To install this package, use the following command:
npm i @lambda-group/charydbis @lambda-group/scylladb
These instructions will get you a copy of the project up and running π on your local machine for development and testing purposes.
- Docker: We use Docker π³ to run the Scylla database easily without the need for a complex local setup.
- Node.js: Make sure you have Node.js installed on your system to run JavaScript code.
- Scylla Driver: To handle the connections.
-
Start ScyllaDB in Docker:
Run a ScyllaDB instance using the following Docker command:
docker run --name scylladb -d --rm -it -p 9042:9042 scylladb/scylla --smp 2
This command pulls the Scylla image if it's not already present on your system, and starts a new π container with the Scylla database.
-
Create a DataSource:
Here's a simple script that creates a data source:
import { DataSource } from "@lambda-group/charydbis"; using scyllaDataSource = await new DataSource({ nodes: ["localhost:9042"], }).initialize("system_schema");
Here we leverage the
using
keyword so in the end of the scope on [Symbol.dispose] we automatically close the connection so you don't have to bother. -
Create a model:
Now we can create a structure that will represent out data.
@Model("scylla_tables") class ScyllaTables { @Column() name: string; }
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Access the repository:
You can now get a default repository from the model.
const scyllaTablesRepository = scyllaDataSource.getRepository(ScyllaTables); const tables: Array<ScyllaTables> = await scyllaTablesRepository.find();
You can find more examples in the examples folder.