Merge pull request #5 from Age15990/grpc

add gRPC support

README.md

@@ -19,6 +19,7 @@ This application is just stitching together the excellent work of [github.com/du
 - https://bitsex.net/software/2017/coap-endpoints-on-ikea-tradfri/
 
 ### Changelog
+- 2019-06-19: gRPC support by [https://github.com/Age15990](https://github.com/Age15990)
 - 2019-06-08: Configurable HTTP port by [https://github.com/Mirdinus](https://github.com/Mirdinus)
 - 2019-04-02: Configuration redone by [https://github.com/Hades32](https://github.com/Hades32)
 - 2019-04-01: Fixed issue with -authenticate
@@ -74,7 +75,7 @@ config.json -> command-line arguments -> environment variables
 _tradfri-go_ has no means of finding out the IP of the Gateway. I suggest checking your Router's list of connected devices and try to find an item starting with "GW-".
 
 ### Running in server mode
-Server mode connects to your gateway and then publishes a really simple RESTful interface for querying your gateway or mutating some state on bulbs etc:
+Server mode connects to your gateway and then publishes a really simple RESTful interface and a gRPC service for querying your gateway or mutating some state on bulbs etc:
 
     ./tradfri-go --server
 
@@ -98,6 +99,31 @@ Now, you can use the simple RESTful API provided by tradfri-go which returns mor
 Or use one of the declarative endpoints to mutate the state of the bulb:
 
     > curl -X PUT -data '{"rgbcolor":"f1e0b5"}' http://localhost:8080/api/device/65538/rgb
+
+If you want to use the gRPC service, implement your client like this:
+
+    var client pb.TradfriServiceClient
+	{
+		conn, err := grpc.Dial("localhost:8081",
+			grpc.WithInsecure(),
+		)
+		if err != nil {
+			log.Fatalf("did not connect: %v", err)
+		}
+		defer conn.Close()
+		client = pb.NewTradfriServiceClient(conn)
+	}
+
+while importing `pb "github.com/eriklupander/tradfri-go/grpc_server/golang"`.
+
+And, as simple as calling every other method in your code, request the server like this:
+
+    resp, err := client.ListGroups(context.Background(), &pb.ListGroupsRequest{})
+
+You can also install `grpcurl` and query the server via the command line:
+
+    > grpcurl -plaintext localhost:8081 grpc_server.TradfriService/ListGroups
+    > grpcurl -plaintext -d '{"id": 65552}' localhost:8081 grpc_server.TradfriService/TurnDeviceOn
 
 Just like the client mode, the application will try to use clientId/PSK from _psk.key_ or using env vars.
 

go.mod

@@ -1,14 +1,14 @@
 module github.com/eriklupander/tradfri-go
 
 require (
-	github.com/BurntSushi/toml v0.3.1 // indirect
 	github.com/bocajim/dtls v0.0.0-20190226153416-329cdc841d4f // indirect
 	github.com/dustin/go-coap v0.0.0-20170214053734-ddcc80675fa4
 	github.com/eriklupander/dtls v0.0.0-20190304211642-b36018226359
 	github.com/go-chi/chi v4.0.2+incompatible
-	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/golang/protobuf v1.3.1
+	github.com/grpc-ecosystem/go-grpc-middleware v1.0.0
+	github.com/sirupsen/logrus v1.4.2
 	github.com/spf13/pflag v1.0.2
 	github.com/spf13/viper v1.2.1
-	github.com/stretchr/testify v1.2.2 // indirect
-	golang.org/x/net v0.0.0-20190213061140-3a22650c66bd // indirect
+	google.golang.org/grpc v1.21.1
 )

go.sum

@@ -1,7 +1,9 @@
+cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
 github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/bocajim/dtls v0.0.0-20190226153416-329cdc841d4f h1:5c9skqLuQJ2iyEhmR5xiFVBvAKmFfpYfoE72UqBRZds=
 github.com/bocajim/dtls v0.0.0-20190226153416-329cdc841d4f/go.mod h1:htuSw7xe15DPFg5oJtcepjot00bvkhmXsx/b0yvFaKU=
+github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-coap v0.0.0-20170214053734-ddcc80675fa4 h1:+3t0PiNl/W3Cl4/+XmQ8gD1HQuw3ISaGHHmSBylNVJ8=
@@ -12,8 +14,18 @@ github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
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 github.com/go-chi/chi v4.0.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ=
+github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
+github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
+github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
+github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
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+github.com/grpc-ecosystem/go-grpc-middleware v1.0.0/go.mod h1:FiyG127CGDf3tlThmgyCl78X/SZQqEOJBCDaAfeWzPs=
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 github.com/hashicorp/hcl v1.0.0/go.mod h1:E5yfLk+7swimpb2L/Alb/PJmXilQ/rhwaUYs4T20WEQ=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1 h1:mweAR1A6xJ3oS2pRaGiHgQ4OO8tzTaLawm8vnODuwDk=
+github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
 github.com/magiconair/properties v1.8.0 h1:LLgXmsheXeRoUOBOjtwPQCWIYqM/LU1ayDtDePerRcY=
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@@ -22,6 +34,8 @@ github.com/pelletier/go-toml v1.2.0 h1:T5zMGML61Wp+FlcbWjRDT7yAxhJNAiPPLOFECq181
 github.com/pelletier/go-toml v1.2.0/go.mod h1:5z9KED0ma1S8pY6P1sdut58dfprrGBbd/94hg7ilaic=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/sirupsen/logrus v1.4.2 h1:SPIRibHv4MatM3XXNO2BJeFLZwZ2LvZgfQ5+UNI2im4=
+github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
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 github.com/spf13/cast v1.2.0 h1:HHl1DSRbEQN2i8tJmtS6ViPyHx35+p51amrdsiTCrkg=
@@ -32,15 +46,33 @@ github.com/spf13/pflag v1.0.2 h1:Fy0orTDgHdbnzHcsOgfCN4LtHf0ec3wwtiwJqwvf3Gc=
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+github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
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grpc_server/gen.go

@@ -0,0 +1,2 @@
+//go:generate protoc --go_out=paths=source_relative,plugins=grpc:golang/ tradfri.proto
+package grpc_server