MySQL and MariaDB (5.5 and 10.2+) database driver for Deno.
MariaDB 10.0 and 10.1 are not supported at the moment
On this basis, there is also an ORM library: Deno Simple Orm
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- Connecting to database
- Retring
- Timeout
- Basic login authentication
- Simple queries (no arguments)
- Parsing data types
- Queries with parameters
- Close connection
- Connection pool
- Transaction
- Test case
- Support MariaDB 10.0
- Support MariaDB 10.1
- Support caching_sha2_password auth plugin (mysql8 default)
import { Client } from "https://deno.land/x/mysql/mod.ts";
const client = await new Client().connect({
hostname: "127.0.0.1",
username: "root",
db: "dbname",
password: "password",
});
Create client with connection pool.
pool size is auto increment from 0 to poolSize
import { Client } from "https://deno.land/x/mysql/mod.ts";
const client = await new Client().connect({
hostname: "127.0.0.1",
username: "root",
db: "dbname",
poolSize: 3, // connection limit
password: "password",
});
await client.execute(`CREATE DATABASE IF NOT EXISTS enok`);
await client.execute(`USE enok`);
await client.execute(`DROP TABLE IF EXISTS users`);
await client.execute(`
CREATE TABLE users (
id int(11) NOT NULL AUTO_INCREMENT,
name varchar(100) NOT NULL,
created_at timestamp not null default current_timestamp,
PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;
`);
let result = await client.execute(`INSERT INTO users(name) values(?)`, [
"manyuanrong",
]);
console.log(result);
// { affectedRows: 1, lastInsertId: 1 }
let result = await client.execute(`update users set ?? = ?`, ["name", "MYR"]);
console.log(result);
// { affectedRows: 1, lastInsertId: 0 }
let result = await client.execute(`delete from users where ?? = ?`, ["id", 1]);
console.log(result);
// { affectedRows: 1, lastInsertId: 0 }
const username = "manyuanrong";
const users = await client.query(`select * from users`);
const queryWithParams = await client.query(
"select ??,name from ?? where id = ?",
["id", "users", 1]
);
console.log(users, queryWithParams);
const users = await client.transaction(async (conn) => {
await conn.execute(`insert into users(name) values(?)`, ["test"]);
return await conn.query(`select ?? from ??`, ["name", "users"]);
});
console.log(users.length);
await client.close();
The tests require a database to run against.
docker container run --rm -d -p 3306:3306 -e MYSQL_ALLOW_EMPTY_PASSWORD=true docker.io/mariadb:latest
deno test --allow-env --allow-net=127.0.0.1:3306 ./test.ts
Use different docker images to test against different versions of MySQL and MariaDB. Please see ci.yml for examples.