mirror of https://github.com/dapr/go-sdk.git
51 lines
1.6 KiB
Go
51 lines
1.6 KiB
Go
/*
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Copyright 2021 The Dapr Authors
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main
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import (
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"context"
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"log"
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"net/http"
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"github.com/dapr/go-sdk/service/common"
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daprd "github.com/dapr/go-sdk/service/http"
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)
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// Subscription to tell the dapr what topic to subscribe.
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// - PubsubName: is the name of the component configured in the metadata of pubsub.yaml.
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// - Topic: is the name of the topic to subscribe.
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// - Route: tell dapr where to request the API to publish the message to the subscriber when get a message from topic.
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var sub = &common.Subscription{
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PubsubName: "messages",
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Topic: "neworder",
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Route: "/orders",
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}
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func main() {
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s := daprd.NewService(":8080")
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if err := s.AddTopicEventHandler(sub, eventHandler); err != nil {
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log.Fatalf("error adding topic subscription: %v", err)
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}
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if err := s.Start(); err != nil && err != http.ErrServerClosed {
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log.Fatalf("error listenning: %v", err)
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}
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}
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func eventHandler(ctx context.Context, e *common.TopicEvent) (retry bool, err error) {
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log.Printf("event - PubsubName: %s, Topic: %s, ID: %s, Data: %s", e.PubsubName, e.Topic, e.ID, e.Data)
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return false, nil
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}
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