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Add sender example for protobuf data (#712)
* Add sender example for protobuf data This example mirrors the existing HTTP sender example except that it adds a protobuf object as the payload instead of a JSON map. Signed-off-by: Kevin Conway <kevinconway@invisionapp.com> * Fix envelope format and dataschema in sample Signed-off-by: Kevin Conway <kevinconway@invisionapp.com> * Add protobuf HTTP receiver sample Signed-off-by: Kevin Conway <kevinconway@invisionapp.com>
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| /* | ||
| Copyright 2021 The CloudEvents Authors | ||
| SPDX-License-Identifier: Apache-2.0 | ||
| */ | ||
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| package main | ||
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| import ( | ||
| "context" | ||
| "log" | ||
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| _ "github.com/cloudevents/sdk-go/binding/format/protobuf/v2" | ||
| cloudevents "github.com/cloudevents/sdk-go/v2" | ||
| ) | ||
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| func main() { | ||
| ctx := context.Background() | ||
| p, err := cloudevents.NewHTTP() | ||
| if err != nil { | ||
| log.Fatalf("failed to create protocol: %s", err.Error()) | ||
| } | ||
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| c, err := cloudevents.NewClient(p) | ||
| if err != nil { | ||
| log.Fatalf("failed to create client, %v", err) | ||
| } | ||
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| log.Printf("will listen on :8080\n") | ||
| log.Fatalf("failed to start receiver: %s", c.StartReceiver(ctx, receive)) | ||
| } | ||
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| func receive(ctx context.Context, event cloudevents.Event) { | ||
| log.Printf("%s", event) | ||
| payload := &Sample{} | ||
| if err := event.DataAs(payload); err != nil { | ||
| log.Printf("failed to decode protobuf data: %s", err) | ||
| return | ||
| } | ||
| log.Printf("decoded protobuf: %s", payload.Value) | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,7 @@ | ||
| syntax = "proto3"; | ||
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| package pb; | ||
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| option go_package = "/;main"; | ||
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| message Sample { string value = 1; } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,49 @@ | ||
| // | ||
| // Copyright 2021 The CloudEvents Authors | ||
| // SPDX-License-Identifier: Apache-2.0 | ||
| // | ||
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| package main | ||
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| import ( | ||
| "context" | ||
| "log" | ||
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| pbcloudevents "github.com/cloudevents/sdk-go/binding/format/protobuf/v2" | ||
| cloudevents "github.com/cloudevents/sdk-go/v2" | ||
| cehttp "github.com/cloudevents/sdk-go/v2/protocol/http" | ||
| ) | ||
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| func main() { | ||
| ctx := cloudevents.ContextWithTarget(context.Background(), "http://localhost:8080/") | ||
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| p, err := cloudevents.NewHTTP() | ||
| if err != nil { | ||
| log.Fatalf("failed to create protocol: %s", err.Error()) | ||
| } | ||
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| c, err := cloudevents.NewClient(p, cloudevents.WithTimeNow(), cloudevents.WithUUIDs()) | ||
| if err != nil { | ||
| log.Fatalf("failed to create client, %v", err) | ||
| } | ||
|
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| for i := 0; i < 10; i++ { | ||
| data := &Sample{Value: "sample"} | ||
| e := cloudevents.NewEvent() | ||
| e.SetType("com.cloudevents.sample.sent") | ||
| e.SetSource("https://github.com/cloudevents/sdk-go/v2/samples/http/sender-protobuf") | ||
| e.SetDataSchema("my-schema-registry://" + string(data.ProtoReflect().Descriptor().FullName())) | ||
| _ = e.SetData(pbcloudevents.ContentTypeProtobuf, data) | ||
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| res := c.Send(ctx, e) | ||
| if cloudevents.IsUndelivered(res) { | ||
| log.Printf("Failed to send: %v", res) | ||
| } else { | ||
| var httpResult *cehttp.Result | ||
| if cloudevents.ResultAs(res, &httpResult) { | ||
| log.Printf("Sent %d with status code %d", i, httpResult.StatusCode) | ||
| } | ||
| log.Printf("Send did not return an HTTP response: %s", res) | ||
| } | ||
| } | ||
| } |
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