https://github.com/watchdg/node-clickhouse-buffer

https://github.com/watchdg/node-clickhouse-buffer

Last synced: about 2 months ago
JSON representation

• Host: GitHub
• URL: https://github.com/watchdg/node-clickhouse-buffer
• Owner: WatchDG
• License: mit
• Created: 2022-04-08T04:25:07.000Z (about 4 years ago)
• Default Branch: main
• Last Pushed: 2023-04-23T14:05:26.000Z (about 3 years ago)
• Last Synced: 2025-02-27T00:41:06.495Z (over 1 year ago)
• Language: TypeScript
• Size: 75.2 KB
• Stars: 1
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# clickhouse-buffer

## Install

```shell

yarn add clickhouse-buffer

# or

npm install clickhouse-buffer

```

## How to use

```typescript

import {ClickhouseBuffer, DEFAULT_DATABASE} from "clickhouse-buffer";

(async () => {

    const database = DEFAULT_DATABASE;

    const table = 'events';

    const directoryPath = await ClickhouseBuffer.prepareDirectoryPath('buffer', database, table, 0o777);

    const clickhouseBuffer = new ClickhouseBuffer({

        directoryPath,

        database,

        table

    });

    await clickhouseBuffer.clickhouseClient.query(`CREATE TABLE IF NOT EXISTS ${database}.${table} (id UInt16) ENGINE = MergeTree() ORDER BY id`);

    await clickhouseBuffer.loadFilesToDatabase();

    for (let i = 0; i <= 9; i++) {

        clickhouseBuffer.push([i]);

    }

    setTimeout(() => {

        for (let i = 10; i <= 19; i++) {

            clickhouseBuffer.push([i]);

        }

    }, 5000)

    setTimeout(() => {

        clickhouseBuffer.release();

    }, 15000);

})();

```