Golang MongoDB connection pool

Efficiently control the number of database connections and realize automatic connection management

Details:

Provide connection pool management through struct MongoPool.

The connection pool parameters are set during initialization, including:

• cached channel for storing connections, and the cache controls the maximum number of idle connections.
• Database address,
• timeout period,
• maximum number of connections.

for example:

func init() {
	once.Do(func() {
		DBPool = &MongoPool{
			pool:        make(chan *mongo.Client, 10), 
			connections: 0,                            
			timeout:     10 * time.Second,
			uri:         "mongodb://user:[email protected]:27017/dbname",
			poolSize:    10, 
		}
	})
}

Note: You can use function once.Do to ensure that the connection pool is only created once.