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Philipp Reiter
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Sep 28, 2024
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GOCMD=go | ||
GOBUILD=$(GOCMD) build | ||
GOCLEAN=$(GOCMD) clean | ||
PROTOC=protoc | ||
PROTOS= | ||
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PROTOC_GEN_GO=--go_out=./proto --go_opt=paths=source_relative --go-grpc_out=./proto --go-grpc_opt=paths=source_relative | ||
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BINARY_NAME=reflection | ||
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out = "." | ||
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all: clean build run | ||
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build: | ||
$(PROTOC) $(PROTOC_GEN_GO) order.proto | ||
$(GOBUILD) -o $(BINARY_NAME) -v ./main.go | ||
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clean: | ||
$(GOCLEAN) | ||
rm -f $(BINARY_NAME) | ||
rm -f proto/order.pb.go | ||
rm -f proto/order_grpc.pb.go | ||
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run: build | ||
./$(BINARY_NAME) |
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package main | ||
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import ( | ||
"flag" | ||
"fmt" | ||
"log" | ||
"net" | ||
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pb "grpc_simple/proto" | ||
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"google.golang.org/grpc" | ||
"google.golang.org/grpc/reflection" | ||
) | ||
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var ( | ||
port = flag.Int("port", 50052, "The server port") | ||
) | ||
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type Server struct { | ||
pb.UnimplementedOrderServiceServer | ||
} | ||
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func main() { | ||
lis, err := net.Listen("tcp", fmt.Sprintf(":%d", *port)) | ||
if err != nil { | ||
log.Fatalf("failed to listen: %v", err) | ||
} | ||
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s := grpc.NewServer() | ||
pb.RegisterOrderServiceServer(s, &Server{}) | ||
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reflection.Register(s) | ||
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fmt.Println("Listening on", lis.Addr()) | ||
if err := s.Serve(lis); err != nil { | ||
log.Fatalf("Failed to serve grpc Server: %v", err) | ||
} | ||
} |
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syntax = "proto3"; | ||
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option go_package = "./proto"; | ||
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package proto; | ||
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service OrderService { | ||
// Get a order by its id | ||
rpc GetOrder (GetOrderReq) returns (GetOrderResp) {} | ||
// Return all available orders | ||
rpc ListOrders (ListOrdersReq) returns (ListOrdersResp) {} | ||
} | ||
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message GetOrderReq { | ||
// The account id. | ||
string account_id = 1; | ||
// The id of the order. | ||
string order_id = 2; | ||
} | ||
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message GetOrderResp { | ||
// The order matching the order_id. | ||
Order order = 1; | ||
} | ||
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message ListOrdersReq { | ||
// The account id. | ||
string account_id = 1; | ||
} | ||
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message ListOrdersResp { | ||
// All available orders. | ||
repeated Order orders = 1; | ||
} | ||
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message Order { | ||
// The id of the order. | ||
string id = 1; | ||
// The name of the order. | ||
string name = 2; | ||
} |
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## Running the server | ||
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``` | ||
make run | ||
``` | ||
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## Calling the endpoints | ||
``` | ||
grpcurl -proto greeter.proto -plaintext -d '{"name":"Alice"}' localhost:50051 proto.Greeter/SayHello | ||
grpcurl -proto timekeeper.proto -plaintext localhost:50051 proto.TimeKeeper/GetDate | ||
grpcurl -proto timekeeper.proto -plaintext -d '{"number":1}' localhost:50051 proto.TimeKeeper/GetNameOfMonth | ||
grpcurl -proto debugger.proto -plaintext -H 'your-metadata-key: your-metadata-value' localhost:50051 proto.Debugger/GetMetadata | ||
``` |
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module grpc_simple | ||
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go 1.21 | ||
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toolchain go1.22.7 | ||
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require google.golang.org/grpc v1.67.0 | ||
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require google.golang.org/protobuf v1.34.2 | ||
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require golang.org/x/net v0.29.0 // indirect | ||
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require ( | ||
golang.org/x/sys v0.25.0 // indirect | ||
golang.org/x/text v0.18.0 // indirect | ||
google.golang.org/genproto/googleapis/rpc v0.0.0-20240924160255-9d4c2d233b61 // indirect | ||
) |
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github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk= | ||
github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg= | ||
github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY= | ||
github.com/golang/protobuf v1.5.4 h1:i7eJL8qZTpSEXOPTxNKhASYpMn+8e5Q6AdndVa1dWek= | ||
github.com/golang/protobuf v1.5.4/go.mod h1:lnTiLA8Wa4RWRcIUkrtSVa5nRhsEGBg48fD6rSs7xps= | ||
github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE= | ||
github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI= | ||
golang.org/x/net v0.23.0 h1:7EYJ93RZ9vYSZAIb2x3lnuvqO5zneoD6IvWjuhfxjTs= | ||
golang.org/x/net v0.23.0/go.mod h1:JKghWKKOSdJwpW2GEx0Ja7fmaKnMsbu+MWVZTokSYmg= | ||
golang.org/x/net v0.29.0 h1:5ORfpBpCs4HzDYoodCDBbwHzdR5UrLBZ3sOnUJmFoHo= | ||
golang.org/x/net v0.29.0/go.mod h1:gLkgy8jTGERgjzMic6DS9+SP0ajcu6Xu3Orq/SpETg0= | ||
golang.org/x/sys v0.18.0 h1:DBdB3niSjOA/O0blCZBqDefyWNYveAYMNF1Wum0DYQ4= | ||
golang.org/x/sys v0.18.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= | ||
golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34= | ||
golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA= | ||
golang.org/x/text v0.14.0 h1:ScX5w1eTa3QqT8oi6+ziP7dTV1S2+ALU0bI+0zXKWiQ= | ||
golang.org/x/text v0.14.0/go.mod h1:18ZOQIKpY8NJVqYksKHtTdi31H5itFRjB5/qKTNYzSU= | ||
golang.org/x/text v0.18.0 h1:XvMDiNzPAl0jr17s6W9lcaIhGUfUORdGCNsuLmPG224= | ||
golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY= | ||
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= | ||
google.golang.org/genproto/googleapis/rpc v0.0.0-20231106174013-bbf56f31fb17 h1:Jyp0Hsi0bmHXG6k9eATXoYtjd6e2UzZ1SCn/wIupY14= | ||
google.golang.org/genproto/googleapis/rpc v0.0.0-20231106174013-bbf56f31fb17/go.mod h1:oQ5rr10WTTMvP4A36n8JpR1OrO1BEiV4f78CneXZxkA= | ||
google.golang.org/genproto/googleapis/rpc v0.0.0-20240924160255-9d4c2d233b61 h1:N9BgCIAUvn/M+p4NJccWPWb3BWh88+zyL0ll9HgbEeM= | ||
google.golang.org/genproto/googleapis/rpc v0.0.0-20240924160255-9d4c2d233b61/go.mod h1:UqMtugtsSgubUsoxbuAoiCXvqvErP7Gf0so0mK9tHxU= | ||
google.golang.org/grpc v1.61.0 h1:TOvOcuXn30kRao+gfcvsebNEa5iZIiLkisYEkf7R7o0= | ||
google.golang.org/grpc v1.61.0/go.mod h1:VUbo7IFqmF1QtCAstipjG0GIoq49KvMe9+h1jFLBNJs= | ||
google.golang.org/grpc v1.67.0 h1:IdH9y6PF5MPSdAntIcpjQ+tXO41pcQsfZV2RxtQgVcw= | ||
google.golang.org/grpc v1.67.0/go.mod h1:1gLDyUQU7CTLJI90u3nXZ9ekeghjeM7pTDZlqFNg2AA= | ||
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= | ||
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= | ||
google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI= | ||
google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos= | ||
google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg= | ||
google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw= |
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