Dapr PubSub Example with go-sdk

This folder contains two Go files that use the Go SDK to invoke the Dapr Pub/Sub API.

Diagram

Step

Prepare

• Dapr installed

Run Subscriber Server

dapr run --app-id sub \
         --app-protocol http \
         --app-port 8080 \
         --dapr-http-port 3500 \
         --log-level debug \
         --components-path ./config \
         go run sub/sub.go

Run Publisher

export DAPR_PUBSUB_NAME=messages

dapr run --app-id pub \
         --log-level debug \
         --components-path ./config \
         go run pub/pub.go

Cleanup

dapr stop --app-id sub
(lsof -i:8080 | grep sub) | awk '{print $2}' | xargs  kill

Result

== APP == 2023/03/29 21:36:07 event - PubsubName: messages, Topic: neworder, ID: 82427280-1c18-4fab-b901-c7e68d295d31, Data: ping
== APP == 2023/03/29 21:36:07 event - PubsubName: messages, Topic: neworder, ID: cc13829c-af77-4303-a4d7-55cdc0b0fa7d, Data: multi-pong
== APP == 2023/03/29 21:36:07 event - PubsubName: messages, Topic: neworder, ID: 0147f10a-d6c3-4b16-ad5a-6776956757dd, Data: multi-ping