavior(cowboy_stream).
 
--ifdef(OTP_RELEASE).
--compile({nowarn_deprecated_function, [{erlang, get_stacktrace, 0}]}).
--endif.
-
 -export([init/3]).
 -export([data/4]).
 -export([info/3]).
@@ -325,21 +321,13 @@ send_request_body(Pid, Ref, fin, BodyLen, Data) ->
 %% @todo Better spec.
 -spec request_process(cowboy_req:req(), cowboy_middleware:env(), [module()]) -> ok.
 request_process(Req, Env, Middlewares) ->
-	OTP = erlang:system_info(otp_release),
 	try
 		execute(Req, Env, Middlewares)
 	catch
-		exit:Reason ->
-			Stacktrace = erlang:get_stacktrace(),
-			erlang:raise(exit, {Reason, Stacktrace}, Stacktrace);
-		%% OTP 19 does not propagate any exception stacktraces,
-		%% we therefore add it for every class of exception.
-		_:Reason when OTP =:= "19" ->
-			Stacktrace = erlang:get_stacktrace(),
+		exit:Reason:Stacktrace ->
 			erlang:raise(exit, {Reason, Stacktrace}, Stacktrace);
-		%% @todo I don't think this clause is necessary.
-		Class:Reason ->
-			erlang:raise(Class, Reason, erlang:get_stacktrace())
+		Class:Reason:Stacktrace ->
+			erlang:raise(Class, {Reason, Stacktrace}, Stacktrace)
 	end.
 
 execute(_, _, []) ->