{"record":{"id":"6373aca30f6f5b49","repo":"chroma-core/chroma","slug":"token-token-already-in-use-wanted-to-use-it-for","errorCode":null,"errorMessage":"Token {token} already in use: wanted to use it for user {user['id']} but it's already in use by user {self._token_user_mapping[token]}","messagePattern":"Token (.+?) already in use: wanted to use it for user (.+?) but it's already in use by user (.+?)","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"chromadb/auth/token_authn/__init__.py","lineNumber":183,"sourceCode":"                tokens=[creds[0]],\n            )\n            return\n\n        self._users = cast(List[User], yaml.safe_load(\"\\n\".join(creds))[\"users\"])\n        for user in self._users:\n            if \"tokens\" not in user:\n                raise ValueError(\"User missing tokens\")\n            if \"tenant\" not in user:\n                user[\"tenant\"] = \"*\"\n            if \"databases\" not in user:\n                user[\"databases\"] = [\"*\"]\n            for token in user[\"tokens\"]:\n                _check_token(token)\n                if (\n                    token in self._token_user_mapping\n                    and self._token_user_mapping[token] != user\n                ):\n                    raise ValueError(\n                        f\"Token {token} already in use: wanted to use it for \"\n                        f\"user {user['id']} but it's already in use by \"\n                        f\"user {self._token_user_mapping[token]}\"\n                    )\n                self._token_user_mapping[token] = user\n\n    @trace_method(\n        \"TokenAuthenticationServerProvider.authenticate\", OpenTelemetryGranularity.ALL\n    )\n    @override\n    def authenticate_or_raise(self, headers: Dict[str, str]) -> UserIdentity:\n        try:\n            if self._token_transport_header.value.lower() not in headers.keys():\n                raise AuthError(\n                    f\"Authorization header '{self._token_transport_header.value}' not found\"\n                )\n            token = headers[self._token_transport_header.value.lower()]\n            if self._token_transport_header == TokenTransportHeader.AUTHORIZATION:","sourceCodeStart":165,"sourceCodeEnd":201,"githubUrl":"https://github.com/chroma-core/chroma/blob/aecdd12c8a891610db8653630b066b32ceb678b5/chromadb/auth/token_authn/__init__.py#L165-L201","documentation":"Error \"Token {token} already in use: wanted to use it for user {user['id']} but it's already in use by user {self._token_user_mapping[token]}\" thrown in chroma-core/chroma.","triggerScenarios":"Thrown at chromadb/auth/token_authn/__init__.py:183 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"aecdd12c8a891610db8653630b066b32ceb678b5","analyzedAt":"2026-08-16T21:53:27.228Z","schemaVersion":2},"datasetVersion":"2026-08-16T23:17:17.608Z"}