request method

Future<String> request({ String? clientId, String? redirectUri, String? codeVerifier, List<Prompt>? prompts, List<String>? scopes, String? state, })

Requests authorization code via Chrome Custom Tabs (on Android) and ASWebAuthenticationSession (on iOS).

Implementation

Future<String> request(
    {String? clientId,
    String? redirectUri,
    String? codeVerifier,
    List<Prompt>? prompts,
    List<String>? scopes,
    String? state}) async {
  final finalRedirectUri = redirectUri ?? "kakao${_platformKey()}://oauth";
  var codeChallenge;
  if (codeVerifier != null) {
    codeChallenge =
        base64.encode(sha256.convert(utf8.encode(codeVerifier)).bytes);
  }
  final params = {
    "client_id": clientId ?? _platformKey(),
    "redirect_uri": finalRedirectUri,
    "response_type": "code",
    // "approval_type": "individual",
    "scope": scopes == null ? null : scopes.join(" "),
    "prompt": state == null
        ? (prompts == null ? null : parsePrompts(prompts))
        : parsePrompts(_makeCertPrompts(prompts)),
    "state": state == null ? null : state,
    "codeChallenge": codeChallenge,
    "codeChallengeMethod": codeChallenge != null ? "S256" : null,
    "ka": await KakaoContext.kaHeader
  };
  params.removeWhere((k, v) => v == null);
  final url = Uri.https(KakaoContext.hosts.kauth, "/oauth/authorize", params);
  final authCode = await launchBrowserTab(url, redirectUri: finalRedirectUri);
  return _parseCode(authCode);
}