Static Methodvapor 4.114.1Vapor->WebSocketKit
connect(to:headers:configuration:on:onUpgrade:)
WebSocket+Concurrency.swift:102@preconcurrency static func connect(to url: URL, headers: HTTPHeaders = [:], configuration: WebSocketClient.Configuration = .init(), on eventLoopGroup: EventLoopGroup = MultiThreadedEventLoopGroup.singleton, onUpgrade: @escaping (WebSocket) -> ()) async throws