MongoDB Swift 드라이버

import MongoSwiftSync
defer {
    // free driver resources
    cleanupMongoSwift()
}
// replace the following string with your connection uri
let uri = "mongodb+srv://<db_username>:<db_password>@<cluster-address>/test?w=majority"
let client = try MongoClient(uri)
// print a list of database names
print (try client.listDatabaseNames())
// your application logic

import MongoSwift
import NIO
let elg = MultiThreadedEventLoopGroup(numberOfThreads: 4)
// replace the following string with your connection uri
let uri = "mongodb+srv://<db_username>:<db_password>@<cluster-address>/test?w=majority"
let client = try MongoClient(
    uri,
    using: elg
)
defer {
    // clean up driver resources
    try? client.syncClose()
    cleanupMongoSwift()
    // shut down EventLoopGroup
    try? elg.syncShutdownGracefully()
}
// print a list of database names
print(try client.listDatabaseNames().wait())
// your application logic