quickstarts/state_management/javascript/http

Dapr state management (HTTP Client)

In this quickstart, you'll create a microservice to demonstrate Dapr's state management API. The service generates messages to store data in a state store. See Why state management to understand when this pattern might be a good choice for your software architecture.

Visit this link for more information about Dapr and State Management.

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

This quickstart includes one service: Node client service order-processor

This section shows how to run applications at once using multi-app run template files with dapr run -f .. This enables to you test the interactions between multiple applications.

Open a new terminal window and run order-processor using the multi app run template defined in dapr.yaml:

1. Open a new terminal window and navigate to order-processor directory:

  cd ./order-processor
  npm install
  cd ..

2. Run the Node service app with Dapr:

  dapr run -f .

3. Stop and cleanup application process

  dapr stop -f .

Run a single app at a time with Dapr (Optional)

An alternative to running all or multiple applications at once is to run single apps one-at-a-time using multiple dapr run .. -- npm start commands. This next section covers how to do this.

Run Node service with Dapr

1. Navigate to folder and install dependencies:

  cd ./order-processor
  npm install

2. Run the Node service app with Dapr:

dapr run --app-id order-processor --resources-path ../../../resources/ -- npm start

2. Stop and cleanup the process

dapr stop --app-id order-processor