MongoKitten and Perfect-MongoDB

MongoKitten.swift

import MongoKitten
import Foundation

let client = try Server("mongodb://localhost")

// Creating a user Document
func createUser() throws -> Document {
    return [
        "username": "Joannis",
        "age": 20,
        "registrationDate": Date()
    ]
}

func insertNewUser() throws {
    let users = client["openkitten"]["users"]
    try users.insert(try createUser())
}

func removeUsers() throws {
    try client["openkitten"]["users"].drop()
}

for i in 0..<1_000 {
    try insertNewUser()
}

for (pos, _) in try client["openkitten"]["users"].find().enumerated() {
    print(pos)
}

Perfect.swift

#if os(Linux)
    import Glibc
#else
    import Darwin
#endif

import Foundation

import MongoDB

let client = try MongoClient(uri: "mongodb://localhost:27017")

func createUser() -> BSON {
    let doc = BSON()
    doc.append(key: "username", string: "Joannis")
    doc.append(key: "age", int: 20)
    
    let registrationDate = Int(Date().timeIntervalSince1970)
    doc.append(key: "registrationDate", time: registrationDate)
    
    return doc
}

enum ApplicationError : Error {
    case cannotInsert
    case cannotDrop
}

func insertNewUser() throws {
    let users = client.getCollection(databaseName: "perfect", collectionName: "users")
    
    guard case .success = users.insert(document: createUser()) else {
        throw ApplicationError.cannotInsert
    }
}

func removeUsers() throws {
    guard case .success = client.getCollection(databaseName: "perfect", collectionName: "users").drop() else {
        throw ApplicationError.cannotDrop
    }
}

for i in 0..<1_000 {
    try insertNewUser()
}

guard let cursor = client.getCollection(databaseName: "perfect", collectionName: "users").find() else {
    fatalError("No cursor")
}

for (pos, _) in cursor.enumerated() {
    print(pos)
}