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quickstarts/pub_sub/javascript/sdk/README.md

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Dapr pub/sub

In this quickstart, you'll create a publisher microservice and a subscriber microservice to demonstrate how Dapr enables a publish-subcribe pattern. The publisher will generate messages of a specific topic, while subscribers will listen for messages of specific topics. See Why Pub-Sub to understand when this pattern might be a good choice for your software architecture.

Visit this link for more information about Dapr and Pub-Sub.

Note: This example leverages the Dapr client SDK. If you are looking for the example using only HTTP requests click here.

This quickstart includes one publisher:

  • Node client message generator checkout

And one subscriber:

  • Node subscriber order-processor

Run Node message publisher with Dapr

  1. Install dependencies:
cd ./checkout
npm install
  1. Run the Node publisher app with Dapr:
dapr run --app-id checkout --components-path ../../../components/  --app-port 5001 -- node .

Run Node message subscriber with Dapr

  1. Install dependencies:
cd ./order-processor
npm install
  1. Run the Node publisher app with Dapr:
dapr run --app-id checkout --components-path ../../../components/  --app-port 5001 -- node .

dapr stop --app-id checkout
dapr stop --app-id order-processor