토스로그인 시 에러 발생

dkk · 12월 5, 2025, 10:14오전

안녕하세요 토스 로그인을 구현 중 입니다.

특정 상황에서 토스 로그인이 실패하는 경우가 발생되어 질문드립니다.

ios 환경에서 테스트 할 때 발생되었습니다.

토스앱에서, 앱 연결 끊기로 기존에 있던 앱과 연결을 끊습니다.

이상태로 토스 미니앱을 qr코드를 통해 실행합니다.
그 후 토스 로그인을 시도 시, 토스앱으로 이동 약관 동의 과정을 거친 후 정상적으로 로그인이 되고, 토스 미니앱으로 돌아가게 됩니다.

이 때 토스로그인 sdk에서 에러를 발생시키면서 로그인이 실패하게 됩니다.

여기서 다시 로그인을 시도 시, 토스앱을켜서 다시 로그인하는것이 아니라, 로그인에 바로 성공되어서 로그인 성공시 콜백이 호출 됩니다.

여러가지 테스트를 하였지만 해결 할 수 없어서 도움을 요청드립니다.
토스 로그인 후, 앱에 돌아 왔을 때 발생된 에러 로그를 첨부 합니다.

Error: 로그인을 완료할 수 없습니다.
at promiseMethodWrapper (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:423686)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:199668)
at call (native)
at step (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:32339)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:31450)
at asyncGeneratorStep (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29659)
at _next (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29932)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29883)
at tryCallTwo (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:436842)
at doResolve (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:438201)
at Promise2 (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:436948)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29804)
at apply (native)
at _appLogin (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:199617)
at apply (native)
at appLogin (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:199568)
at apply (native)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:218093)
at call (native)
at step (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:32339)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:31450)
at asyncGeneratorStep (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29659)
at _next (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29932)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29883)
at tryCallTwo (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:436842)
at doResolve (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:438201)
at Promise2 (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:436948)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29804)
at apply (native)
at wrappedFunc2 (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:218134)
at apply (native)
at methodHandler (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:217796)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:219460)
at call (native)
at step (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:32339)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:31450)
at asyncGeneratorStep (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29659)
at _next (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29932)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29883)
at tryCallTwo (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:436842)
at doResolve (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:438201)
at Promise2 (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:436948)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:29804)
at apply (native)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/usimsa-app/usimsa-app.hbc:1:219871)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:1562253)
at apply (native)
at invokeGuardedCallbackImpl (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:598311)
at apply (native)
at invokeGuardedCallback (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:598368)
at apply (native)
at invokeGuardedCallbackAndCatchFirstError (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:598400)
at executeDispatch (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:598532)
at executeDispatchesAndReleaseTopLevel (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:602801)
at call (native)
at forEachAccumulated (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:600021)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:603152)
at batchedUpdatesImpl2 (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:661547)
at batchedUpdates (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:602721)
at _receiveRootNodeIDEvent (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:602993)
at receiveEvent (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:656191)
at apply (native)
at __callFunction (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:421924)
at anonymous (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:420380)
at __guard (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:421319)
at callFunctionReturnFlushedQueue (address at /var/mobile/Containers/Data/Application/C0A72512-2878-4096-B01C-7ABBC72FCA3F/Documents/appsintoss/shared/shared.hbc:1:420338)

Dylan · 12월 8, 2025, 4:10오전

안녕하세요
서버에서 accessToken 취득 이후 성공 노티를 클라이언트쪽으로 전달하고 계신 것 맞을까요 ?!

dkk · 12월 8, 2025, 5:09오전

안녕하세요 답글 주셔서 감사합니다.
노티가 정확하게 어떤 것을 말씀하시는지 잘 모르겠습니다.

현재 로그인 프로세스는

시작하기 버튼을 사용자가 클릭
토스로그인의 appLogin() 실행하여 SDK 호출
토스 인증화면
토스 인증 성공 시 sdk에서 authorizationCode, referrer 리턴
저희쪽 서버로 authorizationCode, referrer 전송하여 로그인 검증
사용자 인증에 성공하였을 경우 서버에서 accessToken 등을 리턴
로그인성공

위의 프로세스로 개발되어있습니다.

추가로 샌드박스 환경에서는 문제없이 잘 동작하고 있으며,
오직 앱인토스 콘솔에서 QR을 통해 테스트 할 때만 위의 문제가 발생되고 있는 상황입니다..

seonjeong · 12월 8, 2025, 6:09오전

@dkk 님 QR코드에서만 되지 않는다면 해당 링크 확인 가능하실까요?

http://localhost:5173/development/test/toss.html#토스앱에서-통신이-되지-않는-경우

샌드박스에서는 HTTP 요청이 허용되지만 운영 환경에서는 허용되지 않습니다.

dkk · 12월 8, 2025, 6:31오전

@seonjeong 답변 감사합니다.

링크주신 문서의 도메인이 로컬호스트로 되어있어서 확인아 안되는 것 같습니다.

http문제일 수 있지만 안드로이드 환경에서는 잘 되고 있습니다.

안드로이드 환경에서는 QR코드라도 문제 없이 진행되고 있습니다.
ios라도 최초에 1번 sdk에서 에러가 발생한 후로는 sdk에 새롭게 로그인을 요청해도 에러가 다시 발생되고 있지 않습니다.

kim · 12월 19, 2025, 5:48오전

저희도 같은 증상이 발생하는데,

혹시 해결 하셨나요?

Dylan · 12월 19, 2025, 6:04오전

@kim 링크 다시 전달드려요

글		댓글	조회수
Qr테스트 오류 개발	7	63	1월 8, 2026
로그인 관련 문제 개발 sdk	6	72	12월 4, 2025
Toss appLogin() 로그인 오류 개발 webview , sdk	4	185	10월 22, 2025
로그인 api 테스트 개발	7	104	11월 4, 2025
앱인토스 미니앱 내 토스 로그인에서 로그인 오류 발생 개발	3	77	12월 8, 2025

토스로그인 시 에러 발생

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