创建连接池TypeOrm

如何使用TypeOrm创建连接池？在探索 TypeOrm 时，我想创建连接池以使用 MySql

下面是代码片段：

import { createConnection } from 'typeorm';

export const databaseProviders = [
  {
    provide: 'DbConnectionToken',
    useFactory: async () => await createConnection({
      type: 'mysql',
      host: 'localhost',
      port: 8889,
      username: 'root',
      password: 'root',
      database: 'typeorm_test',
      entities: [
        __dirname + '/../**/**.entity{.ts,.js}',
      ],
      autoSchemaSync: true,
      logging: 'all',
    }),
  },
];

TypeORM 默认使用连接池，默认有 10 个连接。如果您想要自定义池限制（建议），可以提及相同的内容connectionLimit under extra传递给底层 MySQL 驱动程序的选项。

 [
    {
        "name": "default",
        "type": "mysql",
        "host": "mysql.db",
        "port": 3306,
        "username": "appUser",
        "password": "appRandomPassword",
        "database": "entity_schema",
        "entities": [
            "dist/models/entities/**/*.js"
        ],
        "logging": [
            "error"
        ],
        "extra": {
            "connectionLimit": 5
        }
    }
]

TypeORM 文档 https://typeorm.io/data-source-options#common-data-source-options

MySQL 连接池选项 https://github.com/mysqljs/mysql#pool-options可以通过下面extra， 如果需要。