Add Avro Seed example 🌱 (#108)

Co-authored-by: Alejandro Serrano <trupill@gmail.com>

.vscode/settings.json

@@ -0,0 +1,5 @@
+{
+  "[haskell]": {
+    "editor.defaultFormatter": "vigoo.stylish-haskell"
+  }
+}

core/optics/src/Mu/Schema/Optics.hs

@@ -3,6 +3,7 @@
 {-# language FunctionalDependencies #-}
 {-# language GADTs                  #-}
 {-# language KindSignatures         #-}
+{-# language LambdaCase             #-}
 {-# language ScopedTypeVariables    #-}
 {-# language TypeApplications       #-}
 {-# language TypeOperators          #-}
@@ -31,6 +32,8 @@ as values in the schema type.
 module Mu.Schema.Optics (
   -- * Build a term
   record
+, record1
+, _U0, _Next, _U1, _U2, _U3
   -- * Re-exported for convenience.
 , module Optics.Core
 ) where
@@ -52,6 +55,7 @@ instance {-# OVERLAPS #-}
                        r r where
   labelOptic = lens (\(TRecord r) -> runIdentity $ fieldLensGet (Proxy @fieldName) r)
                     (\(TRecord r) x -> TRecord $ fieldLensSet (Proxy @fieldName) r (Identity x))
+
 instance {-# OVERLAPPABLE #-}
          (FieldLabel w sch args fieldName r, t ~ w r)
          => LabelOptic fieldName A_Lens
@@ -64,21 +68,43 @@ instance {-# OVERLAPPABLE #-}
 record :: BuildRecord w sch args r => r -> Term w sch ('DRecord name args)
 record values = TRecord $ buildR values
 
+record1 :: BuildRecord1 w sch arg r => r -> Term w sch ('DRecord name '[arg])
+record1 value = TRecord $ buildR1 value
+
+class BuildRecord1 (w :: Type -> Type)
+                   (sch :: Schema Symbol Symbol)
+                   (arg :: FieldDef Symbol Symbol)
+                   (r :: Type) | w sch arg -> r where
+  buildR1 :: r -> NP (Field w sch) '[arg]
+
+instance {-# OVERLAPPABLE #-} (Functor w, TypeLabel w sch t1 r1)
+         => BuildRecord1 w sch ('FieldDef x1 t1) (w r1) where
+  buildR1 v = Field (typeLensSet <$> v) :* Nil
+
+instance {-# OVERLAPS #-} (TypeLabel Identity sch t1 r1)
+         => BuildRecord1 Identity sch ('FieldDef x1 t1) r1 where
+  buildR1 v = Field (typeLensSet <$> Identity v) :* Nil
+
 class BuildRecord (w :: Type -> Type)
                   (sch :: Schema Symbol Symbol)
                   (args :: [FieldDef Symbol Symbol])
                   (r :: Type) | w sch args -> r where
   buildR :: r -> NP (Field w sch) args
+
 instance BuildRecord w sch '[] () where
   buildR _ = Nil
-instance (Functor w, TypeLabel w sch t1 r1)
-         => BuildRecord w sch '[ 'FieldDef x1 t1 ] (w r1) where
-  buildR v = Field (typeLensSet <$> v) :* Nil
-instance (Functor w, TypeLabel w sch t1 r1, TypeLabel w sch t2 r2)
+
+instance {-# OVERLAPPABLE #-} (Functor w, TypeLabel w sch t1 r1, TypeLabel w sch t2 r2)
          => BuildRecord w sch '[ 'FieldDef x1 t1, 'FieldDef x2 t2 ] (w r1, w r2) where
   buildR (v1, v2) = Field (typeLensSet <$> v1)
                   :* Field (typeLensSet <$> v2) :* Nil
-instance (Functor w, TypeLabel w sch t1 r1, TypeLabel w sch t2 r2, TypeLabel w sch t3 r3)
+
+instance {-# OVERLAPS #-} (TypeLabel Identity sch t1 r1, TypeLabel Identity sch t2 r2)
+         => BuildRecord Identity sch '[ 'FieldDef x1 t1, 'FieldDef x2 t2 ] (r1, r2) where
+  buildR (v1, v2) = Field (typeLensSet <$> Identity v1)
+                  :* Field (typeLensSet <$> Identity v2) :* Nil
+
+instance {-# OVERLAPPABLE #-} (Functor w, TypeLabel w sch t1 r1, TypeLabel w sch t2 r2, TypeLabel w sch t3 r3)
          => BuildRecord w sch
                         '[ 'FieldDef x1 t1, 'FieldDef x2 t2, 'FieldDef x3 t3 ]
                         (w r1, w r2, w r3) where
@@ -86,6 +112,12 @@ instance (Functor w, TypeLabel w sch t1 r1, TypeLabel w sch t2 r2, TypeLabel w s
                       :* Field (typeLensSet <$> v2)
                       :* Field (typeLensSet <$> v3) :* Nil
 
+instance {-# OVERLAPS #-} (TypeLabel Identity sch t1 r1, TypeLabel Identity sch t2 r2, TypeLabel Identity sch t3 r3)
+         => BuildRecord Identity sch
+                        '[ 'FieldDef x1 t1, 'FieldDef x2 t2, 'FieldDef x3 t3 ] (r1, r2, r3) where
+  buildR (v1, v2, v3) = Field (typeLensSet <$> Identity v1)
+                      :* Field (typeLensSet <$> Identity v2)
+                      :* Field (typeLensSet <$> Identity v3) :* Nil
 
 class FieldLabel (w :: Type -> Type)
                  (sch :: Schema Symbol Symbol)
@@ -118,23 +150,32 @@ class TypeLabel w (sch :: Schema Symbol Symbol) (t :: FieldType Symbol) (r :: Ty
 instance TypeLabel w sch ('TPrimitive t) t where
   typeLensGet (FPrimitive x) = x
   typeLensSet = FPrimitive
+
 instance (r ~ (sch :/: t)) => TypeLabel w sch ('TSchematic t) (Term w sch r) where
   typeLensGet (FSchematic x) = x
   typeLensSet = FSchematic
+
 instance (TypeLabel w sch o r', r ~ Maybe r')
          => TypeLabel w sch ('TOption o) r where
   typeLensGet (FOption x) = typeLensGet <$> x
   typeLensSet new = FOption (typeLensSet <$> new)
+
 instance (TypeLabel w sch o r', r ~ [r'])
          => TypeLabel w sch ('TList o) r where
   typeLensGet (FList x) = typeLensGet <$> x
   typeLensSet new = FList (typeLensSet <$> new)
+
 instance ( TypeLabel w sch k k', TypeLabel w sch v v'
          , r ~ Map k' v', Ord k', Ord (FieldValue w sch k) )
          => TypeLabel w sch ('TMap k v) r where
   typeLensGet (FMap x) = mapKeys typeLensGet (typeLensGet <$> x)
   typeLensSet new = FMap (mapKeys typeLensSet (typeLensSet <$> new))
 
+instance (r ~ NS (FieldValue w sch) choices)
+         => TypeLabel w sch ('TUnion choices) r where
+  typeLensGet (FUnion x) = x
+  typeLensSet = FUnion
+
 instance (EnumLabel choices choiceName, r ~ ())
          => LabelOptic choiceName A_Prism
                        (Term w sch ('DEnum name choices))
@@ -161,3 +202,28 @@ instance {-# OVERLAPPABLE #-} EnumLabel rest c
   enumPrismBuild p = S (enumPrismBuild p)
   enumPrismMatch _ (Z _) = Nothing
   enumPrismMatch p (S x) = enumPrismMatch p x
+
+_U0 :: forall w (sch :: Schema') x xs r. TypeLabel w sch x r
+    => Prism' (NS (FieldValue w sch) (x ': xs)) r
+_U0 = prism' (Z . typeLensSet)
+             (\case (Z x) -> Just $ typeLensGet x
+                    (S _) -> Nothing)
+
+_Next :: forall w (sch :: Schema') x xs.
+         Prism' (NS (FieldValue w sch) (x ': xs))
+                (NS (FieldValue w sch) xs)
+_Next = prism' S
+               (\case (Z _) -> Nothing
+                      (S x) -> Just x)
+
+_U1 :: forall w (sch :: Schema') a b xs r. TypeLabel w sch b r
+    => Prism' (NS (FieldValue w sch) (a ': b ': xs)) r
+_U1 = _Next % _U0
+
+_U2 :: forall w (sch :: Schema') a b c xs r. TypeLabel w sch c r
+    => Prism' (NS (FieldValue w sch) (a ': b ': c ': xs)) r
+_U2 = _Next % _U1
+
+_U3 :: forall w (sch :: Schema') a b c d xs r. TypeLabel w sch d r
+    => Prism' (NS (FieldValue w sch) (a ': b ': c ': d ': xs)) r
+_U3 = _Next % _U2

default.nix

@@ -13,7 +13,8 @@ in {
   mu-example-health-check-avro = hnPkgs.mu-example-health-check-avro.components.all;
   mu-example-health-check-protobuf = hnPkgs.mu-example-health-check-protobuf.components.all;
   mu-example-route-guide = hnPkgs.mu-example-route-guide.components.all;
-  mu-example-seed = hnPkgs.mu-example-seed.components.all;
+  mu-example-seed-avro = hnPkgs.mu-example-seed-avro.components.all;
+  mu-example-seed-protobuf = hnPkgs.mu-example-seed-protobuf.components.all;
   mu-example-todolist = hnPkgs.mu-example-todolist.components.all;
   mu-example-with-persistent = hnPkgs.mu-example-with-persistent.components.all;
   mu-grpc-common = hnPkgs.mu-grpc-common.components.library;

examples/health-check/avro/mu-example-health-check-avro.cabal

@@ -1,18 +1,14 @@
 cabal-version:       >=1.10
--- Initial package description 'mu-haskell.cabal' generated by 'cabal
--- init'.  For further documentation, see
--- http://haskell.org/cabal/users-guide/
-
 name:                mu-example-health-check-avro
 version:             0.1.0.0
 -- synopsis:
 -- description:
--- bug-reports:
+bug-reports:         https://github.com/higherkindness/mu-haskell/issues
 license:             Apache-2.0
 license-file:        LICENSE
 author:              Alejandro Serrano, Flavio Corpa
 maintainer:          alejandro.serrano@47deg.com
-copyright:           Copyright © 2019-2020 47 Degrees. <http://47deg.com>
+copyright:           Copyright © 2020 47 Degrees. <http://47deg.com>
 category:            Network
 build-type:          Simple
 data-files:          healthcheck.avdl
@@ -20,11 +16,15 @@ data-files:          healthcheck.avdl
 executable health-server-avro
   main-is:             Server.hs
   other-modules:       Definition
-  build-depends:       base >=4.12 && <5, text,
-                       mu-schema, mu-rpc, mu-avro,
-                       mu-grpc-server,
-                       stm, stm-containers,
-                       conduit, stm-conduit,
+  build-depends:       base >=4.12 && <5
+                     , text
+                     , mu-schema
+                     , mu-rpc
+                     , mu-avro
+                     , mu-grpc-server
+                     , stm
+                     , stm-conduit
+                     , stm-containers,
                        deferred-folds
   hs-source-dirs:      src
   default-language:    Haskell2010
@@ -33,9 +33,12 @@ executable health-server-avro
 executable health-client-tyapps-avro
   main-is:             ClientTyApps.hs
   other-modules:       Definition
-  build-depends:       base >=4.12 && <5, text,
-                       mu-schema, mu-rpc, mu-avro,
-                       mu-grpc-client, conduit
+  build-depends:       base >=4.12 && <5
+                     , text
+                     , mu-schema
+                     , mu-rpc
+                     , mu-avro
+                     , mu-grpc-client
   hs-source-dirs:      src
   default-language:    Haskell2010
   ghc-options:         -Wall
@@ -43,9 +46,12 @@ executable health-client-tyapps-avro
 executable health-client-record-avro
   main-is:             ClientRecord.hs
   other-modules:       Definition
-  build-depends:       base >=4.12 && <5, text,
-                       mu-schema, mu-rpc, mu-avro,
-                       mu-grpc-client, conduit
+  build-depends:       base >=4.12 && <5
+                     , text
+                     , mu-schema
+                     , mu-rpc
+                     , mu-avro
+                     , mu-grpc-client
   hs-source-dirs:      src
   default-language:    Haskell2010
   ghc-options:         -Wall

examples/health-check/avro/src/ClientRecord.hs

@@ -8,10 +8,8 @@
 {-# language TypeOperators       #-}
 module Main where
 
-import           Data.Conduit
-import qualified Data.Conduit.Combinators as C
-import qualified Data.Text                as T
-import           GHC.Generics             (Generic)
+import qualified Data.Text             as T
+import           GHC.Generics          (Generic)
 import           System.Environment
 
 import           Mu.GRpc.Client.Record
@@ -64,11 +62,3 @@ update client who newstatus = do
   putStrLn ("UNARY: Was setting successful? " <> show r)
   rstatus <- check client hcm
   putStrLn ("UNARY: Checked the status of " <> who <> ". Obtained: " <> show rstatus)
-
-{-
-watching :: HealthCall -> String -> IO ()
-watching client who = do
-  let hcm = HealthCheckMsg (T.pack who)
-  stream <- watch client hcm
-  runConduit $ stream .| C.mapM_ print
--}

examples/health-check/avro/src/ClientTyApps.hs

@@ -7,9 +7,7 @@
 {-# language TypeOperators       #-}
 module Main where
 
-import           Data.Conduit
-import qualified Data.Conduit.Combinators as C
-import qualified Data.Text                as T
+import qualified Data.Text             as T
 import           System.Environment
 
 import           Mu.GRpc.Client.TyApps
@@ -23,7 +21,6 @@ main = do -- Setup the client
   -- Execute command
   args <- getArgs
   case args of
-    -- ["watch" , who]            -> watching client who
     ["simple", who]            -> simple client who
     ["update", who]            -> update client who "SERVING"
     ["update", who, newstatus] -> update client who newstatus
@@ -53,11 +50,3 @@ update client who newstatus = do
   rstatus :: GRpcReply ServerStatusMsg
     <- gRpcCall @'MsgAvro @HealthCheckService @"check" client hcm
   putStrLn ("UNARY: Checked the status of " <> who <> ". Obtained: " <> show rstatus)
-
-{-
-watching :: GrpcClient -> String -> IO ()
-watching client who = do
-  let hcm = HealthCheckMsg (T.pack who)
-  replies <- gRpcCall @'MsgAvro @HealthCheckService @"watch" client hcm
-  runConduit $ replies .| C.mapM_ (print :: GRpcReply ServerStatusMsg -> IO ())
--}

examples/health-check/avro/src/Definition.hs

@@ -21,7 +21,7 @@ import           Mu.Quasi.Avro
 import           Mu.Schema
 
 #if __GHCIDE__
-avdl "HealthCheckSchema" "HealthCheckService" "examples/health-check" "healthcheck.proto"
+avdl "HealthCheckSchema" "HealthCheckService" "examples/health-check/avro" "healthcheck.avdl"
 #else
 avdl "HealthCheckSchema" "HealthCheckService" "." "healthcheck.avdl"
 #endif

examples/health-check/avro/src/Server.hs

@@ -5,14 +5,12 @@
 module Main where
 
 import           Control.Concurrent.STM
-import           Data.Conduit
-import qualified Data.Conduit.Combinators as C
 import           Data.Conduit.TMChan
 import           Data.Functor.Identity
-import           Data.Maybe               (fromMaybe)
-import qualified Data.Text                as T
+import           Data.Maybe             (fromMaybe)
+import qualified Data.Text              as T
 import           DeferredFolds.UnfoldlM
-import qualified StmContainers.Map        as M
+import qualified StmContainers.Map      as M
 
 import           Mu.GRpc.Server
 import           Mu.Server
@@ -71,7 +69,7 @@ cleanAll_ m = alwaysOk $ do
   putStrLn "cleanAll"
   atomically $ M.reset m
 
-{-
+{- Note: no "streams" in avro
 watch_ :: StatusUpdates
        -> HealthCheckMsg
        -> ConduitT ServerStatusMsg Void ServerErrorIO ()

examples/health-check/protobuf/src/Definition.hs

@@ -13,14 +13,14 @@
 {-# language TypeOperators         #-}
 module Definition where
 
-import           Data.Text             as T
+import           Data.Text     as T
 import           GHC.Generics
 
 import           Mu.Quasi.GRpc
 import           Mu.Schema
 
 #if __GHCIDE__
-grpc "HealthCheckSchema" id "examples/health-check/healthcheck.proto"
+grpc "HealthCheckSchema" id "examples/health-check/protobuf/healthcheck.proto"
 #else
 grpc "HealthCheckSchema" id "healthcheck.proto"
 #endif

examples/seed/avro/README.md

@@ -1,11 +1,11 @@
-# Seed RPC example
+# Seed RPC example with Avro!
 
 ## Execution
 
 Running the server:
 
 ```bash
-stack run seed-server
+stack run mu-example-seed-avro
 ```
 
 [comment]: # (Start Copyright)
@@ -13,6 +13,6 @@ stack run seed-server
 
 Mu is designed and developed by 47 Degrees
 
-Copyright (C) 2019-2020 47 Degrees. <http://47deg.com>
+Copyright © 2020 47 Degrees. <http://47deg.com>
 
 [comment]: # (End Copyright)

examples/seed/avro/hie.yaml

@@ -0,0 +1 @@
+cradle: { stack: { component: "mu-example-seed-avro:exe:seed-server" } }

examples/seed/avro/mu-example-seed-avro.cabal

@@ -0,0 +1,30 @@
+name:                mu-example-seed-avro
+version:             0.1.0.0
+-- synopsis:
+-- description:
+homepage:            https://github.com/higherkindness/mu-haskell/examples/seed/avro#readme
+license:             Apache-2.0
+license-file:        LICENSE
+author:              Flavio Corpa
+maintainer:          flavio.corpa@47deg.com
+copyright:           Copyright © 2020 47 Degrees. <http://47deg.com>
+category:            Web
+build-type:          Simple
+cabal-version:       >=1.10
+extra-source-files:  README.md
+data-files:          seed.avdl
+
+executable mu-example-seed-avro
+  hs-source-dirs:      src
+  main-is:             Main.hs
+  other-modules:       Schema
+  default-language:    Haskell2010
+  build-depends:       base >= 4.12 && < 5
+                     , monad-logger
+                     , mu-avro
+                     , mu-schema
+                     , mu-rpc
+                     , mu-optics
+                     , mu-grpc-server
+                     , text
+  ghc-options:         -Wall -fprint-potential-instances

examples/seed/avro/seed.avdl

@@ -0,0 +1,25 @@
+@namespace("example.seed.server.protocol.avro")
+protocol Service {
+  record Person {
+    string name;
+    int age;
+  }
+
+  error NotFoundError {
+    string message;
+  }
+
+  error DuplicatedPersonError {
+    string message;
+  }
+
+  record PeopleRequest {
+    string name;
+  }
+
+  record PeopleResponse {
+    union { Person, NotFoundError, DuplicatedPersonError } result;
+  }
+
+  example.seed.server.protocol.avro.PeopleResponse getPerson(example.seed.server.protocol.avro.PeopleRequest request);
+}

examples/seed/avro/src/Main.hs

@@ -0,0 +1,41 @@
+{-# language DataKinds             #-}
+{-# language DuplicateRecordFields #-}
+{-# language FlexibleContexts      #-}
+{-# language OverloadedLabels      #-}
+{-# language OverloadedStrings     #-}
+{-# language PartialTypeSignatures #-}
+{-# language TypeOperators         #-}
+{-# OPTIONS_GHC -fno-warn-partial-type-signatures #-}
+
+module Main where
+
+import           Control.Monad.Logger
+import           Data.Int
+import           Data.Functor.Identity
+import           Mu.GRpc.Server
+import           Mu.Schema
+import           Mu.Schema.Optics
+import           Mu.Server
+
+import           Schema
+
+type Person         = Term Identity SeedSchema (SeedSchema :/: "Person")
+type PeopleRequest  = Term Identity SeedSchema (SeedSchema :/: "PeopleRequest")
+type PeopleResponse = Term Identity SeedSchema (SeedSchema :/: "PeopleResponse")
+
+main :: IO ()
+main = do
+  putStrLn "running seed application"
+  runGRpcAppTrans msgAvro 8080 runStderrLoggingT server
+
+-- Server implementation
+-- https://github.com/higherkindness/mu/blob/master/modules/examples/seed/server/modules/process/src/main/scala/example/seed/server/process/ProtoPeopleServiceHandler.scala
+
+server :: (MonadServer m, MonadLogger m) => ServerT Identity PeopleService m _
+server = Server (getPerson :<|>: H0)
+
+evolvePerson :: PeopleRequest -> PeopleResponse
+evolvePerson req = record1 (review _U0 $ record (req ^. #name, 18 :: Int32))
+
+getPerson :: Monad m => PeopleRequest -> m PeopleResponse
+getPerson = pure . evolvePerson

examples/seed/avro/src/Schema.hs

@@ -0,0 +1,21 @@
+{-# language CPP                   #-}
+{-# language DataKinds             #-}
+{-# language DeriveAnyClass        #-}
+{-# language DeriveGeneric         #-}
+{-# language DuplicateRecordFields #-}
+{-# language FlexibleContexts      #-}
+{-# language FlexibleInstances     #-}
+{-# language MultiParamTypeClasses #-}
+{-# language PolyKinds             #-}
+{-# language TemplateHaskell       #-}
+{-# language TypeFamilies          #-}
+{-# language TypeOperators         #-}
+module Schema where
+
+import           Mu.Quasi.Avro
+
+#if __GHCIDE__
+avdl "SeedSchema" "PeopleService" "examples/seed/avro" "seed.avdl"
+#else
+avdl "SeedSchema" "PeopleService" "." "seed.avdl"
+#endif

examples/seed/avro/stack.yaml

@@ -0,0 +1,17 @@
+resolver: lts-14.22
+allow-newer: true
+extra-deps:
+# mu
+- mu-schema-0.1.0.0
+- mu-rpc-0.1.0.0
+- mu-optics-0.1.0.0
+- mu-avro-0.1.0.0
+- mu-grpc-server-0.1.0.1
+- compendium-client-0.1.0.1
+# dependencies of mu
+- http2-client-0.9.0.0
+- http2-grpc-types-0.5.0.0
+- http2-grpc-proto3-wire-0.1.0.0
+- warp-grpc-0.3.0.0
+- proto3-wire-1.1.0
+- language-protobuf-1.0.1

examples/seed/hie.yaml

@@ -1 +0,0 @@
-cradle: { stack: { component: "mu-example-seed:exe:seed-server" } }

examples/seed/protobuf/.gitignore

@@ -0,0 +1,3 @@
+.stack-work/
+stack*.yaml.lock
+*~

examples/seed/protobuf/LICENSE

@@ -0,0 +1,202 @@
+
+                                 Apache License
+                           Version 2.0, January 2004
+                        http://www.apache.org/licenses/
+
+   TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION
+
+   1. Definitions.
+
+      "License" shall mean the terms and conditions for use, reproduction,
+      and distribution as defined by Sections 1 through 9 of this document.
+
+      "Licensor" shall mean the copyright owner or entity authorized by
+      the copyright owner that is granting the License.
+
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+      outstanding shares, or (iii) beneficial ownership of such entity.
+
+      "You" (or "Your") shall mean an individual or Legal Entity
+      exercising permissions granted by this License.
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+      "Source" form shall mean the preferred form for making modifications,
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examples/seed/protobuf/README.md

@@ -0,0 +1,18 @@
+# Seed RPC example with Protobuf
+
+## Execution
+
+Running the server:
+
+```bash
+stack run mu-example-seed-protobuf
+```
+
+[comment]: # (Start Copyright)
+# Copyright
+
+Mu is designed and developed by 47 Degrees
+
+Copyright © 2020 47 Degrees. <http://47deg.com>
+
+[comment]: # (End Copyright)

examples/seed/protobuf/Setup.hs

@@ -0,0 +1,2 @@
+import Distribution.Simple
+main = defaultMain

examples/seed/protobuf/hie.yaml

@@ -0,0 +1 @@
+cradle: { stack: { component: "mu-example-seed-protobuf:exe:seed-server" } }

examples/seed/protobuf/mu-example-seed-protobuf.cabal

@@ -1,8 +1,8 @@
-name:                mu-example-seed
+name:                mu-example-seed-protobuf
 version:             0.1.0.0
 -- synopsis:
 -- description:
-homepage:            https://github.com/higherkindness/mu-haskell/examples/seed#readme
+homepage:            https://github.com/higherkindness/mu-haskell/examples/seed/protobuf#readme
 license:             Apache-2.0
 license-file:        LICENSE
 author:              Flavio Corpa

examples/seed/protobuf/src/Optics.hs

@@ -38,7 +38,7 @@ server :: (MonadServer m, MonadLogger m) => ServerT Maybe PeopleService m _
 server = Server (getPerson :<|>: getPersonStream :<|>: H0)
 
 evolvePerson :: PeopleRequest -> PeopleResponse
-evolvePerson req = record (Just $ record (req ^. #name, Just 18))
+evolvePerson req = record1 (Just $ record (req ^. #name, Just 18))
 
 getPerson :: Monad m => PeopleRequest -> m PeopleResponse
 getPerson = pure . evolvePerson

examples/seed/protobuf/src/Schema.hs

@@ -13,7 +13,7 @@ module Schema where
 import           Mu.Quasi.GRpc
 
 #if __GHCIDE__
-grpc "SeedSchema" id "examples/seed/seed.proto"
+grpc "SeedSchema" id "examples/seed/protobuf/seed.proto"
 #else
 grpc "SeedSchema" id "seed.proto"
 #endif

examples/with-persistent/src/ClientOptics.hs

@@ -26,7 +26,7 @@ get :: GRpcConnection PersistentService 'MsgProtoBuf -> String -> IO ()
 get client idPerson = do
   let req = readMaybe idPerson
   putStrLn $ "GET: is there some person with id: " ++ idPerson ++ "?"
-  response <- (client ^. #getPerson) (record req)
+  response <- (client ^. #getPerson) (record1 req)
   putStrLn $ "GET: response was: " ++ show response
 
 add :: GRpcConnection PersistentService 'MsgProtoBuf -> String -> String -> IO ()

stack-nightly.yaml

@@ -15,7 +15,8 @@ packages:
 - examples/health-check/avro
 - examples/health-check/protobuf
 - examples/route-guide
-- examples/seed
+- examples/seed/avro
+- examples/seed/protobuf
 - examples/todolist
 - examples/with-persistent
 - compendium-client

stack.yaml

@@ -15,7 +15,8 @@ packages:
 - examples/health-check/avro
 - examples/health-check/protobuf
 - examples/route-guide
-- examples/seed
+- examples/seed/avro
+- examples/seed/protobuf
 - examples/todolist
 - examples/with-persistent
 - compendium-client

templates/grpc-server-avro.hsfiles

@@ -55,7 +55,7 @@ stack*.yaml.lock
 {-# START_FILE README.md #-}
 # {{name}}
 
-{-# START_FILE {{name}}.proto #-}
+{-# START_FILE {{name}}.avdl #-}
 @namespace("{{name}}")
 protocol Service {