@medishn/gland-qiu
@medishn/gland-qiu
is a flexible and efficient database management tool that handles multiple SQL databases with powerful caching, rate-limiting, and task management functionalities for database operations.
Features
- Multi-database Support: Supports various SQL databases through a flexible configuration.
- Rate Limiting: Ensures controlled execution of tasks with custom rate-limits.
- Task Management: Queue-based task execution system for managing multiple queries.
- Cache Management: In-memory caching system to reuse frequently used commands and reduce overhead.
- File-based Query Execution: Supports SQL queries from
.sql
files.
Installation
Install the package using npm:
npm install @medishn/gland-qiu
Getting Started
Below is an example of how to use the Qiu
class to run database queries:
Initialization
To begin using Qiu
, you need to initialize it with your database type and connection string.
import { Qiu } from "@medishn/gland-qiu";
const db = new Qiu({
type: "postgresql",
connect: "psql -U postgres -d postgres -h localhost -p 5432",
});
You can also specify MySQL or MariaDB:
const db = new Qiu({
type: "mysql",
connect: "mysql://username:password@localhost:3306/mydatabase",
});
Execute a Query
Simple Query
To execute a simple SQL query, use the exec
method.
await db.exec("SELECT * FROM users;");
File-based Query
You can also run SQL queries stored in .sql
files:
await db.exec("queries/init.sql", { isFile: true });
Get Output from the Query
If you want the result of the query, set the value
option to true
.
const result = await db.exec("SELECT * FROM users;", { value: true });
console.log(result);
API Reference
Qiu
constructor(config: { connect: string, type: DatabaseSqlType })
- config: An object containing:
- connect: The connection string or URI of the database.
- type: The type of database.
exec(query: string, options?: { value?: boolean, isFile?: boolean }): Promise<void | string>
- query: The SQL query string or path to the
.sql
file.
- options: (Optional) If
value
is set to true
, the result of the query will be returned. If isFile
is set to true
, the query will be treated as a file path.
Example
import { Qiu } from "@medishn/gland-qiu";
const db = new Qiu({
type: "postgresql",
connect: "psql -U postgres -d test_qiu -h localhost -p 5432",
});
await db.exec("init.sql", { isFile: true });
const result = await db.exec("SELECT * FROM users;", { value: true });
console.log(result);
Contributing
Contributions are welcome! Please see the CONTRIBUTING.md file for more information.
Changelog
Details about the latest changes are documented in CHANGELOG.md.
Security
If you find any security-related issues, please report them to bitsgenix@gmail.com.
License
This project is licensed under the MIT License. See the LICENSE file for details.