109 lines
5.1 KiB
Markdown
109 lines
5.1 KiB
Markdown
# @push.rocks/smartclickhouse
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an odm for talking to clickhouse
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## Install
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To install `@push.rocks/smartclickhouse`, use the following command with npm:
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```sh
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npm install @push.rocks/smartclickhouse --save
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```
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Or with yarn:
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```sh
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yarn add @push.rocks/smartclickhouse
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```
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This will add the package to your project's dependencies.
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## Usage
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`@push.rocks/smartclickhouse` is an ORM (Object Relational Mapping) module specifically designed for interacting with ClickHouse databases efficiently and effectively. Leveraging TypeScript, it offers strong typing and intelligent code completion, making database operations more intuitive and less error-prone.
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### Setting Up and Starting the Connection
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First, you need to establish a connection with the ClickHouse database. This involves creating an instance of `SmartClickHouseDb` and starting it:
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```typescript
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import { SmartClickHouseDb } from '@push.rocks/smartclickhouse';
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// Create a new instance of SmartClickHouseDb with your ClickHouse database details
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const dbInstance = new SmartClickHouseDb({
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url: 'http://localhost:8123', // URL of ClickHouse instance
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database: 'yourDatabase', // Database name you want to connect
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username: 'default', // Optional: Username for authentication
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password: 'password', // Optional: Password for authentication
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unref: true // Optional: Allows service to exit while awaiting database startup
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});
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// Start the instance to establish the connection
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await dbInstance.start();
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```
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### Working with Time Data Tables
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`smartclickhouse` allows handling of time-series data through `TimeDataTable`, automating tasks such as table creation and data insertion.
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#### Creating or Accessing a Table
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To create a new time data table or access an existing one:
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```typescript
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const tableName = 'yourTimeDataTable'; // Name of the table you want to access or create
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const table = await dbInstance.getTable(tableName);
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```
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#### Adding Data to the Table
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Once you have the table instance, you can insert data into it:
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```typescript
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await table.addData({
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timestamp: Date.now(), // Timestamp in milliseconds
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message: 'A log message.', // Arbitrary data field
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temperature: 22.5, // Another example field
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tags: ['tag1', 'tag2'] // An example array field
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});
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```
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`addData` method is designed to be flexible, allowing insertion of various data types and automatically managing table schema adjustments.
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### Advanced Usage and Custom Data Handling
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`smartclickhouse` supports custom data types and complex data structures. For instance, to add support for nested objects or custom data processing before insertion, you might need to extend existing classes or contribute to module development for broader use cases.
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### Complete Feature Set Overview
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While the above examples cover basic usage, `@push.rocks/smartclickhouse` offers a wide range of functionalities, including but not limited to:
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- Robust error handling and reconnection strategies
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- Efficient bulk data insertion mechanisms
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- Support for ClickHouse specific features like materialized views and aggregating MergeTree engines
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- Techniques for managing and querying large time-series datasets
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For a comprehensive guide on leveraging all `@push.rocks/smartclickhouse` features, consult the module documentation and examples. Engage with the community for tips on advanced use cases and optimization strategies for handling time-series data with ClickHouse.
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### Contribution
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Contributions to `@push.rocks/smartclickhouse` are welcome. Whether it's through submitting issues, proposing improvements, or adding to the codebase, your input is valuable. The project is designed to be open and accessible, striving for a high-quality, community-driven development process.
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## License and Legal Information
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This repository contains open-source code that is licensed under the MIT License. A copy of the MIT License can be found in the [license](license) file within this repository.
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**Please note:** The MIT License does not grant permission to use the trade names, trademarks, service marks, or product names of the project, except as required for reasonable and customary use in describing the origin of the work and reproducing the content of the NOTICE file.
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### Trademarks
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This project is owned and maintained by Task Venture Capital GmbH. The names and logos associated with Task Venture Capital GmbH and any related products or services are trademarks of Task Venture Capital GmbH and are not included within the scope of the MIT license granted herein. Use of these trademarks must comply with Task Venture Capital GmbH's Trademark Guidelines, and any usage must be approved in writing by Task Venture Capital GmbH.
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### Company Information
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Task Venture Capital GmbH
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Registered at District court Bremen HRB 35230 HB, Germany
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For any legal inquiries or if you require further information, please contact us via email at hello@task.vc.
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By using this repository, you acknowledge that you have read this section, agree to comply with its terms, and understand that the licensing of the code does not imply endorsement by Task Venture Capital GmbH of any derivative works.
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