The purpose of this sample application is to illustrate building responsive systems with serverless, event-driven Java on Azure; the result of this project will be to create a real-time inventory hub.
In order to create and deploy this sample application, you need to have the following:
An Azure subscription; if you don't already have an Azure subscription, you can activate your MSDN subscriber benefits or sign up for a free Azure account.
In addition, you will need all of the following components before you go through the steps in this README:
| Azure CLI | Java 8 | Maven 3 | Git |
NOTE: There are additional requirements in the ~/deployment/README.md file which are required in order to setup your development environment; other required components will be installed automatically by the provisioning scripts.
In the following sections, you will create a development sandbox environment on Azure which uses the following components:
- Two Event Hubs in one Event Hub Namespace per region
- an event hub receives events from Point of Sale (POS) and Point of Intake (POI) units
- an event hub receives events to notify any app that listens for inventory change
- One Cosmos DB configured for "read/write" in the first region and "read" for additional regions
- Set of Azure Functions apps per region
- One Point of Sale (POS) function app to simulate a terminal in a store, one per terminal
- One Point of Intake (POI) function app to simulate a terminal in a warehouse, one per terminal
- One Update Inventory function app triggered by events produced by POS and POI units to update inventory
- One Notify function app triggered by updates to inventory
- One Azure Web App per region or One Pivotal Cloud Foundry instance on Azure per region
The following diagram illustrates the full topology for this sample application environment:
- Open a command prompt and navigate to the ~/deployment/ folder of your local repo.
cd deployment-
Login to your Azure account and specify which subscription to use:
az login az account set --subscription "<your-azure-subscription>"
NOTE: You can use either a subscription name or id when specifying which subscription to use; to obtain a list of your subscriptions, type
az account list. -
Set a unique prefix for creating an initial layout on Azure.
export INVENTORY_HUB_APP_NAME="<your-unique-prefix>"
-
Follow the deployment README instructions to create Azure resources.
- Deploy Update Product Inventory function app as described in the README
- Deploy Append Transactions function app as described in the README
- Deploy Inventory Dashboard Web app as described in README
- Deploy Point of Inventory terminal as function app as described in README. Deploy one per terminal. If you were to imagine 4 terminals then you would deploy 4 similar function apps
- Deploy Point of Sale terminal as function app as described in README. Deploy one per terminal. If you were to imagine 4 terminals then you would deploy 4 similar function apps
Open the Inventory Hub Web app ...
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This project has adopted the Microsoft Open Source Code of Conduct. For more information see the Code of Conduct FAQ or contact [email protected] with any additional questions or comments.