From d1c12e4302d941a80a9bc94a2a4c9f820c7c924d Mon Sep 17 00:00:00 2001 From: Asim Aslam Date: Thu, 5 Jan 2017 15:09:27 +0000 Subject: [PATCH] move go-micro examples links --- README.md | 8 +- examples/README.md | 30 -- examples/client/codegen/README.md | 150 --------- examples/client/codegen/codegen.go | 79 ----- examples/client/dc_filter/dc_filter.go | 88 ----- examples/client/dc_selector/dc_selector.go | 134 -------- examples/client/main.go | 143 -------- examples/client/pub/pub.go | 40 --- examples/client/selector/selector.go | 124 ------- examples/client/wrapper/wrapper.go | 109 ------ examples/pubsub/consumer/consumer.go | 51 --- examples/pubsub/main.go | 59 ---- examples/pubsub/producer/producer.go | 49 --- examples/server/Dockerfile | 5 - examples/server/README.md | 27 -- examples/server/codegen/codegen.go | 83 ----- examples/server/handler/example.go | 58 ---- examples/server/main.go | 51 --- examples/server/proto/example/example.pb.go | 355 -------------------- examples/server/proto/example/example.proto | 37 -- examples/server/subscriber/subscriber.go | 20 -- examples/server/wrapper/main.go | 79 ----- examples/service/README.md | 37 -- examples/service/main.go | 86 ----- examples/service/proto/greeter.pb.go | 124 ------- examples/service/proto/greeter.proto | 13 - examples/service/wrapper/README.md | 3 - examples/service/wrapper/main.go | 116 ------- 28 files changed, 4 insertions(+), 2154 deletions(-) delete mode 100644 examples/README.md delete mode 100644 examples/client/codegen/README.md delete mode 100644 examples/client/codegen/codegen.go delete mode 100644 examples/client/dc_filter/dc_filter.go delete mode 100644 examples/client/dc_selector/dc_selector.go delete mode 100644 examples/client/main.go delete mode 100644 examples/client/pub/pub.go delete mode 100644 examples/client/selector/selector.go delete mode 100644 examples/client/wrapper/wrapper.go delete mode 100644 examples/pubsub/consumer/consumer.go delete mode 100644 examples/pubsub/main.go delete mode 100644 examples/pubsub/producer/producer.go delete mode 100644 examples/server/Dockerfile delete mode 100644 examples/server/README.md delete mode 100644 examples/server/codegen/codegen.go delete mode 100644 examples/server/handler/example.go delete mode 100644 examples/server/main.go delete mode 100644 examples/server/proto/example/example.pb.go delete mode 100644 examples/server/proto/example/example.proto delete mode 100644 examples/server/subscriber/subscriber.go delete mode 100644 examples/server/wrapper/main.go delete mode 100644 examples/service/README.md delete mode 100644 examples/service/main.go delete mode 100644 examples/service/proto/greeter.pb.go delete mode 100644 examples/service/proto/greeter.proto delete mode 100644 examples/service/wrapper/README.md delete mode 100644 examples/service/wrapper/main.go diff --git a/README.md b/README.md index f2ab09a8..c6004234 100644 --- a/README.md +++ b/README.md @@ -27,7 +27,7 @@ Go Micro abstracts way the details of distributed systems. Here are the main fea ## Learn By Example -An example service can be found in [**examples/service**](https://github.com/micro/go-micro/tree/master/examples/service). The [**examples**](https://github.com/micro/go-micro/tree/master/examples) directory contains many more examples for using things such as middleware/wrappers, selector filters, pub/sub and code generation. +An example service can be found in [**examples/service**](https://github.com/micro/examples/tree/master/service). The [**examples**](https://github.com/micro/examples) directory contains many more examples for using things such as middleware/wrappers, selector filters, pub/sub and code generation. For the complete greeter example look at [**examples/greeter**](https://github.com/micro/examples/tree/master/greeter). Other examples can be found throughout the GitHub repository. @@ -123,7 +123,7 @@ There's still a need for proto compiler to generate Go stub code from our proto ```shell protoc -I$GOPATH/src --go_out=plugins=micro:$GOPATH/src \ - $GOPATH/src/github.com/micro/go-micro/examples/service/proto/greeter.proto + $GOPATH/src/github.com/micro/examples/service/proto/greeter.proto ``` ### Define the service @@ -140,7 +140,7 @@ import ( "fmt" micro "github.com/micro/go-micro" - proto "github.com/micro/go-micro/examples/service/proto" + proto "github.com/micro/examples/service/proto" "golang.org/x/net/context" ) @@ -198,7 +198,7 @@ import ( "fmt" micro "github.com/micro/go-micro" - proto "github.com/micro/go-micro/examples/service/proto" + proto "github.com/micro/examples/service/proto" "golang.org/x/net/context" ) diff --git a/examples/README.md b/examples/README.md deleted file mode 100644 index 8048a370..00000000 --- a/examples/README.md +++ /dev/null @@ -1,30 +0,0 @@ -# Examples - -This directory contains example usage of Micro - -**Client** contains examples usage of the Client package to call a service. - - main.go - calls each of the go.micro.srv.example handlers and includes the use of the streaming handler - - codegen - demonstrates how to use code generation to remove boilerplate code - - dc_filter - shows how to use Select filters inside a call wrapper for filtering to the local DC - - dc_selector - is the same as dc_filter but as a Selector implementation itself - - pub - publishes messages using the Publish method. By default encoding in protobuf - - selector - shows how to write and load your own Selector - - wrapper - provides examples for how to use client Wrappers (middleware) - -**PubSub** contains an example of using the Broker for Publish and Subscribing. - - main.go - demonstrates simple runs pub-sub as two go routines running for 10 seconds. - - producer - publishes messages to the broker every second - - consumer - consumes any messages sent by the producer - -**Server** contains example usage of the Server package to server requests. - - main.go - initialises and runs the the server - - handler - is an example RPC request handler for the Server - - proto - contains the protobuf defintion for the Server API - - subscriber - is a handler for subscribing via the Server - - wrapper - demonstrates use of a server HandlerWrapper - - codegen - shows how to use codegenerated registration to reduce boilerplate - -**Service** contains example usage of the top level Service in go-micro. - - main.go - is the main definition of the service, handler and client - - proto - contains the protobuf definition of the API - - wrapper - demonstrates the use of Client and Server Wrappers diff --git a/examples/client/codegen/README.md b/examples/client/codegen/README.md deleted file mode 100644 index d8069c91..00000000 --- a/examples/client/codegen/README.md +++ /dev/null @@ -1,150 +0,0 @@ -# Code Generation [Experimental] - -We're experimenting with code generation to reduce the amount of boiler plate code written. - -## Example - -Going from this -```golang -req := client.NewRequest("go.micro.srv.example", "Example.Call", &example.Request{ - Name: "John", -}) - -rsp := &example.Response{} - -if err := client.Call(context.Background(), req, rsp); err != nil { - return err -} -``` - -To - -```golang -rsp, err := cl.Call(context.Background(), &example.Request{Name: "John"}) -if err != nil { - return err -} -``` - -## Generation of stub code for the example service - -```shell -go get github.com/micro/protobuf/protoc-gen-go -cd examples/server/proto/example -protoc --go_out=plugins=micro:. example.proto -``` - -Look at examples/server/proto/example/example.pb.go -to see the generated code. - -## Guide - -### Download the protoc-gen-go code - -```shell -go get github.com/micro/protobuf/protoc-gen-go -``` - -### Define your proto service. - -hello.proto -```shell -syntax = "proto3"; - -// package name is used as the service name for discovery -// if service name is not passed in when initialising the -// client -package go.micro.srv.greeter; - -service Say { - rpc Hello(Request) returns (Response) {} -} - -message Request { - optional string name = 1; -} - -message Response { - optional string msg = 1; -} -``` - -**Note: Remember to set package name in the proto, it's used to generate -the service for discovery.** - -### Generate code - -```shell -protoc --go_out=plugins=micro:. hello.proto -``` - -### Generated code - -```shell -// Client API for Say service - -type SayClient interface { - Hello(ctx context.Context, in *Request) (*Response, error) -} - -type sayClient struct { - c client.Client - serviceName string -} - -func NewSayClient(serviceName string, c client.Client) SayClient { - if c == nil { - c = client.NewClient() - } - if len(serviceName) == 0 { - serviceName = "go.micro.srv.greeter" - } - return &sayClient{ - c: c, - serviceName: serviceName, - } -} - -func (c *sayClient) Hello(ctx context.Context, in *Request) (*Response, error) { - req := c.c.NewRequest(c.serviceName, "Say.Hello", in) - out := new(Response) - err := c.c.Call(ctx, req, out) - if err != nil { - return nil, err - } - return out, nil -} - -// Server API for Say service - -type SayHandler interface { - Hello(context.Context, *Request, *Response) error -} - -func RegisterSayHandler(s server.Server, hdlr SayHandler) { - s.Handle(s.NewHandler(hdlr)) -} -``` - -### Use the client -```golang - -import ( - "fmt" - - "golang.org/x/net/context" - "github.com/micro/go-micro/client" - hello "path/to/hello/proto" -) - -func main() { - cl := hello.NewSayClient("go.micro.srv.greeter", client.DefaultClient) - // alternative initialisation - // cl := hello.NewSayClient("", nil) - - rsp, err := cl.Hello(contex.Background(), &hello.Request{"Name": "John"}) - if err != nil { - fmt.Println(err) - } -} -``` diff --git a/examples/client/codegen/codegen.go b/examples/client/codegen/codegen.go deleted file mode 100644 index 6c828330..00000000 --- a/examples/client/codegen/codegen.go +++ /dev/null @@ -1,79 +0,0 @@ -package main - -import ( - "fmt" - - "github.com/micro/go-micro/cmd" - example "github.com/micro/go-micro/examples/server/proto/example" - "golang.org/x/net/context" -) - -var ( - cl = example.NewExampleClient("go.micro.srv.example", nil) -) - -func call(i int) { - rsp, err := cl.Call(context.Background(), &example.Request{Name: "John"}) - if err != nil { - fmt.Println("call err: ", err, rsp) - return - } - fmt.Println("Call:", i, "rsp:", rsp.Msg) -} - -func stream(i int) { - stream, err := cl.Stream(context.Background(), &example.StreamingRequest{Count: int64(i)}) - if err != nil { - fmt.Println("err:", err) - return - } - for j := 0; j < i; j++ { - rsp, err := stream.Recv() - if err != nil { - fmt.Println("err:", err) - break - } - fmt.Println("Stream: rsp:", rsp.Count) - } - if err := stream.Close(); err != nil { - fmt.Println("stream close err:", err) - } -} - -func pingPong(i int) { - stream, err := cl.PingPong(context.Background()) - if err != nil { - fmt.Println("err:", err) - return - } - for j := 0; j < i; j++ { - if err := stream.Send(&example.Ping{Stroke: int64(j)}); err != nil { - fmt.Println("err:", err) - return - } - rsp, err := stream.Recv() - if err != nil { - fmt.Println("recv err", err) - break - } - fmt.Printf("Sent ping %v got pong %v\n", j, rsp.Stroke) - } - if err := stream.Close(); err != nil { - fmt.Println("stream close err:", err) - } -} - -func main() { - cmd.Init() - - fmt.Println("\n--- Call example ---\n") - for i := 0; i < 10; i++ { - call(i) - } - - fmt.Println("\n--- Streamer example ---\n") - stream(10) - - fmt.Println("\n--- Ping Pong example ---\n") - pingPong(10) -} diff --git a/examples/client/dc_filter/dc_filter.go b/examples/client/dc_filter/dc_filter.go deleted file mode 100644 index 9b018281..00000000 --- a/examples/client/dc_filter/dc_filter.go +++ /dev/null @@ -1,88 +0,0 @@ -package main - -import ( - "fmt" - "math/rand" - "time" - - "github.com/micro/go-micro/client" - "github.com/micro/go-micro/cmd" - "github.com/micro/go-micro/metadata" - "github.com/micro/go-micro/registry" - "github.com/micro/go-micro/selector" - "golang.org/x/net/context" - - example "github.com/micro/go-micro/examples/server/proto/example" -) - -func init() { - rand.Seed(time.Now().Unix()) -} - -// A Wrapper that creates a Datacenter Selector Option -type dcWrapper struct { - client.Client -} - -func (dc *dcWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error { - md, _ := metadata.FromContext(ctx) - - filter := func(services []*registry.Service) []*registry.Service { - for _, service := range services { - var nodes []*registry.Node - for _, node := range service.Nodes { - if node.Metadata["datacenter"] == md["datacenter"] { - nodes = append(nodes, node) - } - } - service.Nodes = nodes - } - return services - } - - callOptions := append(opts, client.WithSelectOption( - selector.WithFilter(filter), - )) - - fmt.Printf("[DC Wrapper] filtering for datacenter %s\n", md["datacenter"]) - return dc.Client.Call(ctx, req, rsp, callOptions...) -} - -func NewDCWrapper(c client.Client) client.Client { - return &dcWrapper{c} -} - -func call(i int) { - // Create new request to service go.micro.srv.example, method Example.Call - req := client.NewRequest("go.micro.srv.example", "Example.Call", &example.Request{ - Name: "John", - }) - - // create context with metadata - ctx := metadata.NewContext(context.Background(), map[string]string{ - "datacenter": "local", - }) - - rsp := &example.Response{} - - // Call service - if err := client.Call(ctx, req, rsp); err != nil { - fmt.Println("call err: ", err, rsp) - return - } - - fmt.Println("Call:", i, "rsp:", rsp.Msg) -} - -func main() { - cmd.Init() - - client.DefaultClient = client.NewClient( - client.Wrap(NewDCWrapper), - ) - - fmt.Println("\n--- Call example ---\n") - for i := 0; i < 10; i++ { - call(i) - } -} diff --git a/examples/client/dc_selector/dc_selector.go b/examples/client/dc_selector/dc_selector.go deleted file mode 100644 index 00a0cf2c..00000000 --- a/examples/client/dc_selector/dc_selector.go +++ /dev/null @@ -1,134 +0,0 @@ -package main - -import ( - "fmt" - "math/rand" - "sync" - "time" - - "github.com/micro/go-micro/client" - "github.com/micro/go-micro/cmd" - "github.com/micro/go-micro/registry" - "github.com/micro/go-micro/selector" - "golang.org/x/net/context" - - example "github.com/micro/go-micro/examples/server/proto/example" -) - -// Built in random hashed node selector -type dcSelector struct { - opts selector.Options -} - -var ( - datacenter = "local" -) - -func init() { - rand.Seed(time.Now().Unix()) -} - -func (n *dcSelector) Init(opts ...selector.Option) error { - for _, o := range opts { - o(&n.opts) - } - return nil -} - -func (n *dcSelector) Options() selector.Options { - return n.opts -} - -func (n *dcSelector) Select(service string, opts ...selector.SelectOption) (selector.Next, error) { - services, err := n.opts.Registry.GetService(service) - if err != nil { - return nil, err - } - - if len(services) == 0 { - return nil, selector.ErrNotFound - } - - var nodes []*registry.Node - - // Filter the nodes for datacenter - for _, service := range services { - for _, node := range service.Nodes { - if node.Metadata["datacenter"] == datacenter { - nodes = append(nodes, node) - } - } - } - - if len(nodes) == 0 { - return nil, selector.ErrNotFound - } - - var i int - var mtx sync.Mutex - - return func() (*registry.Node, error) { - mtx.Lock() - defer mtx.Unlock() - i++ - return nodes[i%len(nodes)], nil - }, nil -} - -func (n *dcSelector) Mark(service string, node *registry.Node, err error) { - return -} - -func (n *dcSelector) Reset(service string) { - return -} - -func (n *dcSelector) Close() error { - return nil -} - -func (n *dcSelector) String() string { - return "dc" -} - -// Return a new first node selector -func DCSelector(opts ...selector.Option) selector.Selector { - var sopts selector.Options - for _, opt := range opts { - opt(&sopts) - } - if sopts.Registry == nil { - sopts.Registry = registry.DefaultRegistry - } - return &dcSelector{sopts} -} - -func call(i int) { - // Create new request to service go.micro.srv.example, method Example.Call - req := client.NewRequest("go.micro.srv.example", "Example.Call", &example.Request{ - Name: "John", - }) - - rsp := &example.Response{} - - // Call service - if err := client.Call(context.Background(), req, rsp); err != nil { - fmt.Println("call err: ", err, rsp) - return - } - - fmt.Println("Call:", i, "rsp:", rsp.Msg) -} - -func main() { - cmd.Init() - - client.DefaultClient = client.NewClient( - client.Selector(DCSelector()), - ) - - fmt.Println("\n--- Call example ---\n") - for i := 0; i < 10; i++ { - call(i) - } -} diff --git a/examples/client/main.go b/examples/client/main.go deleted file mode 100644 index ba2704ae..00000000 --- a/examples/client/main.go +++ /dev/null @@ -1,143 +0,0 @@ -package main - -import ( - "fmt" - - "github.com/micro/go-micro/client" - "github.com/micro/go-micro/cmd" - example "github.com/micro/go-micro/examples/server/proto/example" - "github.com/micro/go-micro/metadata" - "golang.org/x/net/context" -) - -// publishes a message -func pub() { - msg := client.NewPublication("topic.go.micro.srv.example", &example.Message{ - Say: "This is a publication", - }) - - // create context with metadata - ctx := metadata.NewContext(context.Background(), map[string]string{ - "X-User-Id": "john", - "X-From-Id": "script", - }) - - // publish message - if err := client.Publish(ctx, msg); err != nil { - fmt.Println("pub err: ", err) - return - } - - fmt.Printf("Published: %v\n", msg) -} - -func call(i int) { - // Create new request to service go.micro.srv.example, method Example.Call - req := client.NewRequest("go.micro.srv.example", "Example.Call", &example.Request{ - Name: "John", - }) - - // create context with metadata - ctx := metadata.NewContext(context.Background(), map[string]string{ - "X-User-Id": "john", - "X-From-Id": "script", - }) - - rsp := &example.Response{} - - // Call service - if err := client.Call(ctx, req, rsp); err != nil { - fmt.Println("call err: ", err, rsp) - return - } - - fmt.Println("Call:", i, "rsp:", rsp.Msg) -} - -func stream(i int) { - // Create new request to service go.micro.srv.example, method Example.Call - // Request can be empty as its actually ignored and merely used to call the handler - req := client.NewRequest("go.micro.srv.example", "Example.Stream", &example.StreamingRequest{}) - - stream, err := client.Stream(context.Background(), req) - if err != nil { - fmt.Println("err:", err) - return - } - if err := stream.Send(&example.StreamingRequest{Count: int64(i)}); err != nil { - fmt.Println("err:", err) - return - } - for stream.Error() == nil { - rsp := &example.StreamingResponse{} - err := stream.Recv(rsp) - if err != nil { - fmt.Println("recv err", err) - break - } - fmt.Println("Stream: rsp:", rsp.Count) - } - - if stream.Error() != nil { - fmt.Println("stream err:", err) - return - } - - if err := stream.Close(); err != nil { - fmt.Println("stream close err:", err) - } -} - -func pingPong(i int) { - // Create new request to service go.micro.srv.example, method Example.Call - // Request can be empty as its actually ignored and merely used to call the handler - req := client.NewRequest("go.micro.srv.example", "Example.PingPong", &example.StreamingRequest{}) - - stream, err := client.Stream(context.Background(), req) - if err != nil { - fmt.Println("err:", err) - return - } - - for j := 0; j < i; j++ { - if err := stream.Send(&example.Ping{Stroke: int64(j + 1)}); err != nil { - fmt.Println("err:", err) - return - } - rsp := &example.Pong{} - err := stream.Recv(rsp) - if err != nil { - fmt.Println("recv err", err) - break - } - fmt.Printf("Sent ping %v got pong %v\n", j+1, rsp.Stroke) - } - - if stream.Error() != nil { - fmt.Println("stream err:", err) - return - } - - if err := stream.Close(); err != nil { - fmt.Println("stream close err:", err) - } -} - -func main() { - cmd.Init() - - fmt.Println("\n--- Publisher example ---\n") - pub() - - fmt.Println("\n--- Call example ---\n") - for i := 0; i < 10; i++ { - call(i) - } - - fmt.Println("\n--- Streamer example ---\n") - stream(10) - - fmt.Println("\n--- Ping Pong example ---\n") - pingPong(10) - -} diff --git a/examples/client/pub/pub.go b/examples/client/pub/pub.go deleted file mode 100644 index 83d804e5..00000000 --- a/examples/client/pub/pub.go +++ /dev/null @@ -1,40 +0,0 @@ -package main - -import ( - "fmt" - - "github.com/micro/go-micro/client" - "github.com/micro/go-micro/cmd" - example "github.com/micro/go-micro/examples/server/proto/example" - "github.com/micro/go-micro/metadata" - "golang.org/x/net/context" -) - -// publishes a message -func pub(i int) { - msg := client.NewPublication("topic.go.micro.srv.example", &example.Message{ - Say: fmt.Sprintf("This is a publication %d", i), - }) - - // create context with metadata - ctx := metadata.NewContext(context.Background(), map[string]string{ - "X-User-Id": "john", - "X-From-Id": "script", - }) - - // publish message - if err := client.Publish(ctx, msg); err != nil { - fmt.Println("pub err: ", err) - return - } - - fmt.Printf("Published %d: %v\n", i, msg) -} - -func main() { - cmd.Init() - fmt.Println("\n--- Publisher example ---\n") - for i := 0; i < 10; i++ { - pub(i) - } -} diff --git a/examples/client/selector/selector.go b/examples/client/selector/selector.go deleted file mode 100644 index 60888d54..00000000 --- a/examples/client/selector/selector.go +++ /dev/null @@ -1,124 +0,0 @@ -package main - -import ( - "fmt" - "math/rand" - "time" - - "github.com/micro/go-micro/client" - "github.com/micro/go-micro/cmd" - example "github.com/micro/go-micro/examples/server/proto/example" - "github.com/micro/go-micro/registry" - "github.com/micro/go-micro/selector" - "golang.org/x/net/context" -) - -func init() { - rand.Seed(time.Now().Unix()) -} - -// Built in random hashed node selector -type firstNodeSelector struct { - opts selector.Options -} - -func (n *firstNodeSelector) Init(opts ...selector.Option) error { - for _, o := range opts { - o(&n.opts) - } - return nil -} - -func (n *firstNodeSelector) Options() selector.Options { - return n.opts -} - -func (n *firstNodeSelector) Select(service string, opts ...selector.SelectOption) (selector.Next, error) { - services, err := n.opts.Registry.GetService(service) - if err != nil { - return nil, err - } - - if len(services) == 0 { - return nil, selector.ErrNotFound - } - - var sopts selector.SelectOptions - for _, opt := range opts { - opt(&sopts) - } - - for _, filter := range sopts.Filters { - services = filter(services) - } - - if len(services) == 0 { - return nil, selector.ErrNotFound - } - - if len(services[0].Nodes) == 0 { - return nil, selector.ErrNotFound - } - - return func() (*registry.Node, error) { - return services[0].Nodes[0], nil - }, nil -} - -func (n *firstNodeSelector) Mark(service string, node *registry.Node, err error) { - return -} - -func (n *firstNodeSelector) Reset(service string) { - return -} - -func (n *firstNodeSelector) Close() error { - return nil -} - -func (n *firstNodeSelector) String() string { - return "first" -} - -// Return a new first node selector -func FirstNodeSelector(opts ...selector.Option) selector.Selector { - var sopts selector.Options - for _, opt := range opts { - opt(&sopts) - } - if sopts.Registry == nil { - sopts.Registry = registry.DefaultRegistry - } - return &firstNodeSelector{sopts} -} - -func call(i int) { - // Create new request to service go.micro.srv.example, method Example.Call - req := client.NewRequest("go.micro.srv.example", "Example.Call", &example.Request{ - Name: "John", - }) - - rsp := &example.Response{} - - // Call service - if err := client.Call(context.Background(), req, rsp); err != nil { - fmt.Println("call err: ", err, rsp) - return - } - - fmt.Println("Call:", i, "rsp:", rsp.Msg) -} - -func main() { - cmd.Init() - - client.DefaultClient = client.NewClient( - client.Selector(FirstNodeSelector()), - ) - - fmt.Println("\n--- Call example ---\n") - for i := 0; i < 10; i++ { - call(i) - } -} diff --git a/examples/client/wrapper/wrapper.go b/examples/client/wrapper/wrapper.go deleted file mode 100644 index ba90d67e..00000000 --- a/examples/client/wrapper/wrapper.go +++ /dev/null @@ -1,109 +0,0 @@ -package main - -import ( - "fmt" - "time" - - "github.com/micro/go-micro/client" - "github.com/micro/go-micro/cmd" - example "github.com/micro/go-micro/examples/server/proto/example" - "github.com/micro/go-micro/metadata" - "golang.org/x/net/context" -) - -// wrapper example code - -// log wrapper logs every time a request is made -type logWrapper struct { - client.Client -} - -func (l *logWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error { - md, _ := metadata.FromContext(ctx) - fmt.Printf("[Log Wrapper] ctx: %v service: %s method: %s\n", md, req.Service(), req.Method()) - return l.Client.Call(ctx, req, rsp) -} - -// trace wrapper attaches a unique trace ID - timestamp -type traceWrapper struct { - client.Client -} - -func (t *traceWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error { - ctx = metadata.NewContext(ctx, map[string]string{ - "X-Trace-Id": fmt.Sprintf("%d", time.Now().Unix()), - }) - return t.Client.Call(ctx, req, rsp) -} - -// Implements client.Wrapper as logWrapper -func logWrap(c client.Client) client.Client { - return &logWrapper{c} -} - -// Implements client.Wrapper as traceWrapper -func traceWrap(c client.Client) client.Client { - return &traceWrapper{c} -} - -func metricsWrap(cf client.CallFunc) client.CallFunc { - return func(ctx context.Context, addr string, req client.Request, rsp interface{}, opts client.CallOptions) error { - t := time.Now() - err := cf(ctx, addr, req, rsp, opts) - fmt.Printf("[Metrics Wrapper] called: %s %s.%s duration: %v\n", addr, req.Service(), req.Method(), time.Since(t)) - return err - } -} - -func call(i int) { - // Create new request to service go.micro.srv.example, method Example.Call - req := client.NewRequest("go.micro.srv.example", "Example.Call", &example.Request{ - Name: "John", - }) - - // create context with metadata - ctx := metadata.NewContext(context.Background(), map[string]string{ - "X-User-Id": "john", - "X-From-Id": "script", - }) - - rsp := &example.Response{} - - // Call service - if err := client.Call(ctx, req, rsp); err != nil { - fmt.Println("call err: ", err, rsp) - return - } - - fmt.Println("Call:", i, "rsp:", rsp.Msg) -} - -func main() { - cmd.Init() - - fmt.Println("\n--- Log Wrapper example ---\n") - - // Wrap the default client - client.DefaultClient = logWrap(client.DefaultClient) - - call(0) - - fmt.Println("\n--- Log+Trace Wrapper example ---\n") - - // Wrap using client.Wrap option - client.DefaultClient = client.NewClient( - client.Wrap(traceWrap), - client.Wrap(logWrap), - ) - - call(1) - - fmt.Println("\n--- Metrics Wrapper example ---\n") - - // Wrap using client.Wrap option - client.DefaultClient = client.NewClient( - client.WrapCall(metricsWrap), - ) - - call(2) -} diff --git a/examples/pubsub/consumer/consumer.go b/examples/pubsub/consumer/consumer.go deleted file mode 100644 index 465a4736..00000000 --- a/examples/pubsub/consumer/consumer.go +++ /dev/null @@ -1,51 +0,0 @@ -package main - -import ( - "fmt" - "log" - - "github.com/micro/go-micro/broker" - "github.com/micro/go-micro/cmd" - // To enable rabbitmq plugin uncomment - //_ "github.com/micro/go-plugins/broker/rabbitmq" -) - -var ( - topic = "go.micro.topic.foo" -) - -// Example of a shared subscription which receives a subset of messages -func sharedSub() { - _, err := broker.Subscribe(topic, func(p broker.Publication) error { - fmt.Println("[sub] received message:", string(p.Message().Body), "header", p.Message().Header) - return nil - }, broker.Queue("consumer")) - if err != nil { - fmt.Println(err) - } -} - -// Example of a subscription which receives all the messages -func sub() { - _, err := broker.Subscribe(topic, func(p broker.Publication) error { - fmt.Println("[sub] received message:", string(p.Message().Body), "header", p.Message().Header) - return nil - }) - if err != nil { - fmt.Println(err) - } -} - -func main() { - cmd.Init() - - if err := broker.Init(); err != nil { - log.Fatalf("Broker Init error: %v", err) - } - if err := broker.Connect(); err != nil { - log.Fatalf("Broker Connect error: %v", err) - } - - sub() - select {} -} diff --git a/examples/pubsub/main.go b/examples/pubsub/main.go deleted file mode 100644 index a1ff6014..00000000 --- a/examples/pubsub/main.go +++ /dev/null @@ -1,59 +0,0 @@ -package main - -import ( - "fmt" - "log" - "time" - - "github.com/micro/go-micro/broker" - "github.com/micro/go-micro/cmd" -) - -var ( - topic = "go.micro.topic.foo" -) - -func pub() { - tick := time.NewTicker(time.Second) - i := 0 - for _ = range tick.C { - msg := &broker.Message{ - Header: map[string]string{ - "id": fmt.Sprintf("%d", i), - }, - Body: []byte(fmt.Sprintf("%d: %s", i, time.Now().String())), - } - if err := broker.Publish(topic, msg); err != nil { - log.Printf("[pub] failed: %v", err) - } else { - fmt.Println("[pub] pubbed message:", string(msg.Body)) - } - i++ - } -} - -func sub() { - _, err := broker.Subscribe(topic, func(p broker.Publication) error { - fmt.Println("[sub] received message:", string(p.Message().Body), "header", p.Message().Header) - return nil - }) - if err != nil { - fmt.Println(err) - } -} - -func main() { - cmd.Init() - - if err := broker.Init(); err != nil { - log.Fatalf("Broker Init error: %v", err) - } - if err := broker.Connect(); err != nil { - log.Fatalf("Broker Connect error: %v", err) - } - - go pub() - go sub() - - <-time.After(time.Second * 10) -} diff --git a/examples/pubsub/producer/producer.go b/examples/pubsub/producer/producer.go deleted file mode 100644 index ac724dcc..00000000 --- a/examples/pubsub/producer/producer.go +++ /dev/null @@ -1,49 +0,0 @@ -package main - -import ( - "fmt" - "log" - "time" - - "github.com/micro/go-micro/broker" - "github.com/micro/go-micro/cmd" - // To enable rabbitmq plugin uncomment - //_ "github.com/micro/go-plugins/broker/rabbitmq" -) - -var ( - topic = "go.micro.topic.foo" -) - -func pub() { - tick := time.NewTicker(time.Second) - i := 0 - for _ = range tick.C { - msg := &broker.Message{ - Header: map[string]string{ - "id": fmt.Sprintf("%d", i), - }, - Body: []byte(fmt.Sprintf("%d: %s", i, time.Now().String())), - } - if err := broker.Publish(topic, msg); err != nil { - log.Printf("[pub] failed: %v", err) - } else { - fmt.Println("[pub] pubbed message:", string(msg.Body)) - } - i++ - } -} - -func main() { - cmd.Init() - - if err := broker.Init(); err != nil { - log.Fatalf("Broker Init error: %v", err) - } - - if err := broker.Connect(); err != nil { - log.Fatalf("Broker Connect error: %v", err) - } - - pub() -} diff --git a/examples/server/Dockerfile b/examples/server/Dockerfile deleted file mode 100644 index c24b628a..00000000 --- a/examples/server/Dockerfile +++ /dev/null @@ -1,5 +0,0 @@ -# Build binary with the following command -# CGO_ENABLED=0 GOOS=linux go build -a -installsuffix cgo -ldflags '-w' -o server ./main.go -FROM alpine:3.2 -ADD server / -ENTRYPOINT [ "/server" ] diff --git a/examples/server/README.md b/examples/server/README.md deleted file mode 100644 index 366f546f..00000000 --- a/examples/server/README.md +++ /dev/null @@ -1,27 +0,0 @@ -# Example Service - -An example Go service running with go-micro - -### Prerequisites - -Install Consul -[https://www.consul.io/intro/getting-started/install.html](https://www.consul.io/intro/getting-started/install.html) - -Run Consul -``` -$ consul agent -dev -advertise=127.0.0.1 -``` - -Run Service -``` -$ go run server/main.go -I0525 18:06:14.471489 83304 server.go:117] Starting server go.micro.srv.example id go.micro.srv.example-59b6e0ab-0300-11e5-b696-68a86d0d36b6 -I0525 18:06:14.474960 83304 rpc_server.go:126] Listening on [::]:62216 -I0525 18:06:14.474997 83304 server.go:99] Registering node: go.micro.srv.example-59b6e0ab-0300-11e5-b696-68a86d0d36b6 -``` - -Test Service -``` -$ go run client/main.go -go.micro.srv.example-59b6e0ab-0300-11e5-b696-68a86d0d36b6: Hello John -``` diff --git a/examples/server/codegen/codegen.go b/examples/server/codegen/codegen.go deleted file mode 100644 index d7ac9ee1..00000000 --- a/examples/server/codegen/codegen.go +++ /dev/null @@ -1,83 +0,0 @@ -package main - -import ( - "log" - - "github.com/micro/go-micro/cmd" - "github.com/micro/go-micro/examples/server/subscriber" - "github.com/micro/go-micro/server" - "golang.org/x/net/context" - - example "github.com/micro/go-micro/examples/server/proto/example" -) - -type Example struct{} - -func (e *Example) Call(ctx context.Context, req *example.Request, rsp *example.Response) error { - log.Print("Received Example.Call request") - rsp.Msg = server.DefaultOptions().Id + ": Hello " + req.Name - return nil -} - -func (e *Example) Stream(ctx context.Context, req *example.StreamingRequest, stream example.Example_StreamStream) error { - log.Printf("Received Example.Stream request with count: %d", req.Count) - - for i := 0; i < int(req.Count); i++ { - log.Printf("Responding: %d", i) - if err := stream.Send(&example.StreamingResponse{ - Count: int64(i), - }); err != nil { - return err - } - } - - return nil -} - -func (e *Example) PingPong(ctx context.Context, stream example.Example_PingPongStream) error { - for { - req, err := stream.Recv() - if err != nil { - return err - } - log.Printf("Got ping %v", req.Stroke) - if err := stream.Send(&example.Pong{Stroke: req.Stroke}); err != nil { - return err - } - } -} - -func main() { - // optionally setup command line usage - cmd.Init() - - // Initialise Server - server.Init( - server.Name("go.micro.srv.example"), - ) - - // Register Subscribers - server.Subscribe( - server.NewSubscriber( - "topic.go.micro.srv.example", - new(subscriber.Example), - ), - ) - - server.Subscribe( - server.NewSubscriber( - "topic.go.micro.srv.example", - subscriber.Handler, - ), - ) - - // Register Handler - example.RegisterExampleHandler( - server.DefaultServer, new(Example), - ) - - // Run server - if err := server.Run(); err != nil { - log.Fatal(err) - } -} diff --git a/examples/server/handler/example.go b/examples/server/handler/example.go deleted file mode 100644 index 1423f1fd..00000000 --- a/examples/server/handler/example.go +++ /dev/null @@ -1,58 +0,0 @@ -package handler - -import ( - "log" - - example "github.com/micro/go-micro/examples/server/proto/example" - "github.com/micro/go-micro/metadata" - "github.com/micro/go-micro/server" - - "golang.org/x/net/context" -) - -type Example struct{} - -func (e *Example) Call(ctx context.Context, req *example.Request, rsp *example.Response) error { - md, _ := metadata.FromContext(ctx) - log.Printf("Received Example.Call request with metadata: %v", md) - rsp.Msg = server.DefaultOptions().Id + ": Hello " + req.Name - return nil -} - -func (e *Example) Stream(ctx context.Context, stream server.Streamer) error { - log.Print("Executing streaming handler") - req := &example.StreamingRequest{} - - // We just want to receive 1 request and then process here - if err := stream.Recv(req); err != nil { - log.Printf("Error receiving streaming request: %v", err) - return err - } - - log.Printf("Received Example.Stream request with count: %d", req.Count) - - for i := 0; i < int(req.Count); i++ { - log.Printf("Responding: %d", i) - - if err := stream.Send(&example.StreamingResponse{ - Count: int64(i), - }); err != nil { - return err - } - } - - return nil -} - -func (e *Example) PingPong(ctx context.Context, stream server.Streamer) error { - for { - req := &example.Ping{} - if err := stream.Recv(req); err != nil { - return err - } - log.Printf("Got ping %v", req.Stroke) - if err := stream.Send(&example.Pong{Stroke: req.Stroke}); err != nil { - return err - } - } -} diff --git a/examples/server/main.go b/examples/server/main.go deleted file mode 100644 index 52da2298..00000000 --- a/examples/server/main.go +++ /dev/null @@ -1,51 +0,0 @@ -package main - -import ( - "log" - - "github.com/micro/go-micro/cmd" - "github.com/micro/go-micro/examples/server/handler" - "github.com/micro/go-micro/examples/server/subscriber" - "github.com/micro/go-micro/server" -) - -func main() { - // optionally setup command line usage - cmd.Init() - - // Initialise Server - server.Init( - server.Name("go.micro.srv.example"), - ) - - // Register Handlers - server.Handle( - server.NewHandler( - new(handler.Example), - ), - ) - - // Register Subscribers - if err := server.Subscribe( - server.NewSubscriber( - "topic.go.micro.srv.example", - new(subscriber.Example), - ), - ); err != nil { - log.Fatal(err) - } - - if err := server.Subscribe( - server.NewSubscriber( - "topic.go.micro.srv.example", - subscriber.Handler, - ), - ); err != nil { - log.Fatal(err) - } - - // Run server - if err := server.Run(); err != nil { - log.Fatal(err) - } -} diff --git a/examples/server/proto/example/example.pb.go b/examples/server/proto/example/example.pb.go deleted file mode 100644 index 238ac678..00000000 --- a/examples/server/proto/example/example.pb.go +++ /dev/null @@ -1,355 +0,0 @@ -// Code generated by protoc-gen-go. -// source: go-micro/examples/server/proto/example/example.proto -// DO NOT EDIT! - -/* -Package go_micro_srv_example is a generated protocol buffer package. - -It is generated from these files: - go-micro/examples/server/proto/example/example.proto - -It has these top-level messages: - Message - Request - Response - StreamingRequest - StreamingResponse - Ping - Pong -*/ -package go_micro_srv_example - -import proto "github.com/golang/protobuf/proto" -import fmt "fmt" -import math "math" - -import ( - client "github.com/micro/go-micro/client" - server "github.com/micro/go-micro/server" - context "golang.org/x/net/context" -) - -// Reference imports to suppress errors if they are not otherwise used. -var _ = proto.Marshal -var _ = fmt.Errorf -var _ = math.Inf - -type Message struct { - Say string `protobuf:"bytes,1,opt,name=say" json:"say,omitempty"` -} - -func (m *Message) Reset() { *m = Message{} } -func (m *Message) String() string { return proto.CompactTextString(m) } -func (*Message) ProtoMessage() {} -func (*Message) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} } - -type Request struct { - Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"` -} - -func (m *Request) Reset() { *m = Request{} } -func (m *Request) String() string { return proto.CompactTextString(m) } -func (*Request) ProtoMessage() {} -func (*Request) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} } - -type Response struct { - Msg string `protobuf:"bytes,1,opt,name=msg" json:"msg,omitempty"` -} - -func (m *Response) Reset() { *m = Response{} } -func (m *Response) String() string { return proto.CompactTextString(m) } -func (*Response) ProtoMessage() {} -func (*Response) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{2} } - -type StreamingRequest struct { - Count int64 `protobuf:"varint,1,opt,name=count" json:"count,omitempty"` -} - -func (m *StreamingRequest) Reset() { *m = StreamingRequest{} } -func (m *StreamingRequest) String() string { return proto.CompactTextString(m) } -func (*StreamingRequest) ProtoMessage() {} -func (*StreamingRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{3} } - -type StreamingResponse struct { - Count int64 `protobuf:"varint,1,opt,name=count" json:"count,omitempty"` -} - -func (m *StreamingResponse) Reset() { *m = StreamingResponse{} } -func (m *StreamingResponse) String() string { return proto.CompactTextString(m) } -func (*StreamingResponse) ProtoMessage() {} -func (*StreamingResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{4} } - -type Ping struct { - Stroke int64 `protobuf:"varint,1,opt,name=stroke" json:"stroke,omitempty"` -} - -func (m *Ping) Reset() { *m = Ping{} } -func (m *Ping) String() string { return proto.CompactTextString(m) } -func (*Ping) ProtoMessage() {} -func (*Ping) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{5} } - -type Pong struct { - Stroke int64 `protobuf:"varint,1,opt,name=stroke" json:"stroke,omitempty"` -} - -func (m *Pong) Reset() { *m = Pong{} } -func (m *Pong) String() string { return proto.CompactTextString(m) } -func (*Pong) ProtoMessage() {} -func (*Pong) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{6} } - -func init() { - proto.RegisterType((*Message)(nil), "go.micro.srv.example.Message") - proto.RegisterType((*Request)(nil), "go.micro.srv.example.Request") - proto.RegisterType((*Response)(nil), "go.micro.srv.example.Response") - proto.RegisterType((*StreamingRequest)(nil), "go.micro.srv.example.StreamingRequest") - proto.RegisterType((*StreamingResponse)(nil), "go.micro.srv.example.StreamingResponse") - proto.RegisterType((*Ping)(nil), "go.micro.srv.example.Ping") - proto.RegisterType((*Pong)(nil), "go.micro.srv.example.Pong") -} - -// Reference imports to suppress errors if they are not otherwise used. -var _ context.Context -var _ client.Option -var _ server.Option - -// Client API for Example service - -type ExampleClient interface { - Call(ctx context.Context, in *Request, opts ...client.CallOption) (*Response, error) - Stream(ctx context.Context, in *StreamingRequest, opts ...client.CallOption) (Example_StreamClient, error) - PingPong(ctx context.Context, opts ...client.CallOption) (Example_PingPongClient, error) -} - -type exampleClient struct { - c client.Client - serviceName string -} - -func NewExampleClient(serviceName string, c client.Client) ExampleClient { - if c == nil { - c = client.NewClient() - } - if len(serviceName) == 0 { - serviceName = "go.micro.srv.example" - } - return &exampleClient{ - c: c, - serviceName: serviceName, - } -} - -func (c *exampleClient) Call(ctx context.Context, in *Request, opts ...client.CallOption) (*Response, error) { - req := c.c.NewRequest(c.serviceName, "Example.Call", in) - out := new(Response) - err := c.c.Call(ctx, req, out, opts...) - if err != nil { - return nil, err - } - return out, nil -} - -func (c *exampleClient) Stream(ctx context.Context, in *StreamingRequest, opts ...client.CallOption) (Example_StreamClient, error) { - req := c.c.NewRequest(c.serviceName, "Example.Stream", &StreamingRequest{}) - stream, err := c.c.Stream(ctx, req, opts...) - if err != nil { - return nil, err - } - if err := stream.Send(in); err != nil { - return nil, err - } - return &exampleStreamClient{stream}, nil -} - -type Example_StreamClient interface { - SendMsg(interface{}) error - RecvMsg(interface{}) error - Close() error - Recv() (*StreamingResponse, error) -} - -type exampleStreamClient struct { - stream client.Streamer -} - -func (x *exampleStreamClient) Close() error { - return x.stream.Close() -} - -func (x *exampleStreamClient) SendMsg(m interface{}) error { - return x.stream.Send(m) -} - -func (x *exampleStreamClient) RecvMsg(m interface{}) error { - return x.stream.Recv(m) -} - -func (x *exampleStreamClient) Recv() (*StreamingResponse, error) { - m := new(StreamingResponse) - err := x.stream.Recv(m) - if err != nil { - return nil, err - } - return m, nil -} - -func (c *exampleClient) PingPong(ctx context.Context, opts ...client.CallOption) (Example_PingPongClient, error) { - req := c.c.NewRequest(c.serviceName, "Example.PingPong", &Ping{}) - stream, err := c.c.Stream(ctx, req, opts...) - if err != nil { - return nil, err - } - return &examplePingPongClient{stream}, nil -} - -type Example_PingPongClient interface { - SendMsg(interface{}) error - RecvMsg(interface{}) error - Close() error - Send(*Ping) error - Recv() (*Pong, error) -} - -type examplePingPongClient struct { - stream client.Streamer -} - -func (x *examplePingPongClient) Close() error { - return x.stream.Close() -} - -func (x *examplePingPongClient) SendMsg(m interface{}) error { - return x.stream.Send(m) -} - -func (x *examplePingPongClient) RecvMsg(m interface{}) error { - return x.stream.Recv(m) -} - -func (x *examplePingPongClient) Send(m *Ping) error { - return x.stream.Send(m) -} - -func (x *examplePingPongClient) Recv() (*Pong, error) { - m := new(Pong) - err := x.stream.Recv(m) - if err != nil { - return nil, err - } - return m, nil -} - -// Server API for Example service - -type ExampleHandler interface { - Call(context.Context, *Request, *Response) error - Stream(context.Context, *StreamingRequest, Example_StreamStream) error - PingPong(context.Context, Example_PingPongStream) error -} - -func RegisterExampleHandler(s server.Server, hdlr ExampleHandler) { - s.Handle(s.NewHandler(&Example{hdlr})) -} - -type Example struct { - ExampleHandler -} - -func (h *Example) Call(ctx context.Context, in *Request, out *Response) error { - return h.ExampleHandler.Call(ctx, in, out) -} - -func (h *Example) Stream(ctx context.Context, stream server.Streamer) error { - m := new(StreamingRequest) - if err := stream.Recv(m); err != nil { - return err - } - return h.ExampleHandler.Stream(ctx, m, &exampleStreamStream{stream}) -} - -type Example_StreamStream interface { - SendMsg(interface{}) error - RecvMsg(interface{}) error - Close() error - Send(*StreamingResponse) error -} - -type exampleStreamStream struct { - stream server.Streamer -} - -func (x *exampleStreamStream) Close() error { - return x.stream.Close() -} - -func (x *exampleStreamStream) SendMsg(m interface{}) error { - return x.stream.Send(m) -} - -func (x *exampleStreamStream) RecvMsg(m interface{}) error { - return x.stream.Recv(m) -} - -func (x *exampleStreamStream) Send(m *StreamingResponse) error { - return x.stream.Send(m) -} - -func (h *Example) PingPong(ctx context.Context, stream server.Streamer) error { - return h.ExampleHandler.PingPong(ctx, &examplePingPongStream{stream}) -} - -type Example_PingPongStream interface { - SendMsg(interface{}) error - RecvMsg(interface{}) error - Close() error - Send(*Pong) error - Recv() (*Ping, error) -} - -type examplePingPongStream struct { - stream server.Streamer -} - -func (x *examplePingPongStream) Close() error { - return x.stream.Close() -} - -func (x *examplePingPongStream) SendMsg(m interface{}) error { - return x.stream.Send(m) -} - -func (x *examplePingPongStream) RecvMsg(m interface{}) error { - return x.stream.Recv(m) -} - -func (x *examplePingPongStream) Send(m *Pong) error { - return x.stream.Send(m) -} - -func (x *examplePingPongStream) Recv() (*Ping, error) { - m := new(Ping) - if err := x.stream.Recv(m); err != nil { - return nil, err - } - return m, nil -} - -var fileDescriptor0 = []byte{ - // 270 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0x84, 0x91, 0x5f, 0x4b, 0xc3, 0x30, - 0x14, 0xc5, 0x17, 0x56, 0xdb, 0x79, 0xfd, 0x83, 0x06, 0x99, 0x52, 0x50, 0x34, 0x0f, 0xba, 0x17, - 0xd3, 0xa1, 0x7e, 0x03, 0x11, 0x7d, 0x11, 0x64, 0x3e, 0xfb, 0x10, 0xc7, 0x25, 0x0c, 0x9b, 0xa6, - 0xe6, 0x66, 0x43, 0x3f, 0xbb, 0x2f, 0x6e, 0x69, 0x3b, 0xc6, 0xec, 0xf0, 0x29, 0x70, 0x7e, 0xe7, - 0x5c, 0xce, 0x21, 0x70, 0xa7, 0xed, 0xb5, 0x99, 0x8c, 0x9d, 0xcd, 0xf0, 0x4b, 0x99, 0x32, 0x47, - 0xca, 0x08, 0xdd, 0x0c, 0x5d, 0x56, 0x3a, 0xeb, 0x97, 0x6a, 0xf3, 0xca, 0xa0, 0xf2, 0x23, 0x6d, - 0x65, 0x48, 0x49, 0x72, 0x33, 0x59, 0x33, 0xd1, 0x87, 0xe4, 0x19, 0x89, 0x94, 0x46, 0xbe, 0x03, - 0x5d, 0x52, 0xdf, 0x27, 0xec, 0x9c, 0x0d, 0xb6, 0xc5, 0x31, 0x24, 0x23, 0xfc, 0x9c, 0x22, 0x79, - 0xbe, 0x0b, 0x51, 0xa1, 0x0c, 0x2e, 0x41, 0x6f, 0x84, 0x54, 0xda, 0x82, 0x42, 0xc2, 0x90, 0xae, - 0xc1, 0x05, 0x1c, 0xbc, 0x7a, 0x87, 0xca, 0x4c, 0x0a, 0xdd, 0x44, 0xf7, 0x60, 0x6b, 0x6c, 0xa7, - 0x85, 0x0f, 0x96, 0xae, 0x10, 0x70, 0xb8, 0x62, 0xa9, 0x8f, 0xac, 0x79, 0xfa, 0x10, 0xbd, 0xcc, - 0x31, 0xdf, 0x87, 0x98, 0xbc, 0xb3, 0x1f, 0xb8, 0xa2, 0xdb, 0xbf, 0xfa, 0xcd, 0x0f, 0x83, 0xe4, - 0xa1, 0x1a, 0xc3, 0x1f, 0x21, 0xba, 0x57, 0x79, 0xce, 0x4f, 0x65, 0xdb, 0x56, 0x59, 0xb7, 0x4a, - 0xcf, 0x36, 0xe1, 0xaa, 0x91, 0xe8, 0xf0, 0x37, 0x88, 0xab, 0xa2, 0xfc, 0xb2, 0xdd, 0xbb, 0xbe, - 0x34, 0xbd, 0xfa, 0xd7, 0xd7, 0x1c, 0x1f, 0x32, 0xfe, 0x04, 0xbd, 0xc5, 0xc6, 0xb0, 0x27, 0x6d, - 0x0f, 0x2e, 0x78, 0xba, 0x89, 0xcd, 0x73, 0xa2, 0x33, 0x60, 0x43, 0xf6, 0x1e, 0x87, 0xbf, 0xbd, - 0xfd, 0x0d, 0x00, 0x00, 0xff, 0xff, 0x53, 0xb5, 0xeb, 0x31, 0x13, 0x02, 0x00, 0x00, -} diff --git a/examples/server/proto/example/example.proto b/examples/server/proto/example/example.proto deleted file mode 100644 index 48c687e4..00000000 --- a/examples/server/proto/example/example.proto +++ /dev/null @@ -1,37 +0,0 @@ -syntax = "proto3"; - -package go.micro.srv.example; - -service Example { - rpc Call(Request) returns (Response) {} - rpc Stream(StreamingRequest) returns (stream StreamingResponse) {} - rpc PingPong(stream Ping) returns (stream Pong) {} -} - -message Message { - string say = 1; -} - -message Request { - string name = 1; -} - -message Response { - string msg = 1; -} - -message StreamingRequest { - int64 count = 1; -} - -message StreamingResponse { - int64 count = 1; -} - -message Ping { - int64 stroke = 1; -} - -message Pong { - int64 stroke = 1; -} diff --git a/examples/server/subscriber/subscriber.go b/examples/server/subscriber/subscriber.go deleted file mode 100644 index 82268ac9..00000000 --- a/examples/server/subscriber/subscriber.go +++ /dev/null @@ -1,20 +0,0 @@ -package subscriber - -import ( - "log" - - example "github.com/micro/go-micro/examples/server/proto/example" - "golang.org/x/net/context" -) - -type Example struct{} - -func (e *Example) Handle(ctx context.Context, msg *example.Message) error { - log.Print("Handler Received message: ", msg.Say) - return nil -} - -func Handler(ctx context.Context, msg *example.Message) error { - log.Print("Function Received message: ", msg.Say) - return nil -} diff --git a/examples/server/wrapper/main.go b/examples/server/wrapper/main.go deleted file mode 100644 index 8463af54..00000000 --- a/examples/server/wrapper/main.go +++ /dev/null @@ -1,79 +0,0 @@ -package main - -import ( - "log" - - "github.com/micro/go-micro/cmd" - "github.com/micro/go-micro/examples/server/handler" - "github.com/micro/go-micro/examples/server/subscriber" - "github.com/micro/go-micro/server" - "golang.org/x/net/context" -) - -func logWrapper(fn server.HandlerFunc) server.HandlerFunc { - return func(ctx context.Context, req server.Request, rsp interface{}) error { - log.Printf("[Log Wrapper] Before serving request method: %v", req.Method()) - err := fn(ctx, req, rsp) - log.Printf("[Log Wrapper] After serving request") - return err - } -} - -func logSubWrapper(fn server.SubscriberFunc) server.SubscriberFunc { - return func(ctx context.Context, req server.Publication) error { - log.Printf("[Log Sub Wrapper] Before serving publication topic: %v", req.Topic()) - err := fn(ctx, req) - log.Printf("[Log Sub Wrapper] After serving publication") - return err - } -} - -func main() { - // optionally setup command line usage - cmd.Init() - - md := server.DefaultOptions().Metadata - md["datacenter"] = "local" - - server.DefaultServer = server.NewServer( - server.WrapHandler(logWrapper), - server.WrapSubscriber(logSubWrapper), - server.Metadata(md), - ) - - // Initialise Server - server.Init( - server.Name("go.micro.srv.example"), - ) - - // Register Handlers - server.Handle( - server.NewHandler( - new(handler.Example), - ), - ) - - // Register Subscribers - if err := server.Subscribe( - server.NewSubscriber( - "topic.go.micro.srv.example", - new(subscriber.Example), - ), - ); err != nil { - log.Fatal(err) - } - - if err := server.Subscribe( - server.NewSubscriber( - "topic.go.micro.srv.example", - subscriber.Handler, - ), - ); err != nil { - log.Fatal(err) - } - - // Run server - if err := server.Run(); err != nil { - log.Fatal(err) - } -} diff --git a/examples/service/README.md b/examples/service/README.md deleted file mode 100644 index 563a8233..00000000 --- a/examples/service/README.md +++ /dev/null @@ -1,37 +0,0 @@ -# Service - -This is an example of creating a micro service. - -## Prereqs - -Micro services need a discovery system so they can find each other. Micro uses consul by default but -its easily swapped out with etcd, kubernetes, or various other systems. We'll run consul for convenience. - -Install consul -```shell -brew install consul -``` - -Alternative instructions - [https://www.consul.io/intro/getting-started/install.html](https://www.consul.io/intro/getting-started/install.html) - -Run Consul - -```shell -consul agent -dev -advertise=127.0.0.1 -``` - -## Run the example - -Run the service - -```shell -go run main.go -``` - -Run the client - -```shell -go run main.go --run_client -``` - -And that's all there is to it. diff --git a/examples/service/main.go b/examples/service/main.go deleted file mode 100644 index db953002..00000000 --- a/examples/service/main.go +++ /dev/null @@ -1,86 +0,0 @@ -package main - -import ( - "fmt" - "os" - - "github.com/micro/cli" - "github.com/micro/go-micro" - proto "github.com/micro/go-micro/examples/service/proto" - "golang.org/x/net/context" -) - -/* - -Example usage of top level service initialisation - -*/ - -type Greeter struct{} - -func (g *Greeter) Hello(ctx context.Context, req *proto.HelloRequest, rsp *proto.HelloResponse) error { - rsp.Greeting = "Hello " + req.Name - return nil -} - -// Setup and the client -func runClient(service micro.Service) { - // Create new greeter client - greeter := proto.NewGreeterClient("greeter", service.Client()) - - // Call the greeter - rsp, err := greeter.Hello(context.TODO(), &proto.HelloRequest{Name: "John"}) - if err != nil { - fmt.Println(err) - return - } - - // Print response - fmt.Println(rsp.Greeting) -} - -func main() { - // Create a new service. Optionally include some options here. - service := micro.NewService( - micro.Name("greeter"), - micro.Version("latest"), - micro.Metadata(map[string]string{ - "type": "helloworld", - }), - - // Setup some flags. Specify --run_client to run the client - - // Add runtime flags - // We could do this below too - micro.Flags(cli.BoolFlag{ - Name: "run_client", - Usage: "Launch the client", - }), - ) - - // Init will parse the command line flags. Any flags set will - // override the above settings. Options defined here will - // override anything set on the command line. - service.Init( - // Add runtime action - // We could actually do this above - micro.Action(func(c *cli.Context) { - if c.Bool("run_client") { - runClient(service) - os.Exit(0) - } - }), - ) - - // By default we'll run the server unless the flags catch us - - // Setup the server - - // Register handler - proto.RegisterGreeterHandler(service.Server(), new(Greeter)) - - // Run the server - if err := service.Run(); err != nil { - fmt.Println(err) - } -} diff --git a/examples/service/proto/greeter.pb.go b/examples/service/proto/greeter.pb.go deleted file mode 100644 index 20fd7cf1..00000000 --- a/examples/service/proto/greeter.pb.go +++ /dev/null @@ -1,124 +0,0 @@ -// Code generated by protoc-gen-go. -// source: go-micro/examples/service/proto/greeter.proto -// DO NOT EDIT! - -/* -Package greeter is a generated protocol buffer package. - -It is generated from these files: - go-micro/examples/service/proto/greeter.proto - -It has these top-level messages: - HelloRequest - HelloResponse -*/ -package greeter - -import proto "github.com/golang/protobuf/proto" -import fmt "fmt" -import math "math" - -import ( - client "github.com/micro/go-micro/client" - server "github.com/micro/go-micro/server" - context "golang.org/x/net/context" -) - -// Reference imports to suppress errors if they are not otherwise used. -var _ = proto.Marshal -var _ = fmt.Errorf -var _ = math.Inf - -type HelloRequest struct { - Name string `protobuf:"bytes,1,opt,name=name" json:"name,omitempty"` -} - -func (m *HelloRequest) Reset() { *m = HelloRequest{} } -func (m *HelloRequest) String() string { return proto.CompactTextString(m) } -func (*HelloRequest) ProtoMessage() {} -func (*HelloRequest) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{0} } - -type HelloResponse struct { - Greeting string `protobuf:"bytes,2,opt,name=greeting" json:"greeting,omitempty"` -} - -func (m *HelloResponse) Reset() { *m = HelloResponse{} } -func (m *HelloResponse) String() string { return proto.CompactTextString(m) } -func (*HelloResponse) ProtoMessage() {} -func (*HelloResponse) Descriptor() ([]byte, []int) { return fileDescriptor0, []int{1} } - -func init() { - proto.RegisterType((*HelloRequest)(nil), "HelloRequest") - proto.RegisterType((*HelloResponse)(nil), "HelloResponse") -} - -// Reference imports to suppress errors if they are not otherwise used. -var _ context.Context -var _ client.Option -var _ server.Option - -// Client API for Greeter service - -type GreeterClient interface { - Hello(ctx context.Context, in *HelloRequest, opts ...client.CallOption) (*HelloResponse, error) -} - -type greeterClient struct { - c client.Client - serviceName string -} - -func NewGreeterClient(serviceName string, c client.Client) GreeterClient { - if c == nil { - c = client.NewClient() - } - if len(serviceName) == 0 { - serviceName = "greeter" - } - return &greeterClient{ - c: c, - serviceName: serviceName, - } -} - -func (c *greeterClient) Hello(ctx context.Context, in *HelloRequest, opts ...client.CallOption) (*HelloResponse, error) { - req := c.c.NewRequest(c.serviceName, "Greeter.Hello", in) - out := new(HelloResponse) - err := c.c.Call(ctx, req, out, opts...) - if err != nil { - return nil, err - } - return out, nil -} - -// Server API for Greeter service - -type GreeterHandler interface { - Hello(context.Context, *HelloRequest, *HelloResponse) error -} - -func RegisterGreeterHandler(s server.Server, hdlr GreeterHandler) { - s.Handle(s.NewHandler(&Greeter{hdlr})) -} - -type Greeter struct { - GreeterHandler -} - -func (h *Greeter) Hello(ctx context.Context, in *HelloRequest, out *HelloResponse) error { - return h.GreeterHandler.Hello(ctx, in, out) -} - -var fileDescriptor0 = []byte{ - // 153 bytes of a gzipped FileDescriptorProto - 0x1f, 0x8b, 0x08, 0x00, 0x00, 0x09, 0x6e, 0x88, 0x02, 0xff, 0xe2, 0xd2, 0x4d, 0xcf, 0xd7, 0xcd, - 0xcd, 0x4c, 0x2e, 0xca, 0xd7, 0x4f, 0xad, 0x48, 0xcc, 0x2d, 0xc8, 0x49, 0x2d, 0xd6, 0x2f, 0x4e, - 0x2d, 0x2a, 0xcb, 0x4c, 0x4e, 0xd5, 0x2f, 0x28, 0xca, 0x2f, 0xc9, 0xd7, 0x4f, 0x2f, 0x4a, 0x4d, - 0x2d, 0x49, 0x2d, 0xd2, 0x03, 0xf3, 0x94, 0x64, 0xb8, 0x78, 0x3c, 0x52, 0x73, 0x72, 0xf2, 0x83, - 0x52, 0x0b, 0x4b, 0x53, 0x8b, 0x4b, 0x84, 0x78, 0xb8, 0x58, 0xf2, 0x12, 0x73, 0x53, 0x25, 0x18, - 0x15, 0x18, 0x35, 0x38, 0x95, 0x14, 0xb9, 0x78, 0xa1, 0xb2, 0xc5, 0x05, 0xf9, 0x79, 0xc5, 0xa9, - 0x42, 0x02, 0x5c, 0x1c, 0x60, 0xfd, 0x99, 0x79, 0xe9, 0x12, 0x4c, 0x20, 0x25, 0x46, 0xc6, 0x5c, - 0xec, 0xee, 0x10, 0x13, 0x85, 0x34, 0xb8, 0x58, 0xc1, 0xaa, 0x85, 0x78, 0xf5, 0x90, 0xcd, 0x94, - 0xe2, 0xd3, 0x43, 0x31, 0x44, 0x89, 0x21, 0x89, 0x0d, 0x6c, 0xb9, 0x31, 0x20, 0x00, 0x00, 0xff, - 0xff, 0x0f, 0xa9, 0x59, 0xb3, 0xad, 0x00, 0x00, 0x00, -} diff --git a/examples/service/proto/greeter.proto b/examples/service/proto/greeter.proto deleted file mode 100644 index 4ff347af..00000000 --- a/examples/service/proto/greeter.proto +++ /dev/null @@ -1,13 +0,0 @@ -syntax = "proto3"; - -service Greeter { - rpc Hello(HelloRequest) returns (HelloResponse) {} -} - -message HelloRequest { - string name = 1; -} - -message HelloResponse { - string greeting = 2; -} diff --git a/examples/service/wrapper/README.md b/examples/service/wrapper/README.md deleted file mode 100644 index 049e7221..00000000 --- a/examples/service/wrapper/README.md +++ /dev/null @@ -1,3 +0,0 @@ -# Client/Server Wrapper - -This is an example using wrappers or middleware diff --git a/examples/service/wrapper/main.go b/examples/service/wrapper/main.go deleted file mode 100644 index 0da610c6..00000000 --- a/examples/service/wrapper/main.go +++ /dev/null @@ -1,116 +0,0 @@ -package main - -import ( - "fmt" - "os" - - "github.com/micro/cli" - "github.com/micro/go-micro" - "github.com/micro/go-micro/client" - proto "github.com/micro/go-micro/examples/service/proto" - "github.com/micro/go-micro/metadata" - "github.com/micro/go-micro/server" - "golang.org/x/net/context" -) - -/* - -Example usage of top level service initialisation including wrappers - -*/ - -type logWrapper struct { - client.Client -} - -func (l *logWrapper) Call(ctx context.Context, req client.Request, rsp interface{}, opts ...client.CallOption) error { - md, _ := metadata.FromContext(ctx) - fmt.Printf("[Log Wrapper] ctx: %v service: %s method: %s\n", md, req.Service(), req.Method()) - return l.Client.Call(ctx, req, rsp) -} - -// Implements client.Wrapper as logWrapper -func logWrap(c client.Client) client.Client { - return &logWrapper{c} -} - -// Implements the server.HandlerWrapper -func logHandlerWrapper(fn server.HandlerFunc) server.HandlerFunc { - return func(ctx context.Context, req server.Request, rsp interface{}) error { - fmt.Printf("[Log Wrapper] Before serving request method: %v\n", req.Method()) - err := fn(ctx, req, rsp) - fmt.Println("[Log Wrapper] After serving request") - return err - } -} - -type Greeter struct{} - -func (g *Greeter) Hello(ctx context.Context, req *proto.HelloRequest, rsp *proto.HelloResponse) error { - rsp.Greeting = "Hello " + req.Name - return nil -} - -// Setup and the client -func runClient(service micro.Service) { - // Create new greeter client - greeter := proto.NewGreeterClient("greeter", service.Client()) - - // Call the greeter - rsp, err := greeter.Hello(context.TODO(), &proto.HelloRequest{Name: "John"}) - if err != nil { - fmt.Println(err) - return - } - - // Print response - fmt.Println(rsp.Greeting) -} - -func main() { - // Create a new service. Optionally include some options here. - service := micro.NewService( - micro.Client(client.NewClient(client.Wrap(logWrap))), - micro.Server(server.NewServer(server.WrapHandler(logHandlerWrapper))), - micro.Name("greeter"), - micro.Version("latest"), - micro.Metadata(map[string]string{ - "type": "helloworld", - }), - - // Setup some flags. Specify --run_client to run the client - - // Add runtime flags - // We could do this below too - micro.Flags(cli.BoolFlag{ - Name: "run_client", - Usage: "Launch the client", - }), - ) - - // Init will parse the command line flags. Any flags set will - // override the above settings. Options defined here will - // override anything set on the command line. - service.Init( - // Add runtime action - // We could actually do this above - micro.Action(func(c *cli.Context) { - if c.Bool("run_client") { - runClient(service) - os.Exit(0) - } - }), - ) - - // By default we'll run the server unless the flags catch us - - // Setup the server - - // Register handler - proto.RegisterGreeterHandler(service.Server(), new(Greeter)) - - // Run the server - if err := service.Run(); err != nil { - fmt.Println(err) - } -}