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Merge pull request #175 from migalabs/feat-migration-clickhouse
Migration Database to Clickhouse
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,4 @@ | ||
| DB_USER= | ||
| DB_HOST= | ||
| DB_NAME= | ||
| DB_PASSWORD= |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| import { createClient } from '@clickhouse/client'; | ||
| import dotenv from 'dotenv'; | ||
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| dotenv.config(); | ||
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| const client = createClient({ | ||
| host: process.env.DB_HOST, | ||
| username: process.env.DB_USER, | ||
| password: process.env.DB_PASSWORD, | ||
| database: process.env.DB_NAME, | ||
| }); | ||
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| interface Table { | ||
| name: string; | ||
| } | ||
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| interface Column { | ||
| name: string; | ||
| type: string; | ||
| } | ||
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| const fetchTables = async (): Promise<Table[]> => { | ||
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| const resultSet = await client.query({ | ||
| query: 'SHOW TABLES', | ||
| format: 'JSONEachRow', | ||
| }); | ||
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| return resultSet.json(); | ||
| } | ||
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| const fetchColumns = async (table: string): Promise<Column[]> => { | ||
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| const resultSet = await client.query({ | ||
| query: `DESCRIBE ${table}`, | ||
| format: 'JSONEachRow', | ||
| }); | ||
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| return resultSet.json(); | ||
| } | ||
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| const printSchema = async () => { | ||
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| const tables = await fetchTables(); | ||
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| console.log('Database Schema:\n'); | ||
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| for (const table of tables) { | ||
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| console.log(`- ${table.name}`); | ||
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| const columns = await fetchColumns(table.name); | ||
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| for (const column of columns) { | ||
| console.log(` - ${column.name} (${column.type})`); | ||
| } | ||
| } | ||
| }; | ||
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| printSchema(); |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,22 @@ | ||
| { | ||
| "name": "clickhouse-overviewer", | ||
| "version": "1.0.0", | ||
| "description": "", | ||
| "main": "index.js", | ||
| "scripts": { | ||
| "build": "npx tsc", | ||
| "start": "node dist/app.js", | ||
| "launch": "npm run build && npm start" | ||
| }, | ||
| "keywords": [], | ||
| "author": "", | ||
| "license": "ISC", | ||
| "devDependencies": { | ||
| "@types/node": "^20.12.7", | ||
| "typescript": "^5.4.5" | ||
| }, | ||
| "dependencies": { | ||
| "@clickhouse/client": "^0.2.10", | ||
| "dotenv": "^16.4.5" | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,11 @@ | ||
| { | ||
| "compilerOptions": { | ||
| "module": "commonjs", | ||
| "esModuleInterop": true, | ||
| "target": "es6", | ||
| "moduleResolution": "node", | ||
| "sourceMap": true, | ||
| "outDir": "dist", | ||
| }, | ||
| "lib": ["es2015"] | ||
| } |
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