Eurekaで非同期処理で取得したデータでフォームを更新して画面に反映させる ref: https://qiita.com/RichGreenTea/items/dda86ab643f01ea5b0fa

file0.swift

self.form.allRows.forEach({$0.updateCell(); $0.reload()})

file1.swift

import Eureka

final class ExampleFormViewController: FormViewController {

    private var user: User?

    ...

    override func viewDidLoad() {
        super.viewDidLoad()

        setView()
        setForm()
        fetchUser()
    }

    private func setView() {
        ...
    }

    private func setForm() {
        self.form
           +++ Section("User info")
           <<< TextRow() { row in
                row.title = "Name"
                row.placeholder = "hoge fuga"
            }.cellUpdate { [unowned self] cell, row in
                // フェッチしたuserのnameを代入
                row.value = self.user?.name
            }
            ...
    }

    private func fetchUser() {
        let successHandler: (User) -> Void = { user in
           self.user = user
           // フォームを更新・画面に反映
           self.form.allRows.forEach({$0.updateCell(); $0.reload()})
        }

        UserLogic.get(successHandler: successHandler, failureHandler: {_ in})
    }
}