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Creating a New Python App
If you haven't already, you'll first need to set up your development environment and ensure you have a Grainite server running (can be running locally in a Docker container).
Here you would configure your application in a YAML file. You may use App Configuration Options as a reference.
app_name: food_app
# For python: Location of root python app directories relative to this config file.
python_dir: python_app
topics:
- topic_name: orders_topic
key_name: order_id
key_type: string
tables:
- table_name: orders_table
key_type: string
action_handlers:
# Supported types: java, python
- type: python
script_path: handlers/orders_handler.py
actions:
- action_name: handleOrders
# `method_name` is optional. Default method_name is the `action_name`
method_name: handle_orders
# `handles_multiple_actions` is optional. Default is `false`.
handles_multiple_actions: false
subscriptions:
- subscription_name: orderUpdates
topic_name: orders_topic
topic_key: order_id
Implement your action handlers, client programs, and any other parts of your app's functionality. You may use the API pages here or the Grainite Pydocs for reference.
Load the application onto the Grainite server from the app's main directory.
gx load
Run your client program to send events to the application.
python3 Client.py
- Print all events in the topic:
gx topic dump <topic name> - Print all grains in the table:
gx table dump <table name>
Last modified 3mo ago