Авторизация без SDK для iOS

<key>LSApplicationQueriesSchemes</key>
<array>
    <string>vkauthorize-silent</string>
</array>
<key>CFBundleURLTypes</key>
<array>
    <dict>
        <key>CFBundleTypeRole</key>
        <string>Editor</string>
        <key>CFBundleURLName</key>
        <string>auth_callback</string>
        <key>CFBundleURLSchemes</key>
        <array>
            <string>vk7915193</string> // Вместо 7915193 подставьте ID вашего приложения.
        </array>
    </dict>
</array>

let url = "https://id.vk.ru/authorize?state=abracadabra&response_type=code&code_challenge=VT6yRsqMDL8EgEfcGmtWVaaLzTw5KcuKBoGEmfDBJaw&code_challenge_method=S256&client_id=7915193&redirect_uri=vk7915193://vk.ru/blank.html&prompt=login&scope=phone%20email"

let session = ASWebAuthenticationSession(
    url: url,
    callbackURLScheme: "vk7915193" // Идентификатор вашего приложения, например 7915193.
) { [weak self] callbackUrl, error in
    guard let self = self else {
        return
    }
    self.session = nil
    self.handleCallback(callbackUrl, error) // Обработка url, на который произошел редирект.
}
self.session = session
session.start()

vk7915193://vk.ru/blank.html?device_id=generatedencrypteddeviceid123&state=abracadabra&code=vk2.a.FmLgF_...&type=code_v2

vk7915193://?code=vk2.a.FmLgF_...&device_id=generatedencrypteddeviceid123&state=abracadabra&type=code_v2&vkconnect_auth_provider_method=external_auth

func application(
    _ app: UIApplication,
    open url: URL,
    options: [UIApplication.OpenURLOptionsKey : Any] = [:]
) -> Bool {
      //  Обработчик url.
}

func scene(
    _ scene: UIScene,
    openURLContexts URLContexts: Set<UIOpenURLContext>
) {
    URLContexts.forEach { ctx in
        //  Добавьте обработчик ctx.url.
    }
}

var body: some Scene {
    WindowGroup {
        ContentView()
            .onOpenURL { url in
                //  Добавьте обработчик url.
            }
    }
}

curl --location 'https://id.vk.ru/oauth2/auth?grant_type=authorization_code&redirect_uri=vk7915193%3A%2F%2Fvk.ru%2Fblank.html&client_id=7915193&device_id=generatedencrypteddeviceid123&state=abracadabracodeexchange&code_verifier=TMqwHtKeYrAz42vNmy5KsxePTYt--KS-yZsma6q4vrE' \
--data '{
    "code": "vk2.a.02-Bsy..."
}'

{
    "refresh_token": "vk2.a.pkzh...",
    "access_token": "vk2.a.hD-D9...",
    "id_token": "eyJ0eXAiOi...",
    "token_type": "Bearer",
    "expires_in": 3600,
    "user_id": 1234567890,
    "state": "abracadabracodeexchange",
    "scope": "vkid.personal_info email phone"
}

curl --location 'https://id.vk.ru/oauth2/auth?grant_type=refresh_token&client_id=7915193&device_id=generatedencrypteddeviceid123' \
--header 'Content-Type: application/json' \
--data '{
    "refresh_token": "vk2.a.pkzh..."
}'

{
    "refresh_token": "vk2.a.iiG...",
    "access_token": "vk2.a.02R...",
    "token_type": "Bearer",
    "expires_in": 3600,
    "user_id": 1234567890,
    "state": "",
    "scope": "vkid.personal_info email phone"
}

curl --location 'https://id.vk.ru/oauth2/logout?client_id=7915193' \
--header 'Authorization: Bearer vk2.a.02R...'

{
    "response": 1
}

curl --location 'https://id.vk.ru/oauth2/user_info' \
--header 'Content-Type: application/json' \
--header 'Authorization: Bearer vk2.a.02R...' \
--data '{
    "client_id":"7915193"
}'

{
    "user": {
        "user_id": "1234567890",
        "first_name": "Ivan",
        "last_name": "Ivanov",
        "phone": "79991234567",
        "avatar": "https://pp.userapi.com/60tZWMo4SmwcploUVl9XEt8ufnTTvDUmQ6Bj1g/mmv1pcj63C4.png",
        "email": "ivan_i123@vk.ru",
        "sex": 2,
        "verified": false,
        "birthday": "01.01.2000"
    }
}

curl --location 'https://id.vk.ru/oauth2/public_info?client_id=51923592' \
--header 'Content-Type: application/json' \
--data '{
    "id_token": "eyJ0eXAiOi..."
}'

{
    "user": {
        "user_id": "1234567890",
        "first_name": "Ivan",
        "last_name": "I.",
        "phone": "+42872 *** ** 29",
        "avatar": "https://pp.userapi.com/60tZWMo4SmwcploUVl9XEt8ufnTTvDUmQ6Bj1g/mmv1pcj63C4.png",
        "email": "iv***@vk.vom"
    }
}