{"record":{"id":"073756252f46d9b5","repo":"googleapis/mcp-toolbox","slug":"email-not-found-in-response-v","errorCode":null,"errorMessage":"email not found in response: %v","messagePattern":"email not found in response: (.+?)","errorType":"exception","errorClass":null,"httpStatus":null,"severity":"error","filePath":"internal/sources/util.go","lineNumber":117,"sourceCode":"\tbodyBytes, err := io.ReadAll(resp.Body)\n\tif err != nil {\n\t\treturn \"\", fmt.Errorf(\"error reading response body %d: %s\", resp.StatusCode, string(bodyBytes))\n\t}\n\tif resp.StatusCode != http.StatusOK {\n\t\treturn \"\", fmt.Errorf(\"tokeninfo endpoint returned non-OK status %d: %s\", resp.StatusCode, string(bodyBytes))\n\t}\n\n\t// Unmarshal response body and get `email`\n\tvar responseJSON map[string]any\n\terr = json.Unmarshal(bodyBytes, &responseJSON)\n\tif err != nil {\n\n\t\treturn \"\", fmt.Errorf(\"error parsing JSON: %v\", err)\n\t}\n\n\temailValue, ok := responseJSON[\"email\"]\n\tif !ok {\n\t\treturn \"\", fmt.Errorf(\"email not found in response: %v\", err)\n\t}\n\n\tfullEmail, ok := emailValue.(string)\n\tif !ok {\n\t\treturn \"\", fmt.Errorf(\"email field is not a string\")\n\t}\n\n\tvar username string\n\t// Format the username based on Database Type\n\tswitch strings.ToLower(dbType) {\n\tcase \"mysql\":\n\t\tusername, _, _ = strings.Cut(fullEmail, \"@\")\n\n\tcase \"postgres\":\n\t\t// service account email used for IAM should trim the suffix\n\t\tusername = strings.TrimSuffix(fullEmail, \".gserviceaccount.com\")\n\n\tdefault:","sourceCodeStart":99,"sourceCodeEnd":135,"githubUrl":"https://github.com/googleapis/mcp-toolbox/blob/8cc6e09de2ad7b8bffc77751799585a1401a48eb/internal/sources/util.go#L99-L135","documentation":"The decoded tokeninfo JSON contained no top-level `email` key — the credential's token does not carry an email identity (e.g. a token type without an associated user/service-account email).","triggerScenarios":"Thrown at internal/sources/util.go:117 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Use a credential that has an associated email (service account or user ADC)","Check the token type and scopes","Inspect the logged response JSON"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"8cc6e09de2ad7b8bffc77751799585a1401a48eb","analyzedAt":"2026-09-05T01:10:36.887Z","contentChangedAt":"2026-09-05T01:10:36.887Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}